MXR Script Phase 90Maker: MXR Model: Script Phase 90 Condition: New Description: Often imitated but never duplicated, the elusive vintage script Phase 90 is at the top of the list for pedal collectors world wide. The original versionavailable from the companys inception to the late 70spractically defined the classic phase shifter sound, and was heard on everything from hard rock, jazz fusion, to funk hits. The MXR Custom Shop Script Phase 90 brings back the headroom and