“Oberheim Matrix 1000 analog synthesizer. 120V. Very good, clean condition. New 2032 battery installed with clip, so future battery replacement is simple. All six voices are now functioning properly. Two of the CEM 3396 voice chips were not functioning properly and have been replaced. Voices tuned and calibrated/see pics. All new stainless case screws. V1.13. 90-day warranty.” Click here to search for synths on eBay
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” UP FOR SALE IS AN OBERHEIM MATRIX 1000 SYNTHESIZER.
“Vintage 1988 Oberheim Matrix-1000 Analog Synthesizer 100V Very Rare” 
“The original analogue rack-mount synth module is on offer here. It works great, just tested several of the ONE THOUSAND PATCHES myself and it sounds amazing. This unit is a 120V original, made in the USA from Oberheim. It features lots and lots and lots of sounds from the Oberheim Matrix 6R and a ton of other sounds. It has MIDI in, out, and thru, a single 1/4 output. LED display is bright (pictured). There is some rack rash around the rack ears, on the top and bottom (pictured). Buttons are all responsive and all functions seem to work. Comes only with a power cord, but you can find the manual online. Can’t go wrong with this one. They are getting kinda rare, too, so grab this one up today!” 
“Oberheim Matrix 1000 analog synthesizer. 120V. Very good, clean condition. New 2032 battery installed with clip, so future battery replacement is simple. All six voices are now functioning properly. Two of the CEM 3396 voice chips were not functioning properly and have been replaced. Voices tuned and calibrated/see pics. All new stainless case screws. V1.13. 90-day warranty.”
“Oberheim Matrix 1000 analog synthesizer. Very good, clean condition. New 2032 battery installed with clip, so future battery replacement is simple. All six voices are now functioning properly. Two of the CEM 3396 voice chips were not functioning properly and have been replaced. Voices tuned and calibrated/see pics. 7 new stainless case screws and complete main board screws. V1.13.” 
“Oberheim Matrix 1000 analog synthesizer. Very good, clean condition. New 2032 battery installed with clip, so future battery replacement is simple. All six voices are now functioning properly. Two of the CEM 3396 voice chips were not functioning properly and have been replaced.” 
“Bought long ago new with several others. Put in storage in plastic foam. Never used.
“This Matrix 1000 is in perfect working condition and in Very Good condition.
“Oberheim Matrix-1000 Synthesizer Module MIDI Vintage classic unit. Condition is Used. Rack ears slightly bent but unit functioning per perfectly when recently tested. Well loved unit, but I don’t need two of them anymore, so it should find a new home. As-is due to age.” 
” Vintage Analog Goodness.. Oberheim Matrix 1000 with Stereoping Matrix Controller. ALL in FULL working condition, no operational issues. Both look good, Matrix has some rack rash on rack ears, but works perfectly. this is just by far the best oberheim for the money. Classic rich pads, strings, brass, basses, leads all for a low price considering how much OB8, OBXA, Xpanders are selling for nowadays. ” 
“Oberheim Matrix-1000 Analog Sound Module. Condition is Used. Shipped with USPS Parcel Select Ground.This is in good shape. It just stayed in my studio.I’m going to retire soon so I’m letting things go.” 
“Oberhiem classic Matrix-1000 Analog synth module. Condition is Used. ”
“Oberheim Matrix-1000. Classic synth module with over1000 most famous warm ,waves, arpeggiator sounds from Oberhiem . Excellent condition. Used once, Condition is barely used”
“Like new sound module Oberheim Matrix -1000 stayed in the studio all its life,never used. Brand new battery. It works perfect. 1000 sounds,”
“Like new sound module Oberheim Matrix -1000 stayed in the studio all its life,never used. Brand new battery. It works perfect. 1000 sounds,”
“Like new sound module Oberheim Matrix -1000 stayed in the studio all its life,never used. Brand new battery. It works perfect. ”
“Powers on when plugged in. In great to excellent condition. I used it in my music studio years ago. Unfortunately, after a year, the studio had to be torn down. The building was to be gutted and this unit, along with all of my other studio music equipment, have to be stored away – they have been cleaned, wrapped and stored away in a storage unit until now. I have not used it again since I packed it away, and now I am moving out of the country soon. Thus, I am selling as is.”
“This vintage rack-mount synth module has some amazing sounds. If you love the sound of Oberheim synths, this is far less expensive and in better condition than any Matrix-12 you can find.
“Condition :Used”
“1000 Classic Analog Synth sounds from the Oberheim Matrix 1000! Works great (see photo with power on – Patch 745 was my favorite!). Includes all ORIGINAL manuals, cards and the original box. Only issue is cosmetic – a bent rack ear and scratches on top and bottom panels. A truly special tone module.”
“You are checking out a Oberheim Matrix-1000 tested and working. Not completely familiar with all the features of this unit as far as how to get sounds, but was able to go through some of the patches and all appears to work. There is no manual included.” 
“Oberheim matrix 1000 Excellent condition. Condition is Used.
“A vintage synth classic. Lush, Fat, Pulsing, Warm Oberheim deepness all in a 1U rack. Some great editors out there to bring this into your DAW if you so wish. As used by Laurent Garnier, Depeche Mode, Future Sound of London, Pet Shop Boys, and Faithless.”
“Oberheim Matrix 1000 6-Voice Polyphony Analog Rack Synth. Condition is Used. Shipped with USPS Priority Mail. The unit comes with firmware ver 1.16 which I upgraded to after I bought it. I will also ship the old firmware chip which is ver 1.11. ” 
“Oberheim Matrix 1000 6-Voice Polyphony Analog Rack Synth. Condition is Used. ” 
” Oberheim Matrix 1000 – 6 Voice Polyphonic Synthesizer Rack Module — In great condition! 100% functional! Looks great! Slight rack rash as seen in photos.
“I loved using this classic synth in my hardware setup, but I’m focusing more on writing music entirely on the computer, and because of that, this synth needs to find a new owner who will make good use of it.
“Up for sale is a fantastic Oberheim Matrix 1000. The bass sounds on this are really fat and so are the lush evolving pads. I’m moving out of the country so I’m selling some gear. This is sad to let go because It’s a great sounding analog synth that only takes up 1 rack unit.
“MATRIX 1000:Very Good to Excellent Condition. There is a tad of rack rash on the top of the unit. A few minor dings at the edge of the front panel, but you really have to look hard for those. The display screen is perfect, all buttons are fully intact and clean. Control knob and MIDI are jacks in very good condition. Overall condition is excellent!STEREOPING 1016R:Like New! Flawless Condition.” 
“Oberheim Matrix-1000 synthesizer. Upgraded the power supply as original was getting noisy. Patches 1-99, 200-999, with 100-199 blank. Have used the unit via selecting voice from front panel, playing via midi controller. As you can see in the photo, front panel right side has rack rash. ” 
“Recently serviced and new voice chips fitted, PSU, volume control and 1.20 firmware.”
“This Matrix-1000 synth module is 100% functional and it sounds wonderful.
“Pulled from a working studio. Works fine. Some wear on the case from use but still in overall good condition. Comes with original box and power cord”
“Lightly used. Works perfectly.”