MATRIXSYNTH: Yamaha DX-7 FM Synthesizer w/ Supermax Upgrade & Backlit LCD


Sunday, March 01, 2015

Yamaha DX-7 FM Synthesizer w/ Supermax Upgrade & Backlit LCD

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"For sale is a Yamaha DX-7 (mk1) with the Supermax upgrade installed. The display has been upgraded to a bright green backlit display. I've also fully cleaned the keys - all of the keys work evenly, and transmit velocity and aftertouch. The DX has been well tested - everything is 100% functional on this synthesizer.

Cosmetically, there are some scratches and scuffs on it, but it's still overall very clean. The volume slider is free of static and scratchiness, and the buttons all work evenly. You'll notice in the photo there's some wear on the membrane overlay. There aren't any holes (it might look that way in the photo - trust me, there aren't any), but around the #1 button, it's raised up a bit.

Now, the Supermax upgrade.

I've owned and serviced a number of these, including one with a grey matter board. I've never seen the Supermax until now, and it's stunning. You get:

- 12 banks of patch memory (256 patches total)
- 32 programmable arpeggiators
- Stack voices - this sacrifices some polyphony, but within a single patch, you can tune up to 3 additional voices +/- two octaves (coarse and fine tuning). This, is a lot of fun.
- A mono delay processor. Delay goes up to 9,930ms, with level, feedback, and pitch mod control. Unfortunately due to processor limitations, you can change the delay in real-time.

There are some other features, but these are the core of it. It also comes with the original voice chips, the old LCD, a padded case, and a manual (though, I'll have to PDF you the Supermax manual)."


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