Six-Trak

Sequential_Circuits Six-Trak

Released: 1984

MSRP: $895US

Synopsis:

Z80/CEM3394 based synth with a predominantly digital User Interface (i.e. no more dedicated knobs). Multitimbral (via sequencer), single oscillator P600. Architecture Class: Conventional (subtractive).

Ebay Description:

The Sequential Circuits Six-Trak is a 49 key, 6 voice multitimbral (via sequencer) analog synthesizer, featuring a programmable oscillator, resonant low pass filter (24dB CEM), 3 envelopes, and LFO, along with 100 program memories, arpeggiator, 6 track (800 note) sequencer, and MIDI.

Physical

Form Factor	Dimensions	Weight	Audio Input	Audio Output	Communication Port	Control Input	Control Output	Switch Input	Power
49 keys	H:1.5in W:28in D:12in	17.5lbs	no	stereo (TRS)	MIDI: IN OUT	no	no	sequencer start/stop	wired

Interface

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

Architecture

Multitimbral	Polyphony	Unison	Architecture
6 (via sequencer)	6	yes	VCO+Noise->VCF->VCA

Output

Effects	Pan Modulator	Volume Modulator	Headphone
no	no	VCA-EG	shared

Control

Arpeggiator	Arpeggiator External	Sequencer	Sequencer Memory	Sequencer External	Continuous	Program Change
up/down latch	pedal	6 track, 2 song	800 note	pedal MIDI	Pitch-Wheel Mod-Wheel	no

Keyboard

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

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	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	no

Conventional Models

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