Synth Museum

"Synthesizer preservation via research and education."


The Web SynthArk

Casio FZ-20M

Casio FZ-20M Synopsis

FZ-10m with SCSI

Voice architecture is typical subtractive (i.e. Waveform->DCF->DCA).

eBay Description

The FZ-20m is an eight voice, monotimbral digital synthesizer/sampler rack (3U) with flexible I/O (2 inputs, mix output, 8 individual outputs, MIDI, RS232, SCSI). Waveforms can be sampled (16b, 9/18/36kHz, 64 sample points, 2MB memory), additive (48 harmonics), hand drawn (similar to Korg DSS-1) or preset (6 waves available). Sample editing includes 2 loops, reverse, mix, cross mix. Resonant, low pass digital filter and digital amplifier are controlled by 8 stage envelope generators, LFO and velocity/aftertouch. Patch memory contains 8 user locations (also has 3.5" DSHD disk drive).

Key Features

  1. Aftertouch: Modifies LFO and EGs
  2. Architecture Class: additive subtractive sampler
  3. Audio IO: Headphones, 2 audio inputs 8 individual, TRS and XLR mix
  4. Audio Source: The waveform can be a sample, an additive wave (48 harmonics), hand drawn (similar to Korg DSS-1), or a preset wave (i.e. random, pulse, saw, square, double sine, saw/pulse). Samples are 16 bit (9, 18, 36kHz) with up to 64 sample points. Sample editing includes 2 loops, reverse, mix, cross mix.
  5. Communication Interface: MIDI In, Out, Thru, 25 pin RS232 communication port SCSI
  6. Effects: None
  7. EG: Dedicated, 8 stage EG's modify DCF and DCA
  8. Expansion: 3.5" 2HD Disk drive
  9. Filter: Resonant, low pass
  10. Form Factor: 3U rack
  11. Key Scaling: Switch samples and modify EGs rate/level
  12. LFO: Modifies pitch, amplitude, or filter level. Waveforms include up saw, down saw, random, sine, square and triangle. LFO also features delay and key sync
  13. Memory:
    • Multi Memory: N/A
    • Patch Memory: 0 preset, 8 user
    • PCM Memory: N/A
    • Sample Memory: 2MB
    • Sequencer Memory: N/A
  14. Multitimbral: No (only via sample assignment)
  15. Pedal Inputs: None
  16. Performance Control: None
  17. Polyphony: 8
  18. Power: AC (IEC C13 to NEMA 5-15P)
  19. Released: 1987 1987
  20. Sequencer: No
  21. Signal Class: digital
  22. Velocity: Switches samples and modify pitch and EGs rate/level