The EW20 works with a tone module. It is a 4-operator FM synthesizer. The synth module appears to be a stripped-down version of the WT11.
Year Released: 1989
Polyphony: 8 notes
Preset Patches: 64
Preset Performances: 32
Effects: 5 types of reverb
Screen: 16 x 2 character LCD
Power Consumption: 8 watts
Dimensions: 490 mm x 60 mm x 60 mm (controller), 360 mm x 200 mm x 60 mm (module)
Weight: 0.28 kg
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