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Casio CZ-1 - Image 1

Casio CZ-1

KeyboardDigitalPolyphonic

Back in 1986, this synth pioneered phase distortion synthesis in a full-sized keyboard format, delivering those signature glassy, metallic tones that defined so much 80s pop and still cut through modern mixes today.

At its core, it packs 16-voice polyphony with dual digitally controlled oscillators per voice and incredibly flexible 8-stage envelopes for sculpting everything from punchy basses to ethereal pads. The 61-note velocity-sensitive keyboard with monophonic aftertouch and a modulation wheel brings real expressiveness, while split and layer modes plus multitimbrality let you stack sounds creatively. Controls are straightforward with dedicated sliders and buttons for editing, onboard stereo chorus adds lush depth, and full MIDI In/Out/Thru plus 64 presets, 64 user patches, and cartridge expansion keep it versatile. Measuring about 40 inches wide and weighing 13kg, it's a sturdy stage beast with headphone out, sustain pedal input, and adjustable glide.

Players love its unique voice—distinct from FM synths like the DX7 but every bit as tweakable—and the user-friendly interface that makes deep edits approachable. It's held up as the top performer in Casio's CZ lineup, especially live, though some note the non-weighted keys and lack of a built-in sequencer as trade-offs for its era.

Released

1986

Status

Discontinued

Synthesizer
Format
Keyboard
Type
Phase Distortion
Internal Battery
No
Voice
A/D
Digital
Polyphony
Polyphonic
Oscillators
2
Oscillator Type
DCO (Digitally Controlled)
Voices
16
Filter
No
Envelopes
8
LFO
-
Effects
Chorus
Expression
Aftertouch
Monophonic
Velocity
Yes
MPE
No
Additional
-
Software
-
I/O
Audio In
-
Audio Out
Stereo
Headphone
1x 1/4" TRS
MIDI
In, Out, Thru
MIDI Type
DIN (5-pin)
Ports
Sustain Pedal
Wi-Fi
No
Workflow
Arpeggiator
No
Sequencer
No
Mod Matrix
No
Memory
64 preset, 64 user patches, 64 patch external cartridge
Measurements
Dimensions
1025mm W x 341mm D x 127mm H
Weight
13 kg
Last updated Feb 25, 2026