BROWN BOX, new, by AMPrx For decades, knowledgeable techs and players, understanding the fundamentals of tube amplifiers and tone, have utilized voltage optimization as an essential and permanent part of their rigs....

IN STOCK NOW! Call the shop. (314)647-7795 Think about it... your vintage Marshall, Fender, Gibson, Vox, Orange or Hiwatt amp that you cherish for it's tone doesn't sound nearly as good as it could. These amps were...