Along with the D-5, D-10, and D-110, the D-20 is a second-generation Linear Arithmetic (LA) synthesizer that uses attack transients coupled with single-cycle waveform samples to generate sound. It is patch-compatible with the other second-generation D-series synths but not the first-generation D-50.
Although the sound engine is identical to the D-10, the D-20 has an onboard 8-track sequencer with rhythm track and a 3.5" floppy drive that can store 35,000 notes of song data per disk.
The Roland D-20 is compatible with the PN-D10 series of expansion cards.
Year Released: 1988
Keyboard: 61 keys with velocity
Polyphony: 32 notes
Multitimbral: 8 parts
Preset Patches: 128
User Patches: 64
User Performances: 128
ROM: 128 timbres, 128 tones, 63 drum sounds
Sequencer Memory: 16,000 notes
Effects: 8 Effects
Screen: 16x2 character backlit LCD
Power Consumption: 25 watts
Dimensions: 1014 mm x 301 mm x 106 mm
Weight: 10.1 kg
Roland D20 Linear Synthesizer 1988 ($378.35)