One of the first multi-timbral synthesizers ever made, this 1984 gem let you stack six distinct analog sounds in one compact box, revolutionizing how musicians sketched out layered arrangements on the go.
At its heart are six voices, each powered by a CEM3394 chip handling a single analog VCO with sawtooth, triangle, and variable-width pulse waveforms—mix them for rich timbres—paired with a resonant 24dB/octave low-pass filter from a CEM3372, plus software-generated LFO and three ADSR envelopes per voice for osc, filter, and amp control. Glide and PWM add expressive motion, while the 49-key velocity-sensitive keyboard (no aftertouch) pairs with pitch/mod wheels and a single-knob editor displaying params on a simple LED readout. It's got an 800-note six-track sequencer for multitimbral sequencing, arpeggiator, 100-patch memory, MIDI In/Out, and a lone stereo audio out on its 28-inch-wide, 17.5-pound portable frame.
Players love its gritty, warm analog character—think fat Jarre-style pads or speaker-shaking unison leads—plus the sequencer's creative workflow, though some note the digital interface feels dated next to knob-per-function designs, and heavy MIDI use can glitch the display. Still, its raw vibe keeps it a go-to for vintage enthusiasts chasing that classic Sequential punch.