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Roland U-20

U-20 (image courtesy of Roland)

Released: 1989

MSRP: $1695US


Swaps two PCM card slots for full ADSR envelope, LFO waveforms, rhythm part, arpeggiator, and more memory (PCM and patch). Architecture Class: Rompler.

Ebay Description:

The Roland U-20 is a 61 key (aftertouch and velocity sensitive), 30 voice (7 part multimbral), digital synthesizer, featuring 1-6 oscillators (128 samples) per patch (128 patches), ADSR envelope, LFO (triangle, sine, square, saw-up/down, random with attack and polarity), reverb/chorus, 2 PCM card slots, arpeggiator, 6 individual outputs, and MIDI.


Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
61 keys W:985mm(38.75in) D:310mm(12.1875in) H:85mm(3.25in) 10kg(22lbs) no stereo:2 MIDI IN/OUT/THRU MIDI pedal MIDI sustain programmable 20W AC


Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
CM-32P D-70 U-20 U-110 U-220 performance:64 card:same patches:128 card:same MIDI-SysEx Program-card:M-256E PCM-card:SN-U110 MIDI-SysEx menu based LCD display


Multitimbral Polyphony Unison Architecture
6 + rhythm 30 no PCM->DCA


Effects Pan Modulator Volume Modulator Headphone
reverb chorus MIDI-CC10 aftertouch MIDI-CC7 ENV velocity yes


Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
up and/or down or random no no N/A N/A bend-lever mod-lever MIDI-CC1 MIDI-CC1-5 MIDI-CC6 MIDI-CC7 MIDI-CC10 MIDI-CC7-31 MIDI-CC38 MIDI-CC64-95 MIDI-CC100 MIDI-CC101 MIDI


Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
channel polyphonic yes MIDI-SysEx MIDI pedal no 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:128 - no no auto-bend aftertouch LFO MIDI-PitchBend bend-lever no


Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
ENV sustain attack decay release no no no no no


Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO triangle sine square:offset saw:up saw:down random attack yes no no aftertouch 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