We put this kit together just for Blues players! This is our Blues Option Retube Kit and it contains a matched quad of JJ EL84's in a hotter grade for power along with a standard ECC83S for V1, an ECC832 for V2 and a graded high current ECC83S for V3. This kit uses an ECC832 in V2. It cuts down the gain by about 40% in the drive channel but retains a nice crisp attack and warm tone.