Ensoniq SQ-80

Back in 1988, this synth arrived as a clever evolution of Ensoniq's groundbreaking ESQ-1, packing in 43 extra waveforms—including transient attacks like violin bows and mallet strikes, plus five drum kits—for sounds that bridged crisp digital edges with creamy analog warmth.

At its core, it blends wavetable synthesis via three digitally controlled oscillators per voice (from a library of 75 waveforms) with a resonant 24dB/octave lowpass filter using classic CEM3379 chips, delivering that sought-after hybrid tone. Four multi-stage envelopes and three LFOs feed into a flexible modulation matrix that supports oscillator sync, ring mod, and polyphonic aftertouch across its 61-key velocity-sensitive keyboard, making expressive playing a joy. The user-friendly interface shines with a large dual-row fluorescent display and direct-access buttons, sidestepping menu-diving frustration, while an onboard 8-track sequencer, 40 onboard patches (expandable via floppy drive or cartridge), and full MIDI In/Out/Thru keep it studio-ready in a sturdy 40-inch wide, 29-pound chassis with pitch/mod wheels and pedal inputs.

Players have long praised its rich, characterful voices—organs, pads, basses, and effects that hold up today—along with the rare poly aftertouch and sequencing power, though some note the button-only editing demands patience compared to modern knobs. It's a vintage gem that rewards deep dives with timeless, versatile tones.