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Roland D-20

D-20 (copyright 2012)

Released: 1987

MSRP: $1795US


D-10 with a sequencer and disk drive Architecture Class: Rompler.

Ebay Description:

The Roland D-20 is a 61 key (velocity sensitive), 8-32 voice (9 part multimbral), digital synthesizer, featuring 1-4 oscillators (sample or resonant low pass filtered saw/square), dedicated pitch/filter/amp 4 stage envelopes, LFO, reverb, card slot, 128 presets, 9-track sequencer (64 patterns, 16k notes), 3.5" DSDD disk drive, and MIDI.


Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
61 keys W:1014mm(39.9375in) D:301mm(11.875in) H:106mm(3.1875in) 10.1kg(22.25lbs) no stereo MIDI IN/OUT/THRU MIDI MIDI sustain drum-start/stop 25W AC (IEC C13 to NEMA 5-15P)


Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
D-5 D-10 D-20 D-110 internal:128 card:128 patches:128 preset-tones:128 user-tones:64 card:same MIDI-SysEx card:M-256D/E 3.5" DSDD floppy drive MIDI-SysEx PG-10 menu based LCD display


Multitimbral Polyphony Unison Architecture
2 MIDI/sequencer:9 32|16|8 (1|2|4 partials) no [DCO->DCF->DCA]+[PCM->DCA]+[DCO->DCF->DCA]+[PCM->DCA]


Effects Pan Modulator Volume Modulator Headphone
reverb:8 MIDI-CC10 key TVA-ENV velocity yes


Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no N/A 9 track (8 + rhythm) 16k notes (35k notes via disk) preset-patterns:32 user-patterns:32 bars:500 pedal:start/stop pedal:punch-in/out MIDI bend-lever mod-lever MIDI-CC1 MIDI-CC6 MIDI-CC7 MIDI-CC10 MIDI-CC11 MIDI-CC100 MIDI-CC101 MIDI


Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
no no MIDI-SysEx MIDI variable 1


Stereo Sample Depth Sample Rate Sample RAM Sample ROM Sample Points Sample Trigger Sample Loop Sample Edit
no 16bit ? no ? N/A N/A N/A no


Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
Sample digital sample:256 - no ring LFO MIDI-PitchBend P-ENV bend-lever no
WG digital saw square - no ring PWM:velocity LFO MIDI-PitchBend P-ENV bend-lever no


Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
TVF digital ? yes low pass key TVF-ENV no no


Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
P-ENV 4 4 no yes no velocity key
TVF-ENV 3 4 no no no key velocity key
TVA-ENV 3 4 no no no no key velocity


Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO triangle no no no no MIDI-CC1 mod-lever no
Rompler Models
D-50 D-550 D-10 D-20 D-110 D-5 U-110 U-20
U-220 D-70 MT-32 MT-100 LAPC-I CM-32L CM-32P CM-64
SC-55 MT-120 CM-300 CM-500 SC-155 SC-33 SC-55MKII SC-50
MT-120S MT-200 SC-88 SC-88VL SC-55ST SC-88ST SC-88Pro SC-88STPro
SC-880 SC-8850 SC-8820 MC-303 MC-505 JX-305 MC-307 JD-800
JD-990 JX-1 JV-80 JV-880 JW-50 JV-30 JV-35 JV-50
W-50 JV-90 JV-1000 JV-1080 XP-50 XP-10 JV-2080 JP-8000
JP-8080 XP-60 XP-80 XP-30 JV-1010 M-DC1 M-OC1 M-SE1