“I purchased this synthesizer used in 2014. It is in perfect working condition, and very good cosmetic condition. It has some minor scuffing and wear in spots, and some of the Oberheim logo, “Matrix-1000” and “Volume” printing on the front-left side of the panel has faded/flaked off (see photo). It was in this condition when I purchased it, and has not sustained any more wear since then. It has been used in my smoke-free home studio and was never gigged by me.
I also updated the OS by installing a new OS V1.1.3 programmed eprom chip in 2014, which adds some MIDI control functionality and improves MIDI CC response time significantly (see photo). This enables you to use PC editing software to edit and save your own patches. I used a program called Ctrlr, you can google it for more info, there are probably several options at this point. This effectively turns the Matrix-1000 into an Oberheim Matrix-6.
Original power cord is included. Original Oberheim Matrix-6 manual is included; The Patch parameters are identical to the Matrix-6.” Click here to visit listing on eBay