Looking for a vintage vibe with the earlier breakup of the JJ EL844? This is the Low Output ECC803S V1 Option Retube Kit for the Classic 30, Classic 50 or Delta Blues. This Retube Kit contains an ECC803S for V1 for a little less gain, a thicker mid and a little more high end. We follow that up with a standard ECC83S for V2, a graded high current ECC83S for V3 and a matched quad of JJ EL844's for power (to drop the output a couple decibels).