Daniel’s modded PP-18

A number of 18W amp builders have wanted the amp’s natural overdrive tone at lower room levels. By far the smartest approach is reducing the power supply voltage inside the amp, and Daniel’s PP-18 has just such a modification. Called VVR (or VCB) a MOSFET-based circuit developed by some amp gurus at www.hallamplification.com, it adds an extra control to the front panel to control the high voltage inside the amp. As for the finish: “Fake cowhide… Yeah, I know, but better than the bright orange fur my wife wanted”.