SEQUENTIAL CIRCUITS MULTI-TRAK | Analog Synthesizer 1985 | HD DEMO 

(c) 2019 by AnalogAudio1
Synthesizer demo of the analog synthesizer SCI Multi-Trak from 1985.
For reverb effects, a Lexicon MPX 500 was used, along with a Korg SDD-3000 for delay effects. The sounds were programmed by me, except the last patch, that was a factory sound.
The Multi-Trak has 1 VCO per voice (6 voice polyphonic). It also has PWM, 3 ADSRs, 24 dB VCF, noise generator, LFO with different waveforms and a chorus effect. It has a sort of "slimmed down polymodulation": VCF modulation by VCO for dirty and metallic timbres. Unison mode for fat, monophonic sounds. Great "stack mode" allows layering of six different patches. Velocity sensitive keyboard. The Multi-Trak also has a little 6 track sequencer and an arpeggiator built in.
The sound architecture is quite simple, but still powerful enough to produce interesting and genuine vintage "Sequential synth sounds" of the eighties. If you're into that, you'll love it. The basic sound is very similar to the Six-Trak, but the behaviour of the envelopes seems to be somewhat different, maybe less percussive. Today, the Multi-Trak is a nice and rare synth (not too many were produced, it didn't sell well).

Наука