The PSS-80 uses square-wave-based sound generation. It has 8 built-in voices, but up to 320 variations are available via the voice variator buttons, labeled "short", "long", "bright", and "mellow".
Year Released: 1989
Keyboard: 32 keys
Polyphony: 6 notes
ROM: 8 sounds, 8 rhythms
This keyboard has built-in mono speaker(s).
Yamaha Portasound PSS-80 rare RED ver. TESTED w/Box FREE shipping ($135)
Yamaha PSS-80 1980’s keyboard synthesizer ($76.35)
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Yamaha PSS-80 PortaSound Service Manual 1989 ($15)
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