Yamaha DX7s/IID/IIFD

A classic synth gets a make-over by three significant updates to the original. The DX-7 was an amazing digital FM synth. The DX-7s carries on the torch once held by the DX-7. It offers the same great FM synthesis method and can also create sounds just as unique and wild as the DX-7. However, they can be just as difficult to program and understand for most users. Some general improvements include enhanced MIDI support, micro-tuning, aftertouch controlled pitch bending, and multiple LFOs. Although many improvements have been made to the DX-7 in this upgrade there still could have been room for improvement, which is where the DX7IID and DX7IIFD come in.
These next models allowed for keyboard split and layering capabilities. The DX7IID (pictured above) and DX7IIFD hold 64 voices in internal memory, as well as an additional 64 voices in a RAM/ROM cartridge that can be accessed. These voices can be layered in dual mode providing very rich sounds or a nice combination of sounds that would be impossible on the original DX7. They can also be split, for a two voice multi-timbral capability. Again, impossible on the original DX.
They have wonderfully clean sound and are stereo, providing pans and chorus and a few other nice effects. There are two real time sliders on these instruments, allowing control of user-programmable items in real time. Micro-tuning, as well as fractional tunings for eastern music etc. is possible. The FD includes a floppy drive for storage of patches, performance presets and sysex information. Like the DX7, these new models may have been used by The Crystal Method, Kraftwerk, Underworld, Orbital, Talking Heads, Brian Eno, Depeche Mode, D:Ream, Front 242, U2, A-Ha, Enya, The Cure, Stabbing Westward.

Pictured in silver & gold above is the DX-7 Centennial, released in 1987 to celebrate Yamaha's 100th anniversary. Not just a new paint job, the limited edition model had 64-voice internal RAM memory and 64-performance memory, 32-note polyphonic stereo output (2 x 16 voices), and a 76-key velocity and after-touch sensitive keyboard that glows in the dark. Additional improvements include enhanced MIDI support, stereo panning, 6 envelope generators and enhanced 16-bit circuitry. Only about 300 were made and it originally sold for $3,500!
30 VISITOR COMMENTS
- Demos & Media
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Video 1 - YAMAHA DX7 II FM Synthesizer “Ambient DX”
Video 2 - Yamaha DX7 | demo by syntezatory.prv.plAudio Clip 1 - Get a taste of the sounds a DX-7 can generate.
Manual - Download the original owner's manual here.
- Specifications
- Polyphony - 16 voices
- Oscillators - Programmable 6-operator x 2 (A & B) 32-algorithm digital FM tone generator
- LFO - Sine/Square/Tri/SAW up/SAW Down/Random
- Filter - None
- VCA - 6 Envelope generators 8 parameters each
- Keyboard - 61 keys, Velocity and Aftertouch, Split and Layer mode
- Memory - 128 patches, 32 performances
- Control - MIDI IN/OUT/THRU
- Date Produced - 1987
- Websites of Interest
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Yamaha Synthesisers Lots of history, info and links.
- Resources & Credits
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Images from Synth Site
Thanks to Joel Lingenfelter and Scott Marcotte for providing some of this information.
Errors or Corrections? Send them here.
I have SY99 and sound programming is still very dificult for me, but the sound is excelent. Patches from DX sounds better as the original AWM+FM from SY ...
http://www.youtube.com/watch?v=Wm5vNeROMaQ