Monday, March 27, 2017
Oberheim Matrix-6 Keyboard Synthesizer
via this auction
"In good to very good condition. Some minor cosmetic blemishes (shown in closeup photos) but all graphics are good. Has never left home studio. Noisy headphone op amp and battery were professionally replaced July 2016. Includes user manual and power cord. Latest firmware [2.13] is installed as shown in photo."
2.13 allows sysex editing via external controllers.