Multi-Trak

Sequential_Circuits Multi-Trak

Released: 1985

MSRP: $1499US

Synopsis:

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.

Physical

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)

Interface

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

Architecture

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

Output

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

Control

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

Keyboard

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

Source

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

Filter

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

Envelope

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

LFO

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

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