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SQ-1 Plus

Ensoniq SQ-1 Plus

SQ-1 Plus.
SQ-1 Plus

Released: 1991

MSRP: $1595US

Synopsis:

Adds samples. Architecture Class: Rompler.

Ebay Description:

The Ensoniq SQ-1 Plus is a velocity (and MIDI pressure) sensitive 61 key (21 voice, 24 channel multitimbral) synthesizer, featuring 167 waveforms, dual multimode digital filters, three 4-stage envelopes, an LFO, versatile modulation, stereo effects, 8 track (+ 8 track song) real or step time sequencer, auxiliary outputs, and MIDI. The 80 user editable presets can be saved via MIDI SysEx, 3.5" DSDD disk drive, or cartridge (another 100 presets are in ROM).

Physical

Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
61 keys W:40.375in (102.6cm) H:5.125in (13cm) D:13.375in (34cm) 25lbs (11.3kg) no main:stereo aux:stereo MIDI IN OUT THRU pedal no dual (TRS) AC

Interface

Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
SQ-1 SQ-1+ SQ-R SQ-R+ SQ-2 KS-32 shares program memory preset:100 user:80 cartridge:160 cartridge (ROM:SC/ISC RAM:MC-32) 3.5" DSDD disk drive MIDI SysEx menu driven LCD display

Architecture

Multitimbral Polyphony Unison Architecture
24 max:21 (osc:1) min:7 (osc:3) no DCO->DCF->DCA->Pan

Output

Effects Pan Modulator Volume Modulator Headphone
24bit stereo multieffects processor (ESP chip), featuring reverb, chorus, flange, phasing, delay, distortion, rotating speaker, compression, wah. Effects can be modulated by performance controls (pressure, velocity, key, mod wheel, CV/switch pedals, MIDI CC, 6 ramps) no pressure Env1-3 key LFO MIDI-CC Mod-Wheel Pitch-Wheel noise pedal velocity yes

Control

Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no N/A 8 track + 8 track song real or step time (supports Sysex dump/load) notes:9k (SQX-70-S:58k note) sequences:70 songs:30 MIDI pedal Mod-Wheel Pitch-Wheel MIDI-Bend MIDI-CC1 MIDI-CC2 MIDI-CC4 MIDI-CC6 MIDI-CC7 MIDI-CC10 MIDI-CC70 MIDI-CC92 MIDI-CC93 MIDI-CC94 MIDI-CC95 pedal

Keyboard

Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
channel polyphonic (MIDI only) no MIDI (guitar mono mode) MIDI pedal pitch:microtonal 4

Sample

Stereo Sample Depth Sample Rate Sample RAM Sample ROM Sample Points Sample Trigger Sample Loop Sample Edit
no 16 bit ? no 3MB (1MB piano) N/A N/A N/A no

Source

Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
Wave digital 167 +-4 mix: key velocity start:velocity pressure Env1-3 key LFO MIDI-CC Mod-Wheel Pitch-Wheel noise pedal velocity portamento no

Filter

Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
F1 digital DSP no 2-3 pole low pass (shares 4 poles with multimode) pressure Env1-3 key LFO MIDI-CC Mod-Wheel Pitch-Wheel noise pedal velocity no no
F2 digital DSP no 1-2 pole low or high pass (shares 4 poles with low pass) pressure Env1-3 key LFO MIDI-CC Mod-Wheel Pitch-Wheel noise pedal velocity no no

Envelope

Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
Env1 4 4 yes no no velocity key velocity:attack
Env2 4 4 yes no no velocity key velocity:attack
Env3 4 4 yes no no velocity key velocity:attack

LFO

Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO triangle, sine, sine/triangle, positive triangle, positive sine, up saw, or square yes no no no pressure Env1-3 key LFO MIDI-CC Mod-Wheel Pitch-Wheel noise pedal velocity no
Rompler Models
VFX VFX-SD SD-1 SQ-1 SQ-1 Plus SQ-1 Plus 32 Voice SQ-R SQ-R Plus
SQ-R Plus 32 Voice SQ-2 SQ-2 32 Voice KS-32 TS-10 TS-12