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The PS-3 contains both a pitch-shifter and a delay. There is seven pitch shift modes, and three delay modes as well as an expression mode. The pitch shift level is selectable in 26 steps – 24 chromatic steps over a +/- 1 octave range plus 2-octave up-down capability. The delay is up to a maximum of 2000 ms just like the DD-5.


Boss PS-3 Digital Pitch Shifter/Delay
  • Delay, 32ms – 125ms
  • Delay, 125ms – 500ms
  • Delay, 500ms – 2000ms
  • Detune, adds a slightly pitch-shifted sound to the input sound to create a detune effect
  • Fast Pitch Shift, very little delay in pitch shifted sound. Good for slightly shifted sounds.
  • Slow Pitch Shift, more delay in pitch shifted sound but very accurate. Good for greatly shifted sounds.
  • Inverse Pitch Shift, a mode where the pitch shifted sounds are reversed
  • Detune & Detune, adds two slightly pitch shifted sounds to the input signal to create a fat detuned effect.
  • Detune & Pitch Shift, detune output from Output A and Pitch Shifted sound from Output B
  • Pitch Shift & Pitch Shift, Pitch shifted sounds from both output. Pitch A controls Output A and Ptch B controls Output B
  • Expression, A connected expression pedal will set the pitch shift between Pitch A and Pitch B


  • Controls: Balance, Feedback, Pitch, 11-way Mode switch
  • Connectors: Input, Expression Pedal, Output A, Output B, AC Adaptor
  • Current Draw: 70 mA (DC 9V)
  • Recommended AC Adaptor: PSA Series


  • Pink – Made In Taiwan
  • Dark Gray – Made In Taiwan

The PS-3 was sold from March 1994 to January 1999.