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SYNTH TABLES
Sequential Circuits Six-trak and Max
Cable and MIDI requirements
The SC Six-Trak uses a standard MIDI cable.
Sequential Circuits Six-Trak Controls
Osc 1 Range (1) Not Used LFO1 Wave (26) Triangle, Square
Osc 1 Wave (2) Not Used LFO1 Delay (27) Not Used
Osc 1 PW (3) Oscillator Glide Rate LFO1 Speed (28) Active
Osc 1 Tune (4) Not Used Chorus/FX Rate (29) Not Used
Osc 1 LFO Mod (5) Not Used Chorus/FX Mode (30) Not Used
Osc 1 ENV Mod (6) Not Used HPF (31) Not Used
Osc 1 Mode (7) Not Used LPF Cutoff (32) Active
Osc 1 PWM (8) Not Used LPF Resonance (33) Active
Osc 1 Level (9) Oscillator / Noise Mix Filter LFO Modulation (34) Active
Noise Level (10) Not Used Filter ENV Modulation (35) Active
Osc 2 Range (15) Not Used (Uses Tune control for Range) Filter Key Follow (36) Active (off / half / full)
Osc 2 Wave (16) Sawtooth, Triangle & Pulse in any selection Filter ADSR EG1 (37-40) Active
Osc 2 PW (17) Active Filter Mode (41) Filter Envelope Polarity
Osc 2 Tune (18) Coarse Tune VCA ADSR EG2 (42-45) Active
Osc 2 Fine Tune (19) Fine Tune VCA Mode (46) Not Used
Osc 2 LFO Mod (20) LFO Program Amount VCA Level (47) Active
Osc 2 ENV Mod (21) Env Modulation
Osc 2 Mode (22) Pulse LFO Modulation On/Off
Osc 2 PWM (23) Filter/Osc Tri Modulation
Osc 2 XMod (24) Oscillator Env Normal / Inverse
Osc 2 Level (25) Not Used
Sequential Circuits Sixtrak Notes
The Sequential Circuits Sixtrak uses a Curtis CEM3394 “synth on a chip” for each of it's six voices. The CEM3394
IC contains the VCO, VCF & VCA.
The Oscillator Tune and Range are combined and placed on the Oscillator 2 Tune (coarse) and Fine Tune
controls.
The Filter Keyboard Track has three possible levels, Off, 50% and 100% and the Filter Mode button will invert the
filter envelope. Green is a normal envelope and red is inverted.
The Sixtrak needs to be placed into Parameter Edit mode by pressing Control Record then pressing 4.
This patch can also be used on the Sequential Circuits MAX. The MAX needs to be put into parameter edit mode
by pressing 'Erase' and then keying in 34. The default midi channel on the MAX is 3. The MAX has no unison
function and the Filter LFO has no function.
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