Want to tame the gain a bit in the Crunch and Ultra channels? This kit contains a standard ECC83S for V1, two ECC832's for V2-V3 and a balanced ECC83S for the phase inverter in V4. The default power tubes are a matched quad of the JJ 6L6GC’s but you can configure this kit to use the JJ 5881’s by clicking on the "Customize" button!