This is our Blues Option Retube Kit. We put it together specifically for Blues players and players in general that want a smoother and more natural sounding OD channel! This will drop the gain down in the drive channel by about 40%. This kit contains a matched pair of JJ EL84's for power along with an ECC832 for V1, a standard ECC83S for V2 and a balanced ECC83S for the phase inverter in V3. Just let us know in the comments section if you're looking for max headroom, moderate, or an early breakup so we can select a proper grade for the power tubes.