Year Released: 1990
Keyboard: 49 mini keys
Polyphony: 28 notes
Preset Patches: 100
User Songs: 3
Preset Styles/Rhythms: 50
Effects: 6 harmony types
Power Consumption: PA-3, PA-4, or PA-40 DC power adaptor.
Dimensions: 668 mm x 265 mm x 83 mm
Weight: 2.5 kg
This keyboard is MIDI-enabled.
MIDI Connections: Standard 5-Pin MIDI in and out connections.
This keyboard has built-in 2-watt 2 x 10 cm speaker(s).
Batteries: 6 x C
Yamaha PSS-590 PortaSound 90s AWM/FM Synthesizer Workstation w/ MIDI + Original Box & Manual ($272.12)
Yamaha PSS-590, excellent cond., power supply 1990 ($142.42)
Yamaha PSS-590 PortaSound Service Manual 1990 ($15)
Yamaha PortaSound PSS-590 Service Manual [Three Wave Music] ($12)
Power Supply Replacement for YAMAHA PSS-590 KEYBOARD ADAPTER UK 12V ($14.39)
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