The Yamaha PSS-270 is a portable keyboard synthesizer released by Yamaha in the early 1990s. It was used by many professional musicians, including Daft Punk, The Prodigy, and Aphex Twin. The PSS-270 is a monophonic synthesizer with a built-in sequencer and a variety of sound-shaping features. It has a 32-note keyboard, a built-in speaker, and a headphone jack. It also has a built-in arpeggiator, a pitch bend wheel, and a variety of sound-shaping controls. The PSS-270 also has a built-in drum machine with a variety of preset rhythms.
Lightweight and small, about the size of a Yamaha DX100. It has 100 preset voices based on a 2 operator FM synthesizer chip (the Yamaha YM2413) that can be slightly altered with sustain, vibrato, portamento or “stereo symphonic” effects.
No drum pads, but a pre-recorded rhythm section is available, as well as some basic accompaniment. The demonstration song is “Just the Way You Are” by Billy Joel. There are speakers on board but it does provide stereo output RCA connectors, along with a headphone jack. It can run on batteries or via an external power adaptor.
Comes with period headphones.