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Yamaha Portasound PSS-470 Keyboard Synth


 Product Description

Information sourced from "Vintagesynth.com"

The PSS-470 was released by Yamaha in 1987, and was clearly aimed at non-professionals. This is the type of keyboard that would not be surprising to find in the musical instrument section of a major toy store. It's a simple synth built in a plastic case, with built-in stereo speakers, stereo outputs and 49 mini-sized keys. It's designed to be lightweight and portable. Yet at its heart it has inherited Yamaha's DX series digital FM synthesis, which is enough to garner this synth some attention.


  • Polyphony - 8 voices + 1 Drum kit (5 drum sounds)
  • Oscillators - 2 FM Operators
  • Filter - Spectrum and Modulation sliders
  • Envelope - Attack and Decay sliders
  • Effects - Sustain, Vibrato, and Duet
  • Sequencer - Auto-Bass-Chord: Automatic bassline and chord accompaniment feature. Chords are selected using the lower octaves of the keyboard.
  • Custom Drummer: Add any of the 5 drum sounds to the selected rhythm pattern in real-time.
  • Patterns - 12 Rhythm patterns for the Drum kit and Auto Bass Chord: Pops, Disco, 16 Beat, Rock n Roll, Country, Latin, Bossa Nova, Reggae, Big Band, Slow Rock, March/Polka, Waltz
  • Arpeggiator - None
  • Keyboard - 49 mini-keys
  • Memory - 21 Preset synth sounds. 12 Drum kit rhythm patterns.
  • Control - None
  • Date Produced - 1987

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