Roland U-220

"Rackmount Midi module version of famous RS synthesizer U-20 keeping same structure and sound.

Overview

MODULEThe main panel features a 24 x 2 lines display, 12 buttons, volume knob.
2 PCM card slots and headphones output.

FACTORY U220 RESET
1. Press JUMP and VALUE
2. hold MARK and JUMP, the s ENTER.
3. hold MARK, press PART INST LEFT
4. Press ENTER, then press the VALUE UP button.
5. hold MARK and JUMP, finally EXIT

TERMINAL CONNECTORS:
- Midi interface
- 2 main stereo out
- 4 stereo aux outputs (no effects)

Sound

SOUND system based on a Intel P8098 CPU which handles 30 voices polyphonic subtractive synthesis RS PCM Resynthesized Pulse Code Modulation. RS concept resynthesizes and rebuilds new harmonics using a custom sample interpolation, but it lacks a filter structure, in fact RS can be mistaken with older L.A synthesis implemented in Roland D-50 model. Sound hierarchy is a bit confusing: the lowest level is a tone which is composed by either 1 or 2 samples (2 samples tone reduces the whole polyphony) out of 128 tones available (drum is apart) with no possible edit. The upper level is the timbre composed by a single tone that has some editable parameters: volume, detune and vibrato LFO. Finally 6 timbres make a patch for performance.

WAVETABLE 4 Pure rompler synth: 3MB ROM (6X 512 kb ROM) is organized in 2 sound groups:

- acoustic samples eg: piano, bell, guitar, string, organ, brass [...]

- precalculated basic waveforms eg: pulse, sawtooth and generated harmonics.

CARD EXPANSION The ROM can be expanded using special PCM cards, also compatible with: Here's the list of available models:

SN-U110-01: Pipe Organs & Harpsichords

SN-U110-02 :Latin and FX Percussion

SN-U110-03:Ethnic

SN-U110-04: Electric Grand and Clavi

SN-U110-05: Orchestral Strings

SN-U110-06: Orchestral Winds

SN-U110-07: Electric Guitar

SN-U110-08: Synthesizer

SN-U110-09: Guitar and Keyboards

SN-U110-10: Rock Drums INFO

SN-U110-11: Sound Effects

SN-U110-12: Sax & Trombone

SN-U110-13: Super Strings

SN-U110-14: Super Ac Guitar

SN-U110-15: Super Brass

>Also third part cards from Musitronics Akkordeon (ID: 25 / Analog Synthesizer / Voices (ID: 22) / Eldek (ID: 21)

U220 Parameters

ENVELOPE a single 4-stages amplitude EG.

LFO modulates only the amplitude with variable depth, delay time and 9 shapes: triangle, sinewave, square, saw up, saw down, trill (x2) and random (x2). Special AUTOBEND function is a basic modulation for a pitch-warp effect, so it should be considered as another simpler LFO.

EFFECTS there are 2 main FX sections with limited edit parameters:
- reverb: 9 presets including hall, delay, room and gate
- chorus: 5 presets including chorus, flanger and delay.

MEMORY 64 patches + 64 performances + 4 rhythm sets. MEMORY is doubled if RAM card model Roland m-256 is fitted.