Want a really rich and smooth tone and the earlier breakup of the JJ EL844's? This is our Low Output Gold Pin Option Retube Kit for the Orange Dark Terror, Jim Root Terror and the OR15H Amps. It contains a matched pair of JJ EL844's for power to drop the overall output a couple decibels, a JJ ECC81 for the FX loop along with three Gold Pin ECC83S's one being current balanced for the phase inverter in V4.