Yamaha DX21

A consumer level DX synth that sounds just like the DX100 - thin and brittle. Following the DX model this synth also uses FM synthesis which is difficult to master. You will need to program this synth to get better sounds because the presets are only moderately useful. It's capable of a good string, bass and droney-pad sound as well as industrial sound-effects and metallic like sounds.
Still it makes a better option than a DX27 or DX100 because it has the capability of layers and splitting the keyboard and there is a chorus effect. Portamento and a Unison Mono-Mode are also nice features for screaming lead synth performances. For a cheaper source of DX sounds with moderate programmability, check out the DX21. It's been used by Hardfloor, Level 42, Brother Beyond, Astral Projection, Technotronic, Vangelis, and Norman Cook (Fat Boy Slim).
- Specifications
- Polyphony - 8 notes
- Oscillators - 4-Operator Digital FM synthesizer
- #Instruments - (1) Monotimbral
- Filter - None
- Effects - Chorus
- Keyboard - 61 Keys (no velocity/aftertouch sensitivity)
- Memory - 128 patches and 16 performances
- Control - MIDI (w / Velocity and Aftertouch)
- Date Produced - 1985
- Websites of Interest
Yamaha Synthesisers Lots of history, info and links.
- Resources & Credits
Images from Synth Site.
Errors or Corrections? Send them here.

the DX-7 has six operators and the DX21 only four so it's next to impossible to directly convert those signature DX-7 sounds to your DX21. However, the DX21 is a great synth on its own that is capable of delivering that typical FM timbre we know and love from its bigger brother. With a bit of clever patch programming and layering, you can create all sorts of DX-style fat pads, glossy leads and pumping basses. I recommend using an editor (like YSEDITOR) for patch creation as the front panel is a bit sparse and non-intuitive.