Yamaha DX21

Available from 01/01/1985 until 01/01/1987
A consumer level DX synth that sounds just like the DX-100 - thin and brittle. Following the DX model this synth also uses FM synthesis which is difficult to master.
Extended information
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 DX-27 or DX-100 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 DX-21.
Technical 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)
