1986 (Dec.)
Initially sold for ¥18,400
The Yamaha PSS-170 is the successor to the PSS-160 and PSS-150, the entry level keyboard to the Portasound PSS line. 100 voices, 10 drum rhythms with fill-ins and an accompaniment section. Voices are based on a 2 operator FM synthesizer chip (the Yamaha YM2413) that can be slightly altered with sustain, vibrato, or portamento effects.
There's a single mono speaker, but it does have a headphone/aux connector.
