From the Price Guide

Overview

The first version of the Ross Phase Distortion came in a purple casing, with the earliest specimens reading "D/P Combination" rather than Phase Distortion. 

Not to be confused with the less valuable Phase Distortion R70 model in a black or white casing with a "Recycle" knob instead of "Intensity."

Years of Production: 1979

Product Specs

Brand
Model
  • Phase Distortion R1
Finish
  • Purple
Year
  • 1979
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