Please check back, for additional mods

SR&D Factory Engineering Updates

Original Rockman, II, IIB and X100 Echo on/off modification

Carver PM-175 to PA500 convertion - Brite switch circuit, clipping circuit and 1/4 inch TR speaker jacks

XP Series "A" Mod includes Distortion Levels, EQ Topology modification, Noise Reduction & Reverb modification

DigiTech MEQ Dual 14 to SR&D PGE2 band freq conversion