Yamaha SY99

Yamaha SY99 Image

The SY99 is like having a super-sized sampling workstation with the synthesis and sounds of a DX-7mkII. Basically the same as the SY77 it features a larger 76 note keyboard with upgraded synthesis, sample memory, sequencer and more! For its synthesizer section it employs a 6 operator AFM synth engine similar to, if not better than, the original DX's. Sampled preset sounds (AWM2) can then be fused with the AFM sounds to create entirely wild new sounds! And these sounds are quite shapeable thanks to the resonant multi stage Time Variant Filters which offer the ability to recreate the warm analog sounds of classic synths, or something entirely new.

There's an enhanced on-board sequencer section for creating your songs right on the SY99. It's got 16 tracks, from which channel 16 belongs to the built-in drum synthesizer. The sequencer can hold up to 27,000 notes, 99 patterns and 10 songs. And since the SY99 features 16 voices of polyphony for the AFM section, and another 16 voices for the sampled sounds, there are 32 voices to go around to build your song. Not to mention there are 2 digital multi-effects processors which include reverb, delay, chorus, panning and more! Professional features for those of you want to really control and shape your sounds using the unique sounds (and complex synthesis) of a Yamaha FM synth with some special features up its sleeve. It has been used by Vangelis and Chick Corea.

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55 Visitor comments
October 19, 2012 @ 5:58 pm
SY-99 has one of the best synth engines ever. Each of the 16 FM voices contains 6 operators with very complex envelopes, different waveforms and a multi-mode digital filter, the 16 AWM voices uses samples (in ROM or in non volatile RAM) and the same digital filters, you can stack two voices of each type, and you can use any sample as an FM operator. Also the integrated F/X processor was a reference in its time.
The result, extremely expressive sounds.
October 15, 2012 @ 5:52 am
A song created entirely with sounds from the SY-99 :

October 11, 2012 @ 7:50 am
@CJ if your key is sticking down - take the bottom off the synth, remove the screws from the keybed, remove the offending key and check that the metal guide (with rubber on) isn't bent. Sounds like it's rubbing on the key and making it stick - SIMPLE FIX! pliers and some bending straight - done.
October 3, 2012 @ 6:07 pm
I inherited one from a relative a few years ago and I love it, but one of the keys gets stuck down. I've looked for fixes online, but couldn't find anything.

Can anyone direct me to a fix or replacement part for this? Would be much appreciated. Please email me if you've got a solution. Thanks!

christopher.jachmich [at] gmail {dot} com
Derwin "Dave" Johnson
September 14, 2012 @ 2:26 pm
Here we are in 2012! I just traded a very heavy Roland A90-ex for the "less" Heavy Yamaha Sy-99. I used to have the Sy-77 back in the day. I don't know why I parted ways with it! I am truly proud to own a Sy-99 now! Considering the outrageous price of $4,000.00 on the nineties! This keyboard got BALLS! If you are into smooth Jazz or Funk, this keyboard is highly recommended! I Love FM electric piano from the DX era! Now, when you use combinations, you are in DX HEAVEN!!!!!!! I got mine for a good price. This keyboard is a direct descendant of DX7 world/grandparents of the MOTIF!!!
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Rated 4 (502 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 32 voices: 16 AFM voices, 16 (AWM2) sampler voices
  • Oscillators - 6 operator AFM synth; AWM2 sample ROM with 267 waveforms
  • Filter - Multi-stage Time Variant Filters with resonance
  • Arpeg/Seq - 16 track sequencer, 27,000 note capacity, 99 patterns, 10 songs
  • Effects - 2 internal digital effects processors with 63 effects
  • Keyboard - 76 notes with velocity and aftertouch
  • Memory - 128 preset & 128 user patches, 16 preset & 16 user multi-patches
  • Control - MIDI
  • Date Produced - 1991
  • Resources & Credits
  • Images from Synthony.

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