This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

This item was gifted to me by a relative as it was no longer working after many years of use and they wanted me to try to repair it. It does not power on and the repair methods I saw online seemed too complex for me. No guarantees that repairs will make it work again but there is a chance! Replacing this was something I am not comfortable with, but if you are, feel free to purchase as it is a great device when working. Only the device will be included in the sale. Message me with any questions or offers you have.

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

TESTING & COSMETIC NOTES: This is a KNOWN BAD / PARTS & REPAIR item in GOOD cosmetic condition that FAILED TO POWER ON and is SOLD AS-IS / NOT GUARANTEED The unit was received in our facility in known bad condition. Unit does not power up. Sold as parts/repair. COMPONENTS INCLUDED IN THIS AUCTION: • (1) - LEXICON MC-12 DIGITAL CONTROLLER PREAMP SURROUND SOUND PROCESSOR MC12 PARTSPARTS OR REPAIR - ONLY GUARANTEED TO BE AS PICTURED: Our descriptions, and photos represent our best effort to relay all pertinent information about a product. We assure the buyer that they will receive the quantity, components, and level of operation shown in the photos. This does not represent a guarantee or warranty about the items functionality beyond what is depicted in the photos. We expect to receive less money for items sold in this condition; as a trade-off, we do not accept returns or offer refunds. We ask that our prospective buyers take these purchase terms into account and bid accordingly. Please Click Here to Visit Our Store at > at src=https://www.ocdepot.com/template/Rounded_Middle_Right.gif /> at src=https://www.ocdepot.com/template/Rounded_Left_Bottom.gif /> at > at src=https://www.ocdepot.com/template/Rounded_Middle_Bottom.gif /> at src=https://www.ocdepot.com/template/Rounded_Right_Bottom.gif /> SearchBy37 - 265634 | Loc: F22 | L: Rob | T: | PM: Nick | QTY: 0 | Plan: F1- Q1 5 pounds or more | 22.00x20.00x10.00 45.00lbs | Start: $0.00 | BIN: $99.99 | | 2024-12-27 | | Consumer Electronics::TV, Video & Home Audio::Home Audio::Receivers & Amplifiers::Amplifiers & Preamps

Powers on, goes through diagnostics. HDMI passes video, I cannot get audio on any inputs, HDMI or RCA. Top cover very scratched up. I am not familiar with these so it may be me. I will include a power cord.

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

Lexicon MC-12HD Digital Controller THX Ultra Surround Sound Processor HDMI Note: does not power on Does Not Include: any accessories **CHECK PHOTOS FOR MORE DETAILS****This item is being SOLD AS-IS, for non-working, parts or repair only. We describe AS-IS products to the best of our knowledge, but can not guarantee the operation of any parts included in this sale. Returns will not be accepted for this item. Please take this into account when buying. We will respond to questions during business hours between 7:30 AM - 3:00 PM (EST) Monday through Friday. Shipping quote is for Continental United States only. Alaska, Hawaii, Puerto Rico and P.O. Boxes: Free Shipping offers do not apply. All packages to these regions will incur additional shipping charges. Please contact us for further details.

Lexicon MC-12 with room version 4 Equalization Kit and Software Excellent Condition in full working order. Includes remote which is very “sticky” due to the rubber coating that was used on this product. All original manuals included. Local pickup only - Simi Valley, California May be willing to ship if buyer pays for packaging and shipping.

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

TESTING & COSMETIC NOTES: This is a KNOWN BAD / PARTS & REPAIR item in GOOD cosmetic condition that FAILED TO POWER ON and is SOLD AS-IS / NOT GUARANTEED The unit was received in our facility in known bad condition. Unit does not power up. Sold as parts/repair. COMPONENTS INCLUDED IN THIS AUCTION: • (1) - LEXICON MC-12 DIGITAL CONTROLLER PREAMP SURROUND SOUND PROCESSOR MC12 PARTSPARTS OR REPAIR - ONLY GUARANTEED TO BE AS PICTURED: Our descriptions, and photos represent our best effort to relay all pertinent information about a product. We assure the buyer that they will receive the quantity, components, and level of operation shown in the photos. This does not represent a guarantee or warranty about the items functionality beyond what is depicted in the photos. We expect to receive less money for items sold in this condition; as a trade-off, we do not accept returns or offer refunds. We ask that our prospective buyers take these purchase terms into account and bid accordingly. Please Click Here to Visit Our Store at > at src=https://www.ocdepot.com/template/Rounded_Middle_Right.gif /> at src=https://www.ocdepot.com/template/Rounded_Left_Bottom.gif /> at > at src=https://www.ocdepot.com/template/Rounded_Middle_Bottom.gif /> at src=https://www.ocdepot.com/template/Rounded_Right_Bottom.gif /> SearchBy37 - 265634 | Loc: ZROB | L: Rob | T: | PM: Nick | QTY: 0 | Plan: F1- Q1 5 pounds or more | 22.00x20.00x10.00 45.00lbs | Start: $99.99 | BIN: $0.00 | | 2024-12-27 | | 14970

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

Experience unparalleled audio quality with the Lexicon MC-12 Digital Controller Preamp/Processor. This audio processor is designed to provide crystal clear audio with Dolby TrueHD, Dolby, and DTS 96/24 surround sound formats. The MC-12 is perfect for enhancing your home audio experience and is ideal for use in amplifiers, preamps, and receivers. This model is a top-performing audio processor that delivers exceptional sound quality. With features like digital technology and a range of surround sound formats, you can enjoy high-quality audio every time. This audio processor is perfect for any audio enthusiast and is a must-have for any home theater system. In working condition when removed from high-end home theatre. Theater was upgraded to a new projector and full system.

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

A copy of the spiral bound User Manual for the Lexicon MC-12

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

Comes with original remote and power cord. Plugged in but doesn’t power on. The remote is sticky from rubberized coating being deteriorated. See pics Specifications MC-12 Digital Controller surround-sound processor Main zone audio outputs: 7 active audio, 3 active subwoofer (Left, Right, LFE), 2 auxiliary for future use Zone 2 audio outputs: 2 stereo pairs (fixed, variable) Record outputs: 2 stereo pairs (fixed, variable) Analog audio inputs: 8 stereo pairs (5 pairs when the 5.1 analog audio input is in use) Digital audio inputs: 6 coaxial (RCA), 6 optical (5 TosLink, 1 optical minijack), 1 AES/EBU Digital audio outputs: 1 coaxial, 1 optical Video inputs: 5 composite, 8 S-video, 4 component (3 RCA, 1 BNC) Video outputs: 4 composite, 4 S-video, 1 component Subwoofer crossovers: 30-120Hz (in 10Hz increments) Microphone inputs: 4 mini (3.5mm) phone jacks Trigger outputs: 1 power on/off, 2 programmable Infrared input: 1 RS-232 serial ports: 2 configured for input or output, for system control and software upgrades Dimensions: 17.3 x 5.2 x 14.85 (WxHxD)

This unit looks new!! Passes Self Test This is the B version with Balanced/XLR outputs. Only a few fine scratches in case. Top has no scratches. The power supply in this unit is new and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life. I honestly dont think youll find another working V2 for this price. NO REMOTE. 12 channels, 12 configurable inputs, and 3 zones Automatic speaker distance and output level calibration Lexicon Digital EQ-standard with EQ model and available via upgrade 5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputs Two 24-bit/192kHz D/A converters for each main audio output Balanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputs S/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs 2 broadcast-quality analog video switchers 4 component video inputs with full HDTV compatibility RCA and professional-grade BNC component video inputs/outputs 3 S-video and 2 composite video inputs LOGIC7 decodingLexicon LIVE processing Dolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decoding THX Ultra2 and THX Surround EX decoding 3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputs

Comes with original remote and power cord. Plugged in but doesn’t power on. The remote is sticky from rubberized coating being deteriorated. See pics Specifications MC-12 Digital Controller surround-sound processor Main zone audio outputs: 7 active audio, 3 active subwoofer (Left, Right, LFE), 2 auxiliary for future use Zone 2 audio outputs: 2 stereo pairs (fixed, variable) Record outputs: 2 stereo pairs (fixed, variable) Analog audio inputs: 8 stereo pairs (5 pairs when the 5.1 analog audio input is in use) Digital audio inputs: 6 coaxial (RCA), 6 optical (5 TosLink, 1 optical minijack), 1 AES/EBU Digital audio outputs: 1 coaxial, 1 optical Video inputs: 5 composite, 8 S-video, 4 component (3 RCA, 1 BNC) Video outputs: 4 composite, 4 S-video, 1 component Subwoofer crossovers: 30-120Hz (in 10Hz increments) Microphone inputs: 4 mini (3.5mm) phone jacks Trigger outputs: 1 power on/off, 2 programmable Infrared input: 1 RS-232 serial ports: 2 configured for input or output, for system control and software upgrades Dimensions: 17.3 x 5.2 x 14.85 (WxHxD)

Used this in my home theater for sometime… Used for Cd analog and optical listening… Optical tv and 5.1 surround… Optical dvd 5.1 surround… Never did any video and recording … Never got into the zoning and everything else this unit can do… It was being used for a basic 5.1 theater… SOUNDS GREAT!!! The only reason I changed is because I went more basic as I don’t use a majority of the mc12 abilities… I don’t see the unit having any issues HOWEVER BECAUSE I NEVER USED ALL OF THE functions and features… I AM SELLING AS IS CANNOT GUARANTEE ALL FUNCTIONS… NO returns… It has worked flawlessly for me and again the only reason I changed is because I went simpler … Remote works but sometimes doesn’t… it does have new batteries as I just changed them not too long ago… remote is AS IS… not guaranteed to work perfectly but is included… I am including the lexicon MC BROCHURE… just cool to see the pictures and info about the unit… Any questions please ask!! SELLING AS IS… cannot guarantee all features and functions…

HDMI Features:6 HDMI audio/video inputs, 1 HDMI audio/video outputOn-screen display on HDMI outputsUp-conversion of composite and S-Video signals to component video No RemoteThis unit looks new!!Passes Self TestThis is the B version with Balanced/XLR outputsOnly a few fine scratches in case. Top has no scratches.I have the case which was removed for the pictures. Ill re-attach it prior to shipping.The power supply in this unit is new, and secured to the chassis/heatsink with a specially designed Arctic TP3 thermal pad for cooler operation and long life.I honestly dont think youll find another working V2 for this price. HDMI Features:12 channels, 12 configurable inputs, and 3 zonesAutomatic speaker distance and output level calibrationLexicon Digital EQ-standard with EQ model and available via upgrade5.1-channel analog audio inputAnalog bypass for stereo and 5.1-channel analog audio inputsTwo 24-bit/192kHz D/A converters for each main audio outputBalanced main and second zone audio outputsS/PDIF coaxial, S/PDIF optical and AES/EBU digital audio inputsS/PDIF coaxial and S/PDIF optical digital audio outputsAutomatic switching between analog and digital audio inputs2 broadcast-quality analog video switchers4 component video inputs with full HDTV compatibilityRCA and professional-grade BNC component video inputs/outputs3 S-video and 2 composite video inputsLOGIC7 decodingLexicon LIVE processingDolby Digital Surround EX and Dolby Pro Logic IIx decodingDTS 96/24, DTS Neo:6, and DTS-ES (matrix and discrete) decodingTHX Ultra2 and THX Surround EX decoding3 trigger outputs, rear panel IR input, and RS-232 control4 microphone inputsRack-mount optionLink zu Lexicon.com

Comes with original remote and power cord. Plugged in but doesn’t power on. The remote is sticky from rubberized coating being deteriorated. See pics Specifications MC-12 Digital Controller surround-sound processor Main zone audio outputs: 7 active audio, 3 active subwoofer (Left, Right, LFE), 2 auxiliary for future use Zone 2 audio outputs: 2 stereo pairs (fixed, variable) Record outputs: 2 stereo pairs (fixed, variable) Analog audio inputs: 8 stereo pairs (5 pairs when the 5.1 analog audio input is in use) Digital audio inputs: 6 coaxial (RCA), 6 optical (5 TosLink, 1 optical minijack), 1 AES/EBU Digital audio outputs: 1 coaxial, 1 optical Video inputs: 5 composite, 8 S-video, 4 component (3 RCA, 1 BNC) Video outputs: 4 composite, 4 S-video, 1 component Subwoofer crossovers: 30-120Hz (in 10Hz increments) Microphone inputs: 4 mini (3.5mm) phone jacks Trigger outputs: 1 power on/off, 2 programmable Infrared input: 1 RS-232 serial ports: 2 configured for input or output, for system control and software upgrades Dimensions: 17.3 x 5.2 x 14.85 (WxHxD)