Parasound A21 + Stereo Power Amplifier; Black Product SpecsPower Output – Stereo Mode300 watts x 2, 8? both channels driven500 watts x 2, 4? both channels drivenPower Output – Bridged Mode1000 watts x 1, 8?Bridged 4 ? operation is not recommendedPower measurement are at 120 VAC: 0.1% THD, RMS continuous power, full audio band (20 Hz - 20 kHz)Current Capacity60 amps peak, per channelSlew Rate> 130 volts per microsecondFrequency Response5Hz - 100kHz, +0/-3dB 20Hz - 20kHz, +0/-0.25dBTotal Harmonic Distortion (THD)< 0.1% at full power< 0.03% at typical listening levelsIM Distortion< 0.04%TIMUnmeasurableInterchannel Crosstalk> 80dB at 1kHz> 70dB at 20kHzInput ImpedanceUnbalanced: 33k?Balanced: 66k?,(33k? per leg)Total Gain29dBInput Sensitivity for 28.28V Output into 8 ?Unbalanced: 1 VBalanced: 1V per legS/N Ratio> 115dB, input shorted, IHF A-weighted> 110dB, input shorted, unweightedDamping Factor> 1100 at 20 HzDC Trigger Requirements+9 Vdc to +12 Vdc, 5 mAAudio Trigger Requirements2 mV - 10 mVXLR Pin Identification1 = Ground (Shield)2 = Positive3 = Negative (Return)PhysicalWidth: 17-5/8Height without feet: 7-1/8Height with feet: 7-3/4Depth: 20Depth with cables: 21-1/2Weight: 71 lbs.Power RequirementStandby: 1 WattIdle (no music playing): 160 WattsTypical Listening levels: 300 WattsMaximum: 1400 WattsProduct FeaturesA21+ Performance UpgradesPower up 25-30%Filter capacitance up 20-30%10-15% Larger main power transformerUpgraded internal gold on gold audio connections (cleaner signal path and more reliable)Tweaked input circuits for Improved Crosstalk specsImproved power supply for lower distortion at full powerFilter capacitance: 108,000 uFTransformer size: 1.3 kVARevised Halo Front Panel CosmeticsSlim metal end caps replace wider plastic end capsAdded gold metallic accent stripe along end capEngraved metal PARASOUND badge replaces the red PGold feet now on black unitsRevised Rear Panel Layout and FeaturesUpgraded speaker terminals (A21+ gets JC5 terminals)New jack/terminal layout with more space and more clear text/labels2.5mm trigger jacks replaced with 3.5mm jacksAudio trigger circuit has been updated for better low signal reliabilityMaster AC “vacation” switch on the rear panel

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Parasound A21 Stereo Power Amplifier; Black Product SKU: 51677 Voltage: 120V # of Owners: 1 Service History: None Serial Number: 06344 Age: 5 years Tobacco Exposure: No MSRP: $2495 Cosmetic Description: Very good condition with minimal visible cosmetic wear including a tiny chip in the P logo on the faceplate and a minuscule nick on the top right corner of the faceplate. Outstanding condition overall - the condition will please even the most discerning audiophile. What is Included: Amplifier, Rack ears, Power trigger cable, Power cable, Manual, Factory packaging Other Notes: Parasound Halo Series A 21 power amplifier presents the latest advancements in amplifier technology. The A 21 is built to the strict quality and performance standards set by Parasound. We’re proud to offer you this exceptional audio component that will bring you many years of enjoyment and dependability. - Parasound Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $135- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

Parasound Halo A21+ Stereo Power Amplifier (Black) 2x300W 8 Ohm in absolutely new condition with full package and accessories. 2 pcs are available. One unit is still sealed. The second was opened for a short demo but it is also absolutely brand new. Retail price: 5999 euro for each. Shipping via courier on the pallet. Transit time 5-7 working days. Offers are welcome. Changes from the original A 21?A 21+250 ? 300 Watts (8?)400 ? 500 Watts (4?)750 ? 1000 Watts (bridged)Filter cap: 88,000 uF ? 108,000 uFS/N: 112dB ? 115 dBTHD (at full power): 0.2% ? 0.1%Crosstalk (20kHz): 63dB ? 70dBTransformer size: 1.2 kVA ? 1.3 kVAWeight: 60 LB ? 71 LBRefined Halo cosmetic with aluminum end caps & gold highlightsUpdated rear panel with heavy duty speaker terminals from JC 5Upgraded internal gold on gold audio connectionsUpdated auto turn on circuitAll Features300 watts x 2 @ 8 ? RMS, both channels driven500 watts x 2 @ 4 ? RMS, both channels driven1000 watts x 1 @ 8 ?, in bridged modeCircuitry designed by legendary John CurlHigh bias Class A/AB operation60 amperes peak current per channelStable with speaker impedance dips to 1.5 ?Balanced inputs with discrete circuitsCHK Infinium, custom 5-way speaker binding postsGold-plated RCA input & loop output jacksDirect-coupled signal path, no capacitors or inductorsDC Servo and relay protection circuitsAC turn-on inrush surge protection with relay bypassJFET input stage, MOSFET driver stage16 beta-matched 15 ampere, 60 MHz bipolar output transistors1.3 kVA shielded toroid transformer w/ independent windings for each channelIndependent power supplies for input stage, driver stage and output stage108,000 µF filter capacitors for output stagesFull power is rated all the way down to 5Hz for unrestricted low-end bassHarris hyper-fast soft-recovery bridge diode rectifiersAutomatic turn-on by 12 V trigger or audio sensing4 rack space chassis with rear carry handlesRack mount hardware is includedAvailable in silver or black

Parasound A21+ Open Box - Pictures are stock photos of unit. Unit is currently in original box ready to be shipped to you! Stereo Power Amplifier. The 21+ has two channels providing 250 watts per channel into 8 ?, it delivers breathtaking audio performance. Brand new in factory sealed box. Regular Retail - $3,999.99 A21+ Tech SpecsPower Output – Stereo Mode (0.1% THD)300 watts x 2, 8 ? both channels driven500 watts x 2, 4 ? both channels drivenPower Output – Bridged Mode (0.1% THD)1000 watts x 1, 8 ?Bridged 4 ? operation is not recommendedPower measurement are at 120 VAC:0.1% THD, RMS continuous power,full audio band (20 Hz - 20 kHz)Current Capacity60 amps peak, per channelSlew Rate> 130 volts per microsecondFrequency Response5 Hz - 100 kHz, +0/-3 dB20 Hz - 20 kHz, +0/-0.25 dBTotal Harmonic Distortion (THD)< 0.1 % at full power< 0.03 % at typical listening levelsIM Distortion< 0.04 %TIMUnmeasurableInter-channel Crosstalk> 80 dB at 1 kHz> 70 dB at 20 kHzInput ImpedanceUnbalanced: 33 k?Balanced: 66 k?,(33 k? per leg)Total Gain29 dBInput Sensitivity for 28.28 V Output into 8 ?Unbalanced: 1 VBalanced: 1 V per legS/N Ratio> 115 dB, input shorted, IHF A-weighted> 110 dB, input shorted, unweightedDamping Factor> 1100 at 20 HzDC Trigger Requirements+9 Vdc to +12 Vdc, 5 mAAudio Trigger Requirements2 mV - 10 mVXLR Pin Identification1 = Ground (Shield)2 = Positive3 = Negative (Return)DimensionsWidth: 17-5/8 (448 mm)Height without feet: 7-1/8 (181 mm)Height with feet: 7-3/4 (197 mm)Depth: 20 (508 mm)Depth with cables: 21-1/2 (546 mm)Net Weight71 lb. (32.2 kg)Shipping Weight88 lb. (39.9 kg)Power RequirementStandby: 1 WattIdle (no music playing): 160 WattsTypical Listening levels: 300 WattsMaximum: 1400 Watts

Experience high-quality sound with this Parasound A21+ power amplifier. This versatile amplifier is perfect for any music lover seeking an exceptional audio experience. The amplifier features XLR audio inputs and delivers an outstanding performance with its 2-channel setup. The amplifier is designed to meet the needs of music enthusiasts who demand the very best in sound quality. It is a perfect fit for any home audio setup and can be used for a wide range of applications. Get ready to experience the very best in audio with this powerful Parasound A21+ power amplifier. Original non-smoking owner. Lightly used, all original packaging and accessories. Like new condition - 9/10.

Experience high-quality sound with this Parasound A21+ power amplifier. This versatile amplifier is perfect for any music lover seeking an exceptional audio experience. The amplifier features XLR audio inputs and delivers an outstanding performance with its 2-channel setup. The amplifier is designed to meet the needs of music enthusiasts who demand the very best in sound quality. It is a perfect fit for any home audio setup and can be used for a wide range of applications. Get ready to experience the very best in audio with this powerful Parasound A21+ power amplifier. Original non-smoking owner. Lightly used, all original packaging and accessories. Like new condition - 9/10.

Parasound Halo A21 2ch power amplifier. Circuitry designed by legendary John Curl THX Ultra2 certified High bias Class A/AB operation Balanced inputs with discrete circuits and XLR connectors Direct Coupled - no capacitors or inductors in signal path Complementary MOSFET driver stage and JFET input stage 16 beta-matched 15 amp, 60 MHz bipolar output transistors 1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel 88,000 µF power supply filter capacitance DC Servo and relay protection circuits AC present, channel status, high temperature indicators Heavy-duty 24k gold-plated 5-way speaker terminals Gold-plated RCA input jacks; ground lift switch Auto turn-on by 12v trigger or audio signal, 12v trigger out Continuous power output: 250 watts RMS x 2, 20 Hz - 20 kHz, 8 ?, all channels driven 400 watts RMS x 2, 20 Hz - 20 kHz, 4 ?, all channels driven 750 watts RMS x 1, 20 Hz - 20 kHz, 8 ? Current capacity: 60 amperes peak per channel Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion: < 0.2 % at full power IM distortion: balanced 16 V rms < 0.04 % Slew rate: > 130 V/µsecond Dynamic headroom: > 1.5 dB Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHz Input sensitivity: 1 V for 28.28 V, THX Reference Level Input impedance: 33 k ? unbalanced; 66 k ? balanced S/N ratio: 112 dB, input shorted, IHF A-weighted Damping factor: > 1100 at 20 Hz Voltage: 110V - 120V Dimensions: 17-1/2 w x 7-5/8 h x 20 d, 7 h without feet Net weight: 60 lb.

The worlds largest online retailer of pre-owned audio Product DescriptionWho we areWhat we doOur ProcessOur Policies Parasound Halo A21 Stereo Power Amplifier; Silver Product SKU: 49003 Voltage: 120V # of Owners: Unknown Service History: None Serial Number: 05390 Age: Unknown Tobacco Exposure: No MSRP: $2000 Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including a nick on the top edge of the faceplate. The front-right corner of the top surface has a scuff as well. This item does show a few blemishes but is attractive overall and has been well cared for. What is Included: Amplifier, Manual, Rack mounting hardware, Two trigger cables, Power cable, Factory packaging Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Shipping: Cost to ship this item within the contiguous United States is a flat rate of $105- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery. Your online source for the best value in new and used audio gear. Visit us online to Buy / Sell / Trade / Consign The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers - all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry - period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. Visit us online to Buy / Sell / Trade / Consign Buy: Are you looking to get a fair price for your used home audio equipment without all the hassles, headaches, risks and fees? We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our “get a quote” form on our homepage to start the process. Sell: We sell in multiple online venues with many (but not all) of our products available in our eBay store. Everything is quality-assured and backed by our best-in-class, satisfaction-guaranteed return policy. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and we’ll get you the best possible trade-in allowance. We can even assist with shipping & logistics from anywhere in the USA. Just fill out our “get a quote” form on our homepage to start the process. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. We’ll handle every step of the process from shipping to appraisals, customer service, fulfillment, and returns: Industry-low rates with no hidden fees Leverage our world-class reputation and get exposure in multiple sales venues - putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that we’ve got your back. Visit us online to Buy / Sell / Trade / Consign Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. We understand that buying used audio equipment can be rife with uncertainty and unexpected headaches. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order - exactly as described 100% of the time. Support: We don’t just make promises. We stand behind them - your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, it’s important to stretch your limited budget as far as possible. Used equipment sells for a fraction of new prices, and with a partner like The Music Room you can upgrade any time you like and get most of your money back. There’s simply no better way to maximize a limited audio budget. Packaging: We’ve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Most importantly, this system provides our customers with a re-usable shipping box which increases the resale value of the product and provides a shipping method for easy, secure returns. Be seen by over 70,000 monthly visitors. Visit us online to Buy / Sell / Trade / Consign Payment: Prompt payment is expected. Paypal is preferred but all forms of payment are accepted. Unpaid item case will be opened after 3 days if no payment received. Shipping Times: Most Domestic orders ship within 1 business day of purchase. For International orders or freight shipments, please allow 2-3 business days. In all cases, tracking information will be emailed to you at the moment the shipping label is created. If you cant find it or have other questions about shipping & logistics, please contact us. Shipping Costs: Flat rate shipping costs are applicable within the contiguous 48 States (USA). These rates are clearly posted on each product page. For an International or custom quote (including Hawaii, PR, AK) please contact us. Returns: Every purchase made on eBay carries a 30-day, satisfaction-guaranteed return policy. If youre not happy with your purchase for any reason or if youve simply changed your mind... no problem. Simply ship it back for a full refund or exchange (minus S&H costs). If you have received an item that is defective in some way, we will make it right. Let us know - we will pay for return shipping and repair the item or refund 100% of your original purchase price.

Experience high-quality sound with this Parasound A21+ power amplifier. This versatile amplifier is perfect for any music lover seeking an exceptional audio experience. The amplifier features XLR audio inputs and delivers an outstanding performance with its 2-channel setup. The amplifier is designed to meet the needs of music enthusiasts who demand the very best in sound quality. It is a perfect fit for any home audio setup and can be used for a wide range of applications. Get ready to experience the very best in audio with this powerful Parasound A21+ power amplifier. Original non-smoking owner. Lightly used, all original packaging and accessories. Like new condition - 9/10.

Elevate your audio experience with the Parasound A21+ Power Amplifier. This top-of-the-line amplifier boasts exceptional sound quality and a sleek design that will seamlessly blend into any home audio system. With its two channels and XLR audio inputs, you can enjoy your music with unparalleled clarity and power. The A21+ is manufactured by Parasound, a trusted brand known for their high-quality audio equipment. Its model is the A21+ and it falls under the categories of Consumer Electronics, TV, Video & Home Audio, Home Audio, Receivers & Amplifiers, and Amplifiers & Preamps. Don't settle for less when it comes to your audio needs. Upgrade to the Parasound A21+ Power Amplifier today.

Experience high-quality sound with this Parasound A21+ power amplifier. This versatile amplifier is perfect for any music lover seeking an exceptional audio experience. The amplifier features XLR audio inputs and delivers an outstanding performance with its 2-channel setup. The amplifier is designed to meet the needs of music enthusiasts who demand the very best in sound quality. It is a perfect fit for any home audio setup and can be used for a wide range of applications. Get ready to experience the very best in audio with this powerful Parasound A21+ power amplifier. Original non-smoking owner. Lightly used, all original packaging and accessories. Like new condition - 9/10.

Experience high-quality sound with this Parasound A21+ power amplifier. This versatile amplifier is perfect for any music lover seeking an exceptional audio experience. The amplifier features XLR audio inputs and delivers an outstanding performance with its 2-channel setup. The amplifier is designed to meet the needs of music enthusiasts who demand the very best in sound quality. It is a perfect fit for any home audio setup and can be used for a wide range of applications. Get ready to experience the very best in audio with this powerful Parasound A21+ power amplifier. Original non-smoking owner. Lightly used, all original packaging and accessories. Like new condition - 9/10.

Experience high-quality sound with this Parasound A21+ power amplifier. This versatile amplifier is perfect for any music lover seeking an exceptional audio experience. The amplifier features XLR audio inputs and delivers an outstanding performance with its 2-channel setup. The amplifier is designed to meet the needs of music enthusiasts who demand the very best in sound quality. It is a perfect fit for any home audio setup and can be used for a wide range of applications. Get ready to experience the very best in audio with this powerful Parasound A21+ power amplifier. Original non-smoking owner. Lightly used, all original packaging and accessories. Like new condition - 9/10.

HelloIm selling my mint condition Parasound A21+. Im the original owner and have purchased a different amplifier. I purchased this amplifier from Audio Advisor, and picked it up in person. I bought the amp in May of 2021. I really didnt start to listen to it on a weekly basis until November of 2021. I averaged about 12-15 hours a week, but at times not even firing it up for a week or two at a time. As you can see from the box, that I believe this amp was shipped via freight from the west coast and the box is in mint condition. One corner is dinged up, but these are boxed so good that it really amounted to nothing. I believe that the original condition of the box might be important to a potential buyer as this amp didnt get banged around (although they can take it) and really was in killer shape basically from Taiwan. I listen to 98 percent classical music and NEVER exceed 80db. I never could have listened louder if I wanted to. My room is pretty small. As Vilip has said from the YouTube channel (Audio Excellence Canada) if you have never heard something of this caliber, its a revelation. The A21+ is the deal of the century (not quite so much now that theyre $4000.00) but this amp really is killer. Great bass and great bass control, 6 watts of class A (if you listen at normal levels youll be in pure class A) very balanced in the frequencies, detailed highs. Airy and a sense of spatial information i.e venue. Ive taken very good care of this amp, and it should provide many years of great listening sessions. If you are coming from a bit of a distance, youre more than welcome to pick it up on a weekend. Keep in mind that you will have to buy a pre-amp. Really guys, if you are coming from say a $1000.00-$1500.00 amp you will be blown away. It is a neutral amplifier. If you have any questions, please feel free to reach out to me. Thank youDave

Parasound A21 2 Channel Power Amplifier Black: Operated in a professional audio rack with AC Infinity cooling fans. Includes power cord and factory Parasound box. Pictures are of actual amplifier. Serial# 06740.SPECIFICATIONS: Circuitry designed by legendary John CurlTHX Ultra2 certifiedHigh bias Class A/AB operationBalanced inputs with discrete circuits and XLR connectorsDirect Coupled - no capacitors or inductors in signal pathComplementary MOSFET driver stage and JFET input stage16 beta-matched 15 amp, 60 MHz bipolar output transistors1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel88,000 µF power supply filter capacitanceDC Servo and relay protection circuitsAC present, channel status, high temperature indicatorsHeavy-duty 24k gold-plated 5-way speaker terminalsGold-plated RCA input jacks; ground lift switchAuto turn-on by 12v trigger or audio signal, 12v trigger outContinuous power output: 250 watts RMS x 2, 20 Hz - 20 kHz, 8 ?, all channels driven 400 watts RMS x 2, 20 Hz - 20 kHz, 4 ?, all channels driven 750 watts RMS x 1, 20 Hz - 20 kHz, 8 ?Current capacity: 60 amperes peak per channelPower bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 wattTotal harmonic distortion: < 0.2 % at full powerIM distortion: balanced 16 V rms < 0.04 %Slew rate: > 130 V/µsecondDynamic headroom: > 1.5 dB Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHzInput sensitivity: 1 V for 28.28 V, THX Reference LevelInput impedance: 33 k ? unbalanced; 66 k ? balancedS/N ratio: 112 dB, input shorted, IHF A-weightedContinuous power output: 250 watts RMS x 2, 20 Hz - 20 kHz, 8 ?, all channels driven 400 watts RMS x 2, 20 Hz - 20 kHz, 4 ?, all channels driven 750 watts RMS x 1, 20 Hz - 20 kHz, 8 ?Current capacity: 60 amperes peak per channelPower bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 wattTotal harmonic distortion: < 0.2 % at full powerIM distortion: balanced 16 V rms < 0.04 %Slew rate: > 130 V/µsecondDynamic headroom: > 1.5 dB Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHzInput sensitivity: 1 V for 28.28 VTHX Reference LevelInput impedance: 33 k ? unbalanced66 k ? balancedS/N ratio: 112 dB

Parasound A21 Stereo Power Amplifier; Black.

parasound A21 power amplifier and P3 pre amplifier. This combo is absolutely brilliant. The sound is amazing with loads of power. Comes with original remote, upgraded power lead and balanced cables and some really thick speaker cable (probably 1” thick easy ) it wasn’t cheep with terminals on both end but will only give away if full asking price is received. Cash or bacs only. Will demo no problem The only marks are on the power amp left hand grill at the rear . Only selling due to downsizing or I would keep. Pick up only due the the weight

Parasound CA215 2-Chanel Amplifier 15W/Chanel Tested and works fine with some tactic when turning the volume up and down. In fair cosmetic condition with scratches, some stains, some dust.

Parasound Halo A21 Power Amplifier - Black I have had this amp for a few years and has been used at most once every couple months to power my front channels. The amplifier has remained in my rack since purchased. There are very light scratches on a few of the fins from the initial placement of the amp in the rack, but is sonically perfect. Circuitry designed by legendary John CurlTHX Ultra2 certifiedHigh bias Class A/AB operationBalanced inputs with discrete circuits and XLR connectorsDirect Coupled - no capacitors or inductors in signal pathComplementary MOSFET driver stage and JFET input stage16 beta-matched 15 amp, 60 MHz bipolar output transistors1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel88,000 µF power supply filter capacitanceDC Servo and relay protection circuitsAC present, channel status, high temperature indicatorsHeavy-duty 24k gold-plated 5-way speaker terminalsGold-plated RCA input jacks; ground lift switchAuto turn-on by 12v trigger or audio signal, 12v trigger out4u Chassis, carry handles, rack mounting adapter includedContinuous power output:250 watts RMS x 2, 20 Hz - 20 kHz, 8 ?, all channels driven400 watts RMS x 2, 20 Hz - 20 kHz, 4 ?, all channels driven750 watts RMS x 1, 20 Hz - 20 kHz, 8 ?Current capacity:60 amperes peak per channelPower bandwidth:5 Hz - 100 kHz, +0/-3 dB at 1 wattTotal harmonic distortion:< 0.2 % at full powerIM distortion: balanced 16 V rms< 0.04 %Slew rate:> 130 V/µsecondDynamic headroom:> 1.5 dB Interchannel crosstalk:> 80 dB at 1 kHz;> 63 dB at 20 kHzInput sensitivity:1 V for 28.28 V, THX Reference LevelInput impedance:33 k ? unbalanced; 66 k ? balancedS/N ratio:112 dB, input shorted, IHF A-weightedDamping factor:> 1100 at 20 HzVoltage:110V - 120VDimensions:17-1/2 w x 7-5/8 h x 20 d, 7 h without feetNet weight: 60 lb.

Parasound Halo A21, 2/1 Halo Power Amplifier-Class A/AB250Wx2 or 750Wx1 @ 8?, Excellent Condition We recently emptied out yet another Consumer Electronics Collectors Home! Once again what we found was of treasure trove of new, vintage, used electronics products, and installation parts they had collected over the years. Our find is your treasure. This product is one of those treasures.The legendary John Curls creation has stood the test of time...and she sounds and looks as nice as the day it came out of the box!With class A/AB design, Mr Curls A21 impresses even the most finicky audiophiles: 250w x 2 or 750W x 1, 20-20K Hz, .2% THD, at 8?.-all channel driven!We have sold many these over the years...they never stay posted long...and they are always a buyers favorite. This one one nicest condition we have seen! The former owner upgraded this amp to a multi channel Parasound JCS5 for his new homes home theater room.Note: We will use a new double walled shipping box wrapping the amp in 1 bubble wrap with multiple layers, entombing on all surface areas the amp in 2 Styrofoam, We make sure this amp gets to you intact! We are known for our packing....check out our feedbacks! Dimensions: Width: 17 1/2 Panel height: 7 or with feet: 7 5/8 Depth: 19 1/8Fine Print that is not that fine:Condition: Pre-Owned in Excellent condition. Face is clean and LEDS are bright and shiny. This amp was loved!Sorry no original box, packing, or manual (easily found on line for free on the Parasound site). Comes with heavy duty power cord. Tested: 100% audio and function tested. We track serial numbers and hide ID marks on all products to keep our costs down and your prices, too!WHY BUY NEW ELECTRONICS- SHIPPING POLICY: If your total purchase is above $300 we will send insured and signature required. Please make sure to have someone able to sign for the package at time of delivery. WBNE will ship your purchase using the shipping service of our choice that will best get your package to you the fastest and safest. Please contact us BEFORE you buy if you need specialized shipping needs. NOTE: eBay is contractually bound with FedEx that once a package leaves the Seller no alterations can be made for a change of delivery address or change of pickup instructions. Please make sure the address you choose is where you want the product to go! Let the pictures tell the story and our feedback give you the confidence to buy and bid freely. Visit and follow us at our eBay store whybuynewelectronics...where you will always find gently used, rep samples, refurbished, and new discontinued electronics at a fraction of what they originally sold for! WHY BUY NEW ELECTRONICS- CUSTOMER SERVICE POLICY: Our goal is to be more than another product post on eBay. Once you receive your product if you have technical questions, product issues, or need assistance in any way please message us 1st through eBay…we are happy to help. Check the feedback! Our customer service is highly rated. We love help our customers and want you to visit our store first when you are looking for electronics and related items again and again! WHY BUY NEW ELECTRONICS- REFUND POLICY: Products come with a 30 day refund/satisfaction policy from the date in which you receive the goods unless otherwise denoted in the post. We want you happy! For products to qualify the seller will pay for the shipping to return the product. Final acceptance of the return is at the sole discretion of the seller and must arrive in the same condition as when it was sent to the buyer and without damage, alteration, or modification. If you buy a factory fresh sealed box and return it open and used, you will be charged a percentage of such. It will be deducted from the selling price, as it is not being returned in the same condition as it was received unless product is defective. WHY BUY NEW ELECTRONICS tracks serial numbers and hide ID marks on products to assure each return is the product we sent to the buyer. This keeps our costs down and saves you money when you buy from us. Some products are sold “As Is - for parts and not working” and will be listed as such in the post. WHY BUY NEW ELECTRONICS- SALES TAXES POLICY: EBAY now automatically collects and pays directly to each state the appropriate applicable taxes (if mandated by the state) that are now required to be collected. WHY BUY NEW ELECTRONICS- PRODUCT TESTING GUARANTEE: All “Used” product is tested and or verified functioning prior to posting unless noted otherwise in the “Fine print that is not so fine” section of each product post. California Prop 65 Warning: This product may contain one or more chemicals known to the State of California to cause cancer, or birth defects, or other reproductive harm. For more information go to www.p65warnings.ca.gov. New products are not tested prior to shipping as our 30 days refund/satisfaction policy is in effect. Follow and “Like” us on our new facebook page with CE industry news, new products information, and the featured hot pics of the week on our ebay store! Click the link below and “Like” us:www.facebook.com/whybuynewelectronics