About the Monster HTPS 7000 Signature SeriesGot a high-performance home theater? Heres something to think about. AC power is often the enemy of great home theater. Electrical spikes and surges can damage components, and AC line noise can cause picture and sound quality to take a hit. But you can prevent all that by plugging your audio/video gear into Monsters HTPS 7000 power line conditioner. Its packed with the latest technology to protect your equipment and ensure that it always gets clean, pure, noise-free AC power.Isolation transformers cancel out AC line noiseMonsters Dual Balanced Pure Power™ employs two unique isolation transformers that convert the imbalanced power coming from your wall socket into pure, balanced power that virtually eliminates noise-related hum and buzz. This is an outstanding line conditioner for audiophiles or videophiles — or really anyone who wants to get the best possible performance from their equipment.Protect every path to your componentsOn the rear panel youll find twelve AC outlets grouped into four separate banks. Each bank features noise filtering designed to optimize performance for a specific type of component: analog audio, video, digital, and high-current audio. Plug your TV and Blu-ray player into the video outlets to enjoy a dazzling picture, and connect your home theater receiver to a high-current audio receptacle for robust surround sound. The HTPS 7000 also gives you three sets of coaxial connections to guard against voltage spikes sneaking in through your cable or satellite line.Microprocessor-controlled circuitry takes power protection to a new levelA sophisticated microprocessor acts as a first line of defense against sudden power spikes. It monitors incoming AC power and immediately disconnects your equipment if the voltage reaches unsafe high or low levels. When the voltage returns to a safe range, the HTPS 7000 reconnects your system. A front-panel LED display makes it easy to keep tabs on your power.Product Highlights:12 AC outlets (mode is selectable: Switched, Switched with Delay, or Unswitched)Monster Dual Balanced Pure Power™ uses two isolation transformers to eliminate noise for sensitive audio and video componentsClean Power™ Stage 5 circuitry includes four discrete filter sections for Analog Audio, Video, Digital, and High-Current Audio componentsmaximum capacity: 1800 watts3 sets of coaxial connections for cable and satellite TV1 set of RJ-11/RJ-45 phone or Ethernet connectionsLED display shows input AC voltagestatus lights including Ground OK, Abnormal Voltage, and Wiring Reversed7200-joule surge protection8-ft. Ultra-High Current PowerLine™ 300 double-shielded power cord17-1/8W x 5-3/4H x 16-1/4Dweight: 44.8 lbs.Noel Lee, The Head Monster, announced the release of the Monster Power Signature Series AC power products for ultimate refinement in power stabilization, filtering, and surge protection. New products include the Signature Series Home Theater Power Source HTPS 7000. Attractive new True Blue LED readouts offer a bold new look to Monsters Signature Power products. Each is signed personally by the Head Monster, and stands as Noel Lees personal statement on high-quality power, with looks and performance to match. Signature Series Home Theater Power Source HTPS 7000: The quality of the incoming AC power line dictates whether expensive connected equipment reaches maximum performance. Power line pollution ruins the clarity, tonality, and bass control of a good home theatre system. The Signature 7000 is the first Monster Power product using patent-pending T2 circuitry that allows the 7000 to intelligently disconnect its outlet in over- and under-voltage conditions. The Head Monster goes on, The top-of-the-line Signature Series HTPS 7000 features the worlds best filter circuitry thats custom-designed for us by Richard Marsh. It features triple-shielded transformers and switchable balanced or isolated settings thatll subdue any noise or ground loop you can throw at it. New T2 technology adds a whole new level of protection for longer periods of disturbance on the AC power line. the Signature Series HTPS 7000 retails for $1499.95. HTPS 7000 employs cutting-edge technology to perform the difficult task of balancing the power used by your home theater system. Equipped with unique twin isolation transformers, HTPS 7000 refines and matches the current from your wall outlet for a perfect balance between the negative and positive current flowing to and from your home Theater components. The result is a virtually complete elimination of power line oscillations and the hum, buzz, and static they cause. With HTPS 7000 as an integral part of your home theater system, your audio components will perform with stunning clarity, significantly expanded frequency response, and powerfully precise imaging, while your video components will deliver clearer, sharper images, brilliant colors, and a static-free picture. - Monster

About the Monster HTPS 7000Got a high-performance home theater? Heres something to think about. AC power is often the enemy of great home theater. Electrical spikes and surges can damage components, and AC line noise can cause picture and sound quality to take a hit. But you can prevent all that by plugging your audio/video gear into Monsters HTPS 7000 power line conditioner. Its packed with the latest technology to protect your equipment and ensure that it always gets clean, pure, noise-free AC power.Isolation transformers cancel out AC line noiseMonsters Dual Balanced Pure Power™ employs two unique isolation transformers that convert the imbalanced power coming from your wall socket into pure, balanced power that virtually eliminates noise-related hum and buzz. This is an outstanding line conditioner for audiophiles or videophiles — or really anyone who wants to get the best possible performance from their equipment.Protect every path to your componentsOn the rear panel youll find twelve AC outlets grouped into four separate banks. Each bank features noise filtering designed to optimize performance for a specific type of component: analog audio, video, digital, and high-current audio. Plug your TV and Blu-ray player into the video outlets to enjoy a dazzling picture, and connect your home theater receiver to a high-current audio receptacle for robust surround sound. The HTPS 7000 also gives you three sets of coaxial connections to guard against voltage spikes sneaking in through your cable or satellite line.Microprocessor-controlled circuitry takes power protection to a new levelA sophisticated microprocessor acts as a first line of defense against sudden power spikes. It monitors incoming AC power and immediately disconnects your equipment if the voltage reaches unsafe high or low levels. When the voltage returns to a safe range, the HTPS 7000 reconnects your system. A front-panel LED display makes it easy to keep tabs on your power.Product Highlights:12 AC outlets (mode is selectable: Switched, Switched with Delay, or Unswitched)Monster Dual Balanced Pure Power™ uses two isolation transformers to eliminate noise for sensitive audio and video componentsClean Power™ Stage 5 circuitry includes four discrete filter sections for Analog Audio, Video, Digital, and High-Current Audio componentsmaximum capacity: 1800 watts3 sets of coaxial connections for cable and satellite TV1 set of RJ-11/RJ-45 phone or Ethernet connectionsLED display shows input AC voltagestatus lights including Ground OK, Abnormal Voltage, and Wiring Reversed7200-joule surge protection8-ft. Ultra-High Current PowerLine™ 300 double-shielded power cord17-1/8W x 5-3/4H x 16-1/4Dweight: 44.8 lbs.Noel Lee, The Head Monster, announced the release of the Monster Power Signature Series AC power products for ultimate refinement in power stabilization, filtering, and surge protection. New products include the Signature Series Home Theater Power Source HTPS 7000. Attractive new True Blue LED readouts offer a bold new look to Monsters Signature Power products. Each is signed personally by the Head Monster, and stands as Noel Lees personal statement on high-quality power, with looks and performance to match. Signature Series Home Theater Power Source HTPS 7000: The quality of the incoming AC power line dictates whether expensive connected equipment reaches maximum performance. Power line pollution ruins the clarity, tonality, and bass control of a good home theatre system. The Signature 7000 is the first Monster Power product using patent-pending T2 circuitry that allows the 7000 to intelligently disconnect its outlet in over- and under-voltage conditions. The Head Monster goes on, The top-of-the-line Signature Series HTPS 7000 features the worlds best filter circuitry thats custom-designed for us by Richard Marsh. It features triple-shielded transformers and switchable balanced or isolated settings thatll subdue any noise or ground loop you can throw at it. New T2 technology adds a whole new level of protection for longer periods of disturbance on the AC power line. the Signature Series HTPS 7000 retails for $1499.95. HTPS 7000 employs cutting-edge technology to perform the difficult task of balancing the power used by your home theater system. Equipped with unique twin isolation transformers, HTPS 7000 refines and matches the current from your wall outlet for a perfect balance between the negative and positive current flowing to and from your home Theater components. The result is a virtually complete elimination of power line oscillations and the hum, buzz, and static they cause. With HTPS 7000 as an integral part of your home theater system, your audio components will perform with stunning clarity, significantly expanded frequency response, and powerfully precise imaging, while your video components will deliver clearer, sharper images, brilliant colors, and a static-free picture. - Monster

Monster Power Signature HTPS 7000 Home Theatre Reference PowerSourceWorks great, some scuffs, scratches or marks, see photos for details.Lower 48 shipping only.

Monster Power Signature HTPS 7000 Home Theatre Reference PowerSourceWorks great, some scuffs, scratches or marks, see photos for details.Lower 48 shipping only.

Monster Power Home Theatre Reference Powersource HTPS 7000 MKII With Dual Band, Pure power This monster power pre-owned very good condition, No return

Perfect condition…This Monster Power HTPS 7000 Home Theater Power Source is a must-have for any home theater enthusiast. With its ability to improve the performance of all your electronic components, including amplifiers, this power source is an ideal addition to your home theater setup. Crafted by Signature, this power source is compatible with all universal brands and is specifically designed to enhance the audio quality of your home theater. It falls under the category of Consumer Electronics, TV, Video & Home Audio, Home Audio, Home Audio Components, and Other Home Stereo Components. Get ready to experience the ultimate audio quality with Monster Power HTPS 7000 Home Theater Power Source.

Perfect condition…This Monster Power HTPS 7000 Home Theater Power Source is a must-have for any home theater enthusiast. With its ability to improve the performance of all your electronic components, including amplifiers, this power source is an ideal addition to your home theater setup. Crafted by Signature, this power source is compatible with all universal brands and is specifically designed to enhance the audio quality of your home theater. It falls under the category of Consumer Electronics, TV, Video & Home Audio, Home Audio, Home Audio Components, and Other Home Stereo Components. Get ready to experience the ultimate audio quality with Monster Power HTPS 7000 Home Theater Power Source.

Perfect condition…This Monster Power HTPS 7000 Home Theater Power Source is a must-have for any home theater enthusiast. With its ability to improve the performance of all your electronic components, including amplifiers, this power source is an ideal addition to your home theater setup. Crafted by Signature, this power source is compatible with all universal brands and is specifically designed to enhance the audio quality of your home theater. It falls under the category of Consumer Electronics, TV, Video & Home Audio, Home Audio, Home Audio Components, and Other Home Stereo Components. Get ready to experience the ultimate audio quality with Monster Power HTPS 7000 Home Theater Power Source.

Monster Power Home Theatre Reference Powersource HTPS 7000 MKII With Dual Band, Pure power This monster power pre-owned very good condition,

Monster Power Signature Series Home Theatre Reference Power-source HTPS 7000MKII. Monster Signature Series Home Theater Reference HTPS 7000 MKII PowerSource with Dual Balanced Pure Power Transformers and Clean Power Stage 5 Monster Clean Power Stage 5 (MP HTPS7000SS MKII) Brand New. Never been Used. Not a single scratch on it. Powered ON for the first time only to test and take Pics Dimensions: 5.69 H x 17.13 W x 15.50 D; weight: 46.10 lbs Monster Clean Power Stage 5 circuitry filter dramatically reduces electronic noise. T2 automatic disconnect/reconnect protection circuitry. Tri-Mode power protection circuitry with audible alarm and auto disconnect. 7200 joule rating provides a high level of surge absorption. Product description Product Description Hot on the heels of the most successful power products launch in the history of home theater, Noel Lee, The Head Monster, announces the ultimate refinement in power conditioning.

Monster Power Pro 7000 Professional Reference PowerSource Dual Balanced Power. This item is in good physical and working condition as shown in the photos. If you have any questions please message me prior to purchase

Monster Power Pro 7000 Professional Reference PowerSource Dual Balanced Power. This item is in good physical and working condition as shown in the photos. If you have any questions please message me prior to purchase

Monster Power Pro 7000 Professional Reference PowerSource Dual Balanced Power. This item is in good physical and working condition as shown in the photos. If you have any questions please message me prior to purchase

Monster Power Pro 7000 Professional Reference PowerSource Dual Balanced Power. This item is in good physical and working condition as shown in the photos. If you have any questions please message me prior to purchase

Monster Power Pro 7000 Professional Reference PowerSource Dual Balanced Power. This item is in good physical and working condition as shown in the photos. If you have any questions please message me prior to purchase

You read that right - item is brand new in the box and has been in a storage unit for over a decade. Purchased new at the long-defunct magnolia Hi-Fi of Bellevue, WA. Please look at my other auctions for more NOS items, including McIntosh components. Monster Home Theatre Power Source HTPS7000 Provides Balanced Power and Ultimate Power Conditioning for the Best Possible Home Theatre Performance HTPS7000 employs cutting edge technology to perform the difficult task of balancing the power used by your home theater system. There are some scratches on top of the case, front panel is clean, please take a look at the pictures and see what you think. Very heavy piece, 44 pounds. Shipping will be $95 lower 48, Insured and packed properly. If you have any Questions, please email. Thanks.Features: Data Line Protection, With Surge ProtectionNumber of Outlets: 12 outletsStyle: Wall TapSurge Rating: 3,145 joulesDimensions & WeightWidth · Depth · Height · WeightWidth17 inDepth14.3 inHeight5.7 inWeight 44.09 lbs.GeneralDevice Type Surge protector - external Included A/C Power cable - integrated - 8 ft Features Audible alarm, LED display, voltage monitoringPower DeviceLoad Rating Home theater systemInput Voltage AC 120 VDataline Surge Protection Phone line - RJ-11 Cable TV Satellite AntennaSurge Suppression YesSurge Energy Rating 3145 JoulesCircuit Protection Circuit breaker

Monster Power Signature Series Home Theatre Reference Power-source. The HTPS 7000 is both a power conditioner and 3145 joule rated surge protector built into one. It is like new condition. Fully tested it works great as you can see in the picturesThe Clean Power Stage 5 provides the connected components with both isolation and filtration through 5 discrete filters, (with an extra pair on the digital inputs) to effectively eliminate line-borne noise anomalies and prevent components in the system from potentially contaminating one another. Whereas some line conditioners only treat power coming in, this still leaves the door open to cross contamination when power is coming back out. The HTPS 7000 eliminates this probability by isolating components. The front displays are dimmable. Comes with box only what you see is what you will get. of 37®Monster Home Theater MusicTwo Channel Reference Power AmplifierSignatureMPA 2250Owner’s ManualMonster Home Theater MusicThree Channel Reference Power AmplifierSignatureMPA 3250TABLE OF CONTENTSPageImportant Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8MPA 3250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MPA 2250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Amplifier Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Appendix A – System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B – Amplifier Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32IMPORTANT SAFETY INSTRUCTIONSPlease read and observe the following safety points at all times:•Read these instructions.•Keep these instructions.•Heed all warnings.•Follow all instructions.•Do not use this apparatus near water.•Clean only with dry cloth.•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.•Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat.•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has twoblades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. This plug is designed to be inserted into a grounded outlet only. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.•Only use attachments/accessories specified by the manufacturer.•Unplug this apparatus from its power source during lightning storms or when unused for long periodsof time.•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.•To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moistureiiiAdditional Manufacturer Warnings WARNING – Power SourcesDO NOT plug this apparatus into a power outlet that differs from the source indicated for safe use. If you don’t know the type of electrical power that is supplied to your home, please consult your local power company.WARNING – Cord SafetyA. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. When routing your Monster Reference Home Theater Music Power Amplifier AC power cord, do not place it near heavy foot traffic areas (e.g., hallways, doorways, and kitchen floors). Do not create a trip hazard with the power cord.B. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.C. Only use attachments/accessories specified by the manufacturer. WARNING – Grounding and PolarizationYour Monster Home Theater Music Reference Power Amplifier has a three-wire grounding-type AC plug (a three-prong outlet). This plug is designed to be inserted into a grounded outlet only.A. If this plug doesn’t fit your outlet, DO NOT attempt to force it.B. DO NOT attempt to defeat the grounding feature by using a 3-to-2 prong adapter. Instead, call a local electrician to install a properly grounded outlet. WARNING – Avoiding Electrical ShocksA. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink).B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit. WARNING – Exposure To HeatDo not block any ventilation openings. Install in accordance with the manufacturer’s instructions.Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat. Do not expose your Monster Home Theater Music Reference Power Amplifier to direct sunlight or place it near wall heaters, space heaters, or any enclosed space prone to temperature increase. Please see the section on installation for more information.If, for any reason, your Monster Home Theater Music Reference Power Amplifier is not operating properly, do not remove any part of the unit for repair. Unplug it and consult this owner’s manual for warranty and service information.1INTRODUCTIONDear Enthusiast:Thank you for purchasing my Signature Series Monster Home Theater Music Reference Power Amplifier. I started my Signature Series in 2002 by introducing special versions of the Monster Power Automatic Voltage Stabilizer 2000, Home Theater Power Source 7000 and Reference Home Theater PowerCenter 5100. Each of these products represented a breakthrough in performance and affordability and included special enhancements for audiophiles and videophiles who appreciate minute attention to detail and elegant design...all geared towards getting the most from their home theater system. Now I am introducing my signature line of Monster Reference Home Theater Music Power Amplifiers for those of you who are passionate about movies and music. I’ve spent years perfecting this design working with renowned audiophile designers Richard Marsh, Demian Martin and the other dedicated professionals at Monster. After countless hours of critical listening and dozens of prototype designs, we have finally completed an amplifier that is good enough to be part of The Head Monster’s Signature Series. The Home Theater Music amplifiers are designed to please the most demanding critical listeners...like me! I like to listen to music LOUD with all the complex harmonics and dynamic range reproduced as accurately as possible. I also like to watch movies and to have the power and responsiveness necessary to reproduce movie soundtracks from the subtlest rustle of leaves to the most violent explosions. It takes a very special amplifier design to satisfy the needs of both home theater and music.I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps.Monsterously,Noel LeeThe Head MonsterP.S. Here are some of the unique features of the Monster Home Theater Music Reference Power Amplifiers:MONSTER MIRRORED AMPLIFIER TECHNOLOGY™— (MMAT™)The MPA 2250 two channel, and MPA 3250 three channel amplifiers use a current-feedback topology we call MMAT™to ensure low distortion and greater clarity even at the highest playback levels. Any signal put into this amp will be mirroredat the output, just amplified, with all details intact. Monster amplifiers employ fully complimentary differential circuits, so the two halves of the amplifier are mirror images of themselves — helping lower noise and distortion.OTHER CIRCUIT INNOVATIONSAt the input end, a balanced complimentary push-pull stage delivers ultra-wide bandwidth performance for the best reproduction of today’s ultra high resolution 192khz DVD-Audio and Super Audio CD formats. Monster amplifiers are specially designed to be stable at high frequencies to support DVD-A and SACD.At the output end, high current MOSFET output transistors deliver instantaneous current for maximum transient impact. Monster amps provide high current peak delivery for a realistic, exciting home theater and music experience. of 37®Monster Home Theater MusicTwo Channel Reference Power AmplifierSignatureMPA 2250Owner’s ManualMonster Home Theater MusicThree Channel Reference Power AmplifierSignatureMPA 3250TABLE OF CONTENTSPageImportant Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8MPA 3250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MPA 2250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Amplifier Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Appendix A – System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B – Amplifier Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32IMPORTANT SAFETY INSTRUCTIONSPlease read and observe the following safety points at all times:•Read these instructions.•Keep these instructions.•Heed all warnings.•Follow all instructions.•Do not use this apparatus near water.•Clean only with dry cloth.•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.•Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat.•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has twoblades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. This plug is designed to be inserted into a grounded outlet only. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.•Only use attachments/accessories specified by the manufacturer.•Unplug this apparatus from its power source during lightning storms or when unused for long periodsof time.•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.•To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moistureiiiAdditional Manufacturer Warnings WARNING – Power SourcesDO NOT plug this apparatus into a power outlet that differs from the source indicated for safe use. If you don’t know the type of electrical power that is supplied to your home, please consult your local power company.WARNING – Cord SafetyA. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. When routing your Monster Reference Home Theater Music Power Amplifier AC power cord, do not place it near heavy foot traffic areas (e.g., hallways, doorways, and kitchen floors). Do not create a trip hazard with the power cord.B. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.C. Only use attachments/accessories specified by the manufacturer. WARNING – Grounding and PolarizationYour Monster Home Theater Music Reference Power Amplifier has a three-wire grounding-type AC plug (a three-prong outlet). This plug is designed to be inserted into a grounded outlet only.A. If this plug doesn’t fit your outlet, DO NOT attempt to force it.B. DO NOT attempt to defeat the grounding feature by using a 3-to-2 prong adapter. Instead, call a local electrician to install a properly grounded outlet. WARNING – Avoiding Electrical ShocksA. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink).B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit. WARNING – Exposure To HeatDo not block any ventilation openings. Install in accordance with the manufacturer’s instructions.Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat. Do not expose your Monster Home Theater Music Reference Power Amplifier to direct sunlight or place it near wall heaters, space heaters, or any enclosed space prone to temperature increase. Please see the section on installation for more information.If, for any reason, your Monster Home Theater Music Reference Power Amplifier is not operating properly, do not remove any part of the unit for repair. Unplug it and consult this owner’s manual for warranty and service information.1INTRODUCTIONDear Enthusiast:Thank you for purchasing my Signature Series Monster Home Theater Music Reference Power Amplifier. I started my Signature Series in 2002 by introducing special versions of the Monster Power Automatic Voltage Stabilizer 2000, Home Theater Power Source 7000 and Reference Home Theater PowerCenter 5100. Each of these products represented a breakthrough in performance and affordability and included special enhancements for audiophiles and videophiles who appreciate minute attention to detail and elegant design...all geared towards getting the most from their home theater system. Now I am introducing my signature line of Monster Reference Home Theater Music Power Amplifiers for those of you who are passionate about movies and music. I’ve spent years perfecting this design working with renowned audiophile designers Richard Marsh, Demian Martin and the other dedicated professionals at Monster. After countless hours of critical listening and dozens of prototype designs, we have finally completed an amplifier that is good enough to be part of The Head Monster’s Signature Series. The Home Theater Music amplifiers are designed to please the most demanding critical listeners...like me! I like to listen to music LOUD with all the complex harmonics and dynamic range reproduced as accurately as possible. I also like to watch movies and to have the power and responsiveness necessary to reproduce movie soundtracks from the subtlest rustle of leaves to the most violent explosions. It takes a very special amplifier design to satisfy the needs of both home theater and music.I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps.Monsterously,Noel LeeThe Head MonsterP.S. Here are some of the unique features of the Monster Home Theater Music Reference Power Amplifiers:MONSTER MIRRORED AMPLIFIER TECHNOLOGY™— (MMAT™)The MPA 2250 two channel, and MPA 3250 three channel amplifiers use a current-feedback topology we call MMAT™to ensure low distortion and greater clarity even at the highest playback levels. Any signal put into this amp will be mirroredat the output, just amplified, with all details intact. Monster amplifiers employ fully complimentary differential circuits, so the two halves of the amplifier are mirror images of themselves — helping lower noise and distortion.OTHER CIRCUIT INNOVATIONSAt the input end, a balanced complimentary push-pull stage delivers ultra-wide bandwidth performance for the best reproduction of today’s ultra high resolution 192khz DVD-Audio and Super Audio CD formats. Monster amplifiers are specially designed to be stable at high frequencies to support DVD-A and SACD.At the output end, high current MOSFET output transistors deliver instantaneous current for maximum transient impact. Monster amps provide high current peak delivery for a realistic, exciting home theater and music experience.

Monster Power Signature Series Home Theatre Reference Power-source. The HTPS 7000 is both a power conditioner and 3145 joule rated surge protector built into one. It is like new condition. Fully tested it works great as you can see in the picturesThe Clean Power Stage 5 provides the connected components with both isolation and filtration through 5 discrete filters, (with an extra pair on the digital inputs) to effectively eliminate line-borne noise anomalies and prevent components in the system from potentially contaminating one another. Whereas some line conditioners only treat power coming in, this still leaves the door open to cross contamination when power is coming back out. The HTPS 7000 eliminates this probability by isolating components. The front displays are dimmable. Comes with box only what you see is what you will get. of 37®Monster Home Theater MusicTwo Channel Reference Power AmplifierSignatureMPA 2250Owner’s ManualMonster Home Theater MusicThree Channel Reference Power AmplifierSignatureMPA 3250TABLE OF CONTENTSPageImportant Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8MPA 3250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MPA 2250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Amplifier Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Appendix A – System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B – Amplifier Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32IMPORTANT SAFETY INSTRUCTIONSPlease read and observe the following safety points at all times:•Read these instructions.•Keep these instructions.•Heed all warnings.•Follow all instructions.•Do not use this apparatus near water.•Clean only with dry cloth.•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.•Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat.•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has twoblades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. This plug is designed to be inserted into a grounded outlet only. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.•Only use attachments/accessories specified by the manufacturer.•Unplug this apparatus from its power source during lightning storms or when unused for long periodsof time.•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.•To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moistureiiiAdditional Manufacturer Warnings WARNING – Power SourcesDO NOT plug this apparatus into a power outlet that differs from the source indicated for safe use. If you don’t know the type of electrical power that is supplied to your home, please consult your local power company.WARNING – Cord SafetyA. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. When routing your Monster Reference Home Theater Music Power Amplifier AC power cord, do not place it near heavy foot traffic areas (e.g., hallways, doorways, and kitchen floors). Do not create a trip hazard with the power cord.B. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.C. Only use attachments/accessories specified by the manufacturer. WARNING – Grounding and PolarizationYour Monster Home Theater Music Reference Power Amplifier has a three-wire grounding-type AC plug (a three-prong outlet). This plug is designed to be inserted into a grounded outlet only.A. If this plug doesn’t fit your outlet, DO NOT attempt to force it.B. DO NOT attempt to defeat the grounding feature by using a 3-to-2 prong adapter. Instead, call a local electrician to install a properly grounded outlet. WARNING – Avoiding Electrical ShocksA. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink).B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit. WARNING – Exposure To HeatDo not block any ventilation openings. Install in accordance with the manufacturer’s instructions.Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat. Do not expose your Monster Home Theater Music Reference Power Amplifier to direct sunlight or place it near wall heaters, space heaters, or any enclosed space prone to temperature increase. Please see the section on installation for more information.If, for any reason, your Monster Home Theater Music Reference Power Amplifier is not operating properly, do not remove any part of the unit for repair. Unplug it and consult this owner’s manual for warranty and service information.1INTRODUCTIONDear Enthusiast:Thank you for purchasing my Signature Series Monster Home Theater Music Reference Power Amplifier. I started my Signature Series in 2002 by introducing special versions of the Monster Power Automatic Voltage Stabilizer 2000, Home Theater Power Source 7000 and Reference Home Theater PowerCenter 5100. Each of these products represented a breakthrough in performance and affordability and included special enhancements for audiophiles and videophiles who appreciate minute attention to detail and elegant design...all geared towards getting the most from their home theater system. Now I am introducing my signature line of Monster Reference Home Theater Music Power Amplifiers for those of you who are passionate about movies and music. I’ve spent years perfecting this design working with renowned audiophile designers Richard Marsh, Demian Martin and the other dedicated professionals at Monster. After countless hours of critical listening and dozens of prototype designs, we have finally completed an amplifier that is good enough to be part of The Head Monster’s Signature Series. The Home Theater Music amplifiers are designed to please the most demanding critical listeners...like me! I like to listen to music LOUD with all the complex harmonics and dynamic range reproduced as accurately as possible. I also like to watch movies and to have the power and responsiveness necessary to reproduce movie soundtracks from the subtlest rustle of leaves to the most violent explosions. It takes a very special amplifier design to satisfy the needs of both home theater and music.I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps.Monsterously,Noel LeeThe Head MonsterP.S. Here are some of the unique features of the Monster Home Theater Music Reference Power Amplifiers:MONSTER MIRRORED AMPLIFIER TECHNOLOGY™— (MMAT™)The MPA 2250 two channel, and MPA 3250 three channel amplifiers use a current-feedback topology we call MMAT™to ensure low distortion and greater clarity even at the highest playback levels. Any signal put into this amp will be mirroredat the output, just amplified, with all details intact. Monster amplifiers employ fully complimentary differential circuits, so the two halves of the amplifier are mirror images of themselves — helping lower noise and distortion.OTHER CIRCUIT INNOVATIONSAt the input end, a balanced complimentary push-pull stage delivers ultra-wide bandwidth performance for the best reproduction of today’s ultra high resolution 192khz DVD-Audio and Super Audio CD formats. Monster amplifiers are specially designed to be stable at high frequencies to support DVD-A and SACD.At the output end, high current MOSFET output transistors deliver instantaneous current for maximum transient impact. Monster amps provide high current peak delivery for a realistic, exciting home theater and music experience. of 37®Monster Home Theater MusicTwo Channel Reference Power AmplifierSignatureMPA 2250Owner’s ManualMonster Home Theater MusicThree Channel Reference Power AmplifierSignatureMPA 3250TABLE OF CONTENTSPageImportant Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8MPA 3250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MPA 2250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Amplifier Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Appendix A – System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B – Amplifier Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32IMPORTANT SAFETY INSTRUCTIONSPlease read and observe the following safety points at all times:•Read these instructions.•Keep these instructions.•Heed all warnings.•Follow all instructions.•Do not use this apparatus near water.•Clean only with dry cloth.•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.•Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat.•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has twoblades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. This plug is designed to be inserted into a grounded outlet only. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.•Only use attachments/accessories specified by the manufacturer.•Unplug this apparatus from its power source during lightning storms or when unused for long periodsof time.•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.•To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moistureiiiAdditional Manufacturer Warnings WARNING – Power SourcesDO NOT plug this apparatus into a power outlet that differs from the source indicated for safe use. If you don’t know the type of electrical power that is supplied to your home, please consult your local power company.WARNING – Cord SafetyA. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. When routing your Monster Reference Home Theater Music Power Amplifier AC power cord, do not place it near heavy foot traffic areas (e.g., hallways, doorways, and kitchen floors). Do not create a trip hazard with the power cord.B. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.C. Only use attachments/accessories specified by the manufacturer. WARNING – Grounding and PolarizationYour Monster Home Theater Music Reference Power Amplifier has a three-wire grounding-type AC plug (a three-prong outlet). This plug is designed to be inserted into a grounded outlet only.A. If this plug doesn’t fit your outlet, DO NOT attempt to force it.B. DO NOT attempt to defeat the grounding feature by using a 3-to-2 prong adapter. Instead, call a local electrician to install a properly grounded outlet. WARNING – Avoiding Electrical ShocksA. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink).B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit. WARNING – Exposure To HeatDo not block any ventilation openings. Install in accordance with the manufacturer’s instructions.Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat. Do not expose your Monster Home Theater Music Reference Power Amplifier to direct sunlight or place it near wall heaters, space heaters, or any enclosed space prone to temperature increase. Please see the section on installation for more information.If, for any reason, your Monster Home Theater Music Reference Power Amplifier is not operating properly, do not remove any part of the unit for repair. Unplug it and consult this owner’s manual for warranty and service information.1INTRODUCTIONDear Enthusiast:Thank you for purchasing my Signature Series Monster Home Theater Music Reference Power Amplifier. I started my Signature Series in 2002 by introducing special versions of the Monster Power Automatic Voltage Stabilizer 2000, Home Theater Power Source 7000 and Reference Home Theater PowerCenter 5100. Each of these products represented a breakthrough in performance and affordability and included special enhancements for audiophiles and videophiles who appreciate minute attention to detail and elegant design...all geared towards getting the most from their home theater system. Now I am introducing my signature line of Monster Reference Home Theater Music Power Amplifiers for those of you who are passionate about movies and music. I’ve spent years perfecting this design working with renowned audiophile designers Richard Marsh, Demian Martin and the other dedicated professionals at Monster. After countless hours of critical listening and dozens of prototype designs, we have finally completed an amplifier that is good enough to be part of The Head Monster’s Signature Series. The Home Theater Music amplifiers are designed to please the most demanding critical listeners...like me! I like to listen to music LOUD with all the complex harmonics and dynamic range reproduced as accurately as possible. I also like to watch movies and to have the power and responsiveness necessary to reproduce movie soundtracks from the subtlest rustle of leaves to the most violent explosions. It takes a very special amplifier design to satisfy the needs of both home theater and music.I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps.Monsterously,Noel LeeThe Head MonsterP.S. Here are some of the unique features of the Monster Home Theater Music Reference Power Amplifiers:MONSTER MIRRORED AMPLIFIER TECHNOLOGY™— (MMAT™)The MPA 2250 two channel, and MPA 3250 three channel amplifiers use a current-feedback topology we call MMAT™to ensure low distortion and greater clarity even at the highest playback levels. Any signal put into this amp will be mirroredat the output, just amplified, with all details intact. Monster amplifiers employ fully complimentary differential circuits, so the two halves of the amplifier are mirror images of themselves — helping lower noise and distortion.OTHER CIRCUIT INNOVATIONSAt the input end, a balanced complimentary push-pull stage delivers ultra-wide bandwidth performance for the best reproduction of today’s ultra high resolution 192khz DVD-Audio and Super Audio CD formats. Monster amplifiers are specially designed to be stable at high frequencies to support DVD-A and SACD.At the output end, high current MOSFET output transistors deliver instantaneous current for maximum transient impact. Monster amps provide high current peak delivery for a realistic, exciting home theater and music experience.

Monster Power Signature Series Home Theatre Reference Power-source. The HTPS 7000 is both a power conditioner and 3145 joule rated surge protector built into one. It is like new condition. Fully tested it works great as you can see in the picturesThe Clean Power Stage 5 provides the connected components with both isolation and filtration through 5 discrete filters, (with an extra pair on the digital inputs) to effectively eliminate line-borne noise anomalies and prevent components in the system from potentially contaminating one another. Whereas some line conditioners only treat power coming in, this still leaves the door open to cross contamination when power is coming back out. The HTPS 7000 eliminates this probability by isolating components. The front displays are dimmable. Comes with box only what you see is what you will get. of 37®Monster Home Theater MusicTwo Channel Reference Power AmplifierSignatureMPA 2250Owner’s ManualMonster Home Theater MusicThree Channel Reference Power AmplifierSignatureMPA 3250TABLE OF CONTENTSPageImportant Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8MPA 3250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MPA 2250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Amplifier Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Appendix A – System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B – Amplifier Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32IMPORTANT SAFETY INSTRUCTIONSPlease read and observe the following safety points at all times:•Read these instructions.•Keep these instructions.•Heed all warnings.•Follow all instructions.•Do not use this apparatus near water.•Clean only with dry cloth.•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.•Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat.•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has twoblades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. This plug is designed to be inserted into a grounded outlet only. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.•Only use attachments/accessories specified by the manufacturer.•Unplug this apparatus from its power source during lightning storms or when unused for long periodsof time.•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.•To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moistureiiiAdditional Manufacturer Warnings WARNING – Power SourcesDO NOT plug this apparatus into a power outlet that differs from the source indicated for safe use. If you don’t know the type of electrical power that is supplied to your home, please consult your local power company.WARNING – Cord SafetyA. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. When routing your Monster Reference Home Theater Music Power Amplifier AC power cord, do not place it near heavy foot traffic areas (e.g., hallways, doorways, and kitchen floors). Do not create a trip hazard with the power cord.B. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.C. Only use attachments/accessories specified by the manufacturer. WARNING – Grounding and PolarizationYour Monster Home Theater Music Reference Power Amplifier has a three-wire grounding-type AC plug (a three-prong outlet). This plug is designed to be inserted into a grounded outlet only.A. If this plug doesn’t fit your outlet, DO NOT attempt to force it.B. DO NOT attempt to defeat the grounding feature by using a 3-to-2 prong adapter. Instead, call a local electrician to install a properly grounded outlet. WARNING – Avoiding Electrical ShocksA. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink).B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit. WARNING – Exposure To HeatDo not block any ventilation openings. Install in accordance with the manufacturer’s instructions.Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat. Do not expose your Monster Home Theater Music Reference Power Amplifier to direct sunlight or place it near wall heaters, space heaters, or any enclosed space prone to temperature increase. Please see the section on installation for more information.If, for any reason, your Monster Home Theater Music Reference Power Amplifier is not operating properly, do not remove any part of the unit for repair. Unplug it and consult this owner’s manual for warranty and service information.1INTRODUCTIONDear Enthusiast:Thank you for purchasing my Signature Series Monster Home Theater Music Reference Power Amplifier. I started my Signature Series in 2002 by introducing special versions of the Monster Power Automatic Voltage Stabilizer 2000, Home Theater Power Source 7000 and Reference Home Theater PowerCenter 5100. Each of these products represented a breakthrough in performance and affordability and included special enhancements for audiophiles and videophiles who appreciate minute attention to detail and elegant design...all geared towards getting the most from their home theater system. Now I am introducing my signature line of Monster Reference Home Theater Music Power Amplifiers for those of you who are passionate about movies and music. I’ve spent years perfecting this design working with renowned audiophile designers Richard Marsh, Demian Martin and the other dedicated professionals at Monster. After countless hours of critical listening and dozens of prototype designs, we have finally completed an amplifier that is good enough to be part of The Head Monster’s Signature Series. The Home Theater Music amplifiers are designed to please the most demanding critical listeners...like me! I like to listen to music LOUD with all the complex harmonics and dynamic range reproduced as accurately as possible. I also like to watch movies and to have the power and responsiveness necessary to reproduce movie soundtracks from the subtlest rustle of leaves to the most violent explosions. It takes a very special amplifier design to satisfy the needs of both home theater and music.I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps.Monsterously,Noel LeeThe Head MonsterP.S. Here are some of the unique features of the Monster Home Theater Music Reference Power Amplifiers:MONSTER MIRRORED AMPLIFIER TECHNOLOGY™— (MMAT™)The MPA 2250 two channel, and MPA 3250 three channel amplifiers use a current-feedback topology we call MMAT™to ensure low distortion and greater clarity even at the highest playback levels. Any signal put into this amp will be mirroredat the output, just amplified, with all details intact. Monster amplifiers employ fully complimentary differential circuits, so the two halves of the amplifier are mirror images of themselves — helping lower noise and distortion.OTHER CIRCUIT INNOVATIONSAt the input end, a balanced complimentary push-pull stage delivers ultra-wide bandwidth performance for the best reproduction of today’s ultra high resolution 192khz DVD-Audio and Super Audio CD formats. Monster amplifiers are specially designed to be stable at high frequencies to support DVD-A and SACD.At the output end, high current MOSFET output transistors deliver instantaneous current for maximum transient impact. Monster amps provide high current peak delivery for a realistic, exciting home theater and music experience. of 37®Monster Home Theater MusicTwo Channel Reference Power AmplifierSignatureMPA 2250Owner’s ManualMonster Home Theater MusicThree Channel Reference Power AmplifierSignatureMPA 3250TABLE OF CONTENTSPageImportant Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8MPA 3250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MPA 2250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Amplifier Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Appendix A – System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B – Amplifier Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32IMPORTANT SAFETY INSTRUCTIONSPlease read and observe the following safety points at all times:•Read these instructions.•Keep these instructions.•Heed all warnings.•Follow all instructions.•Do not use this apparatus near water.•Clean only with dry cloth.•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.•Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat.•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has twoblades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. This plug is designed to be inserted into a grounded outlet only. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.•Only use attachments/accessories specified by the manufacturer.•Unplug this apparatus from its power source during lightning storms or when unused for long periodsof time.•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.•To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moistureiiiAdditional Manufacturer Warnings WARNING – Power SourcesDO NOT plug this apparatus into a power outlet that differs from the source indicated for safe use. If you don’t know the type of electrical power that is supplied to your home, please consult your local power company.WARNING – Cord SafetyA. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. When routing your Monster Reference Home Theater Music Power Amplifier AC power cord, do not place it near heavy foot traffic areas (e.g., hallways, doorways, and kitchen floors). Do not create a trip hazard with the power cord.B. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.C. Only use attachments/accessories specified by the manufacturer. WARNING – Grounding and PolarizationYour Monster Home Theater Music Reference Power Amplifier has a three-wire grounding-type AC plug (a three-prong outlet). This plug is designed to be inserted into a grounded outlet only.A. If this plug doesn’t fit your outlet, DO NOT attempt to force it.B. DO NOT attempt to defeat the grounding feature by using a 3-to-2 prong adapter. Instead, call a local electrician to install a properly grounded outlet. WARNING – Avoiding Electrical ShocksA. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink).B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit. WARNING – Exposure To HeatDo not block any ventilation openings. Install in accordance with the manufacturer’s instructions.Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat. Do not expose your Monster Home Theater Music Reference Power Amplifier to direct sunlight or place it near wall heaters, space heaters, or any enclosed space prone to temperature increase. Please see the section on installation for more information.If, for any reason, your Monster Home Theater Music Reference Power Amplifier is not operating properly, do not remove any part of the unit for repair. Unplug it and consult this owner’s manual for warranty and service information.1INTRODUCTIONDear Enthusiast:Thank you for purchasing my Signature Series Monster Home Theater Music Reference Power Amplifier. I started my Signature Series in 2002 by introducing special versions of the Monster Power Automatic Voltage Stabilizer 2000, Home Theater Power Source 7000 and Reference Home Theater PowerCenter 5100. Each of these products represented a breakthrough in performance and affordability and included special enhancements for audiophiles and videophiles who appreciate minute attention to detail and elegant design...all geared towards getting the most from their home theater system. Now I am introducing my signature line of Monster Reference Home Theater Music Power Amplifiers for those of you who are passionate about movies and music. I’ve spent years perfecting this design working with renowned audiophile designers Richard Marsh, Demian Martin and the other dedicated professionals at Monster. After countless hours of critical listening and dozens of prototype designs, we have finally completed an amplifier that is good enough to be part of The Head Monster’s Signature Series. The Home Theater Music amplifiers are designed to please the most demanding critical listeners...like me! I like to listen to music LOUD with all the complex harmonics and dynamic range reproduced as accurately as possible. I also like to watch movies and to have the power and responsiveness necessary to reproduce movie soundtracks from the subtlest rustle of leaves to the most violent explosions. It takes a very special amplifier design to satisfy the needs of both home theater and music.I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps.Monsterously,Noel LeeThe Head MonsterP.S. Here are some of the unique features of the Monster Home Theater Music Reference Power Amplifiers:MONSTER MIRRORED AMPLIFIER TECHNOLOGY™— (MMAT™)The MPA 2250 two channel, and MPA 3250 three channel amplifiers use a current-feedback topology we call MMAT™to ensure low distortion and greater clarity even at the highest playback levels. Any signal put into this amp will be mirroredat the output, just amplified, with all details intact. Monster amplifiers employ fully complimentary differential circuits, so the two halves of the amplifier are mirror images of themselves — helping lower noise and distortion.OTHER CIRCUIT INNOVATIONSAt the input end, a balanced complimentary push-pull stage delivers ultra-wide bandwidth performance for the best reproduction of today’s ultra high resolution 192khz DVD-Audio and Super Audio CD formats. Monster amplifiers are specially designed to be stable at high frequencies to support DVD-A and SACD.At the output end, high current MOSFET output transistors deliver instantaneous current for maximum transient impact. Monster amps provide high current peak delivery for a realistic, exciting home theater and music experience.

Monster Power HTPS 7000 power conditioner. Designed by Richard Marsh and Noel Lee. Im the original owner. Unit is in very nice shape. Unit works as it should. The power cord was originally 8 long; which was much too long for my application. I cut the power cord down to 3. With original boxes and manual. Shipping in the continental US via UPS. No international shipping.

Monster Power Conditioner HTPS 7000 Home Theatre Surge Protector PowerSource. Tested and working. A few cosmetic defects. Please see pictures for details

You read that right - item is brand new in the box and has been in a storage unit for over a decade. Purchased new at the long-defunct magnolia Hi-Fi of Bellevue, WA. Please look at my other auctions for more NOS items, including McIntosh components. Monster Home Theatre Power Source HTPS7000 Provides Balanced Power and Ultimate Power Conditioning for the Best Possible Home Theatre Performance HTPS7000 employs cutting edge technology to perform the difficult task of balancing the power used by your home theater system. There are some scratches on top of the case, front panel is clean, please take a look at the pictures and see what you think. Very heavy piece, 44 pounds. Shipping will be $95 lower 48, Insured and packed properly. If you have any Questions, please email. Thanks.Features: Data Line Protection, With Surge ProtectionNumber of Outlets: 12 outletsStyle: Wall TapSurge Rating: 3,145 joulesDimensions & WeightWidth · Depth · Height · WeightWidth17 inDepth14.3 inHeight5.7 inWeight 44.09 lbs.GeneralDevice Type Surge protector - external Included A/C Power cable - integrated - 8 ft Features Audible alarm, LED display, voltage monitoringPower DeviceLoad Rating Home theater systemInput Voltage AC 120 VDataline Surge Protection Phone line - RJ-11 Cable TV Satellite AntennaSurge Suppression YesSurge Energy Rating 3145 JoulesCircuit Protection Circuit breaker

Monster Power Signature Series Home Theatre Reference Power-source. The HTPS 7000 is both a power conditioner and 3145 joule rated surge protector built into one. It is like new condition. Fully tested it works great as you can see in the picturesThe Clean Power Stage 5 provides the connected components with both isolation and filtration through 5 discrete filters, (with an extra pair on the digital inputs) to effectively eliminate line-borne noise anomalies and prevent components in the system from potentially contaminating one another. Whereas some line conditioners only treat power coming in, this still leaves the door open to cross contamination when power is coming back out. The HTPS 7000 eliminates this probability by isolating components. The front displays are dimmable. Comes with box only what you see is what you will get. of 37®Monster Home Theater MusicTwo Channel Reference Power AmplifierSignatureMPA 2250Owner’s ManualMonster Home Theater MusicThree Channel Reference Power AmplifierSignatureMPA 3250TABLE OF CONTENTSPageImportant Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8MPA 3250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MPA 2250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Amplifier Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Appendix A – System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B – Amplifier Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32IMPORTANT SAFETY INSTRUCTIONSPlease read and observe the following safety points at all times:•Read these instructions.•Keep these instructions.•Heed all warnings.•Follow all instructions.•Do not use this apparatus near water.•Clean only with dry cloth.•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.•Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat.•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has twoblades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. This plug is designed to be inserted into a grounded outlet only. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.•Only use attachments/accessories specified by the manufacturer.•Unplug this apparatus from its power source during lightning storms or when unused for long periodsof time.•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.•To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moistureiiiAdditional Manufacturer Warnings WARNING – Power SourcesDO NOT plug this apparatus into a power outlet that differs from the source indicated for safe use. If you don’t know the type of electrical power that is supplied to your home, please consult your local power company.WARNING – Cord SafetyA. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. When routing your Monster Reference Home Theater Music Power Amplifier AC power cord, do not place it near heavy foot traffic areas (e.g., hallways, doorways, and kitchen floors). Do not create a trip hazard with the power cord.B. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.C. Only use attachments/accessories specified by the manufacturer. WARNING – Grounding and PolarizationYour Monster Home Theater Music Reference Power Amplifier has a three-wire grounding-type AC plug (a three-prong outlet). This plug is designed to be inserted into a grounded outlet only.A. If this plug doesn’t fit your outlet, DO NOT attempt to force it.B. DO NOT attempt to defeat the grounding feature by using a 3-to-2 prong adapter. Instead, call a local electrician to install a properly grounded outlet. WARNING – Avoiding Electrical ShocksA. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink).B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit. WARNING – Exposure To HeatDo not block any ventilation openings. Install in accordance with the manufacturer’s instructions.Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat. Do not expose your Monster Home Theater Music Reference Power Amplifier to direct sunlight or place it near wall heaters, space heaters, or any enclosed space prone to temperature increase. Please see the section on installation for more information.If, for any reason, your Monster Home Theater Music Reference Power Amplifier is not operating properly, do not remove any part of the unit for repair. Unplug it and consult this owner’s manual for warranty and service information.1INTRODUCTIONDear Enthusiast:Thank you for purchasing my Signature Series Monster Home Theater Music Reference Power Amplifier. I started my Signature Series in 2002 by introducing special versions of the Monster Power Automatic Voltage Stabilizer 2000, Home Theater Power Source 7000 and Reference Home Theater PowerCenter 5100. Each of these products represented a breakthrough in performance and affordability and included special enhancements for audiophiles and videophiles who appreciate minute attention to detail and elegant design...all geared towards getting the most from their home theater system. Now I am introducing my signature line of Monster Reference Home Theater Music Power Amplifiers for those of you who are passionate about movies and music. I’ve spent years perfecting this design working with renowned audiophile designers Richard Marsh, Demian Martin and the other dedicated professionals at Monster. After countless hours of critical listening and dozens of prototype designs, we have finally completed an amplifier that is good enough to be part of The Head Monster’s Signature Series. The Home Theater Music amplifiers are designed to please the most demanding critical listeners...like me! I like to listen to music LOUD with all the complex harmonics and dynamic range reproduced as accurately as possible. I also like to watch movies and to have the power and responsiveness necessary to reproduce movie soundtracks from the subtlest rustle of leaves to the most violent explosions. It takes a very special amplifier design to satisfy the needs of both home theater and music.I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps.Monsterously,Noel LeeThe Head MonsterP.S. Here are some of the unique features of the Monster Home Theater Music Reference Power Amplifiers:MONSTER MIRRORED AMPLIFIER TECHNOLOGY™— (MMAT™)The MPA 2250 two channel, and MPA 3250 three channel amplifiers use a current-feedback topology we call MMAT™to ensure low distortion and greater clarity even at the highest playback levels. Any signal put into this amp will be mirroredat the output, just amplified, with all details intact. Monster amplifiers employ fully complimentary differential circuits, so the two halves of the amplifier are mirror images of themselves — helping lower noise and distortion.OTHER CIRCUIT INNOVATIONSAt the input end, a balanced complimentary push-pull stage delivers ultra-wide bandwidth performance for the best reproduction of today’s ultra high resolution 192khz DVD-Audio and Super Audio CD formats. Monster amplifiers are specially designed to be stable at high frequencies to support DVD-A and SACD.At the output end, high current MOSFET output transistors deliver instantaneous current for maximum transient impact. Monster amps provide high current peak delivery for a realistic, exciting home theater and music experience. of 37®Monster Home Theater MusicTwo Channel Reference Power AmplifierSignatureMPA 2250Owner’s ManualMonster Home Theater MusicThree Channel Reference Power AmplifierSignatureMPA 3250TABLE OF CONTENTSPageImportant Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8MPA 3250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MPA 2250 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Amplifier Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Appendix A – System Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B – Amplifier Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32IMPORTANT SAFETY INSTRUCTIONSPlease read and observe the following safety points at all times:•Read these instructions.•Keep these instructions.•Heed all warnings.•Follow all instructions.•Do not use this apparatus near water.•Clean only with dry cloth.•Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.•Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat.•Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has twoblades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. This plug is designed to be inserted into a grounded outlet only. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.•Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.•Only use attachments/accessories specified by the manufacturer.•Unplug this apparatus from its power source during lightning storms or when unused for long periodsof time.•Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.•To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moistureiiiAdditional Manufacturer Warnings WARNING – Power SourcesDO NOT plug this apparatus into a power outlet that differs from the source indicated for safe use. If you don’t know the type of electrical power that is supplied to your home, please consult your local power company.WARNING – Cord SafetyA. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the point where they exit from the apparatus. When routing your Monster Reference Home Theater Music Power Amplifier AC power cord, do not place it near heavy foot traffic areas (e.g., hallways, doorways, and kitchen floors). Do not create a trip hazard with the power cord.B. Since the power cord is the method of connection and disconnection to AC mains supply, it must remain readily operable to provide a means of disconnection.C. Only use attachments/accessories specified by the manufacturer. WARNING – Grounding and PolarizationYour Monster Home Theater Music Reference Power Amplifier has a three-wire grounding-type AC plug (a three-prong outlet). This plug is designed to be inserted into a grounded outlet only.A. If this plug doesn’t fit your outlet, DO NOT attempt to force it.B. DO NOT attempt to defeat the grounding feature by using a 3-to-2 prong adapter. Instead, call a local electrician to install a properly grounded outlet. WARNING – Avoiding Electrical ShocksA. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink).B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit. WARNING – Exposure To HeatDo not block any ventilation openings. Install in accordance with the manufacturer’s instructions.Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that product heat. Do not expose your Monster Home Theater Music Reference Power Amplifier to direct sunlight or place it near wall heaters, space heaters, or any enclosed space prone to temperature increase. Please see the section on installation for more information.If, for any reason, your Monster Home Theater Music Reference Power Amplifier is not operating properly, do not remove any part of the unit for repair. Unplug it and consult this owner’s manual for warranty and service information.1INTRODUCTIONDear Enthusiast:Thank you for purchasing my Signature Series Monster Home Theater Music Reference Power Amplifier. I started my Signature Series in 2002 by introducing special versions of the Monster Power Automatic Voltage Stabilizer 2000, Home Theater Power Source 7000 and Reference Home Theater PowerCenter 5100. Each of these products represented a breakthrough in performance and affordability and included special enhancements for audiophiles and videophiles who appreciate minute attention to detail and elegant design...all geared towards getting the most from their home theater system. Now I am introducing my signature line of Monster Reference Home Theater Music Power Amplifiers for those of you who are passionate about movies and music. I’ve spent years perfecting this design working with renowned audiophile designers Richard Marsh, Demian Martin and the other dedicated professionals at Monster. After countless hours of critical listening and dozens of prototype designs, we have finally completed an amplifier that is good enough to be part of The Head Monster’s Signature Series. The Home Theater Music amplifiers are designed to please the most demanding critical listeners...like me! I like to listen to music LOUD with all the complex harmonics and dynamic range reproduced as accurately as possible. I also like to watch movies and to have the power and responsiveness necessary to reproduce movie soundtracks from the subtlest rustle of leaves to the most violent explosions. It takes a very special amplifier design to satisfy the needs of both home theater and music.I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps.Monsterously,Noel LeeThe Head MonsterP.S. Here are some of the unique features of the Monster Home Theater Music Reference Power Amplifiers:MONSTER MIRRORED AMPLIFIER TECHNOLOGY™— (MMAT™)The MPA 2250 two channel, and MPA 3250 three channel amplifiers use a current-feedback topology we call MMAT™to ensure low distortion and greater clarity even at the highest playback levels. Any signal put into this amp will be mirroredat the output, just amplified, with all details intact. Monster amplifiers employ fully complimentary differential circuits, so the two halves of the amplifier are mirror images of themselves — helping lower noise and distortion.OTHER CIRCUIT INNOVATIONSAt the input end, a balanced complimentary push-pull stage delivers ultra-wide bandwidth performance for the best reproduction of today’s ultra high resolution 192khz DVD-Audio and Super Audio CD formats. Monster amplifiers are specially designed to be stable at high frequencies to support DVD-A and SACD.At the output end, high current MOSFET output transistors deliver instantaneous current for maximum transient impact. Monster amps provide high current peak delivery for a realistic, exciting home theater and music experience.