This is our Gold Pin Option for the Low Output SRV kit. It's no secret that Stevie played his amps cranked and preferred a little cleaner sound from the front end allowing you to hear more power tube breakup. It contains a matched quad of JJ EL844's (to drop the output a couple decibels) along with a Gold Pin 5751 for V1, a standard Gold Pin ECC83S for V2 and a graded high current Gold Pin ECC83S for V3.