Want to ratchet down the gain in the soak channel? This is our Blues Option #1 Retube Kit and it contains a matched quad of JJ EL84's for the power section. For the front end we use a standard ECC83S for V1, an ECC832 for V2, a standard ECC83S's for V3 and a balanced ECC83S for the phase inverter in V4. This maintains your clean channel gain and drops the gain in the soak channel for a more open sound. Great for Blues!