1985 DX7 Mk1 in absolute mint, “collectors” condition.  Includes Grey Matter Response E! add-on board and ultra-rare backlit display.  In perfect working and cosmetic condition with ALL accessories, including:

  • 80’s Calzone ATA flight case in mint condition itself, with brand-new foam lining
  • All original standard Yamaha accessories in excellent condition:  volume pedal, sustain pedal, wire music rack, original factory Volume 3 and 4 ROM cartridges, 2 Yamaha RAM cartridges
  • Other goodies: original Yamaha Breath Controller, barely used; Bo Tomlyn’s Best of the USA ROM cartridge (2 banks), a dust cover, and even 2 factory audio cassettes on the DX7 – never opened!
  • All original documentation, including Grey Matter Response E! documentation (rare).  The E1 board provides 10 onboard banks of 32 patches. Couple that 2 one of the 2-bank cartridges and that gives you 384 DX7 patches at your fingertips

I am the original owner of this since 1985.  Never gigged, and lived in the case almost the entire life.  Yes, I’m asking a lot for this, but in the past 15+ years I have never seen another DX7 for sale with this extensive collection of valuable add-ons and accessories, let alone in this condition.  You can’t even buy a case like this anymore.  If you are a serious collector of vintage synths and need a pristine and unique example of this iconic instrument in your collection, then this is for you. I am not in a hurry to sell this.  I am willing to wait for the right, serious buyer.

Cash only, no trades.  Due to the incredible weight & value of this thing, I will not ship.  I am willing to travel within 100 miles of Philadelphia to meet a buyer in-person after verifying the buyer, a downpayment, and arrangements to meet.

Listed4 months ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more
Brand
Model
  • DX7 Programmable Algorithm Synthesizer
Categories
Year
  • 1985
Made In
  • Japan
Number of Keys
  • 61 Keys
Keyboard Action
  • Synth Action
MIDI I/O
  • MIDI Through
  • MIDI Input
  • MIDI Output
Key Size
  • Full Size
Polyphony
  • 16 Voices
Analog / Digital
  • Digital

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Bruce's Gear

Eagleville, PA, United States
Joined Reverb:2026

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