Synth Museum

"Synthesizer preservation via research and education."

The Web SynthArk


Sequential_Circuits Multi-Trak

Multi-Trak (image courtesy of SoundDoctorin)

Released: 1985

MSRP: $1499US


Updated velocity sensitive SixTrak. Architecture Class: Conventional (subtractive).

Ebay Description:

The Sequential Circuits Multi-Trak is a (velocity sensitive) 61 key, 6 voice multitimbral analog synthesizer, featuring a programmable oscillator, resonant low pass filter (24dB CEM), 3 envelopes, and LFO, along with 100 program memories, arpeggiator, 4 track (1600 note) sequencer, stereo chorus, individual outputs, and MIDI.


Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
61 keys ? ? no stereo 6 individual MIDI: IN OUT tape no no yes 15VAC 1.25A (6 pin DIN)


Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
Six-Trak Max Split-Eight Multi-Trak no 100 tape MIDI SysEx menu driven LCD display


Multitimbral Polyphony Unison Architecture
6 6 yes VCO+Noise->VCF->VCA


Effects Pan Modulator Volume Modulator Headphone
chorus no VCA-EG Velocity no


Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
up/down latch pedal 4 track 1600 notes pedal Pitch-Wheel Mod-Wheel MIDI


Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
no no MIDI pedal? MIDI? yes 1


Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
VCO analog pulse saw triangle 4 no PWM:LFO glide LFO MIDI-Pitch Pitch-Wheel VCO-EG
Noise analog noise - no no no


Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
VCF analog CEM3372 yes 24dB low pass key LFO VCF-EG VCO:triangle velocity no


Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
VCO-EG sustain attack decay release no yes no no no
VCA-EG sustain attack decay release no no no no no
VCF-EG sustain attack decay release no no no no no


Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO square triangle no no no Mod-Wheel MIDI-CC1 velocity no
Conventional Models
Prophet 5 Prophet 10 Pro-One Prophet 600 Prophet T8 Fugue Prelude Velocity 6
Six-Trak Max Multi-Trak Split-Eight Prophet VS Prophet VS Rack