Casio CZ-5000 (1985)
A digital synthesizer with 8-voice polyphony and an integrated 8-track sequencer, released as a flagship model in Casio's CZ series.
Overview
The Casio CZ-5000 is a digital keyboard/synthesizer released in 1985 as part of Casio's CZ series. It stands out in the lineup as one of the sequencer-integrated flagship models, offering advanced composition capabilities for its time. Built around phase distortion (PD) synthesis, the CZ-5000 delivers a range of digital tones—from analog-like emulations to bright, glassy textures—while maintaining user-friendly programming through clearly laid-out envelope stages and parameters.
Specifications
| Polyphony | 8-voice |
| Keyboard | 61 keys |
| Tones | Up to 64 tones |
| Features | Modulation wheels, stereo chorus effects |
| Sequencer | Integrated 8-track sequencer |
| Synthesis method | Phase distortion (PD) synthesis |
| MIDI | Supported |
| Outputs | Line-level outputs |
Design
The CZ-5000 uses phase distortion (PD) synthesis, a digital technique that alters a sine wave's phase by varying the increment rate of a phase accumulator. It marked a significant step forward in the CZ series by integrating an 8-track sequencer designed for multi-timbral use. The instrument's programming interface emphasizes accessibility, with logical parameter organization and clear envelope stage controls that simplify digital sound design.
Context
The CZ series was produced by Casio from 1984 to 1987, targeting musicians who wanted affordable and approachable digital synthesis. The CZ-5000 was released in 1985 as part of this effort, positioned among the flagship models with sequencer integration. At the time, Yamaha dominated the market with FM synthesis, which many found difficult to program; Casio's CZ series offered a more intuitive alternative. The line was inspired by collaborations such as the Cosmo Synthesizer project with composer Isao Tomita.
Market
The CZ-5000 has gained recognition among collectors and electronic music producers, with examples listed at $499.99 in the current used market. Its combination of low cost, unique sonic character, and sequencer functionality continues to make it a sought-after instrument for vintage synth enthusiasts.
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