Cadorman
Ambassador of the Catocaster
So, I received my Orange OR15 the other day and it came loaded with JJ tubes. It has 4 gain stages in V1 and V2, V3 is the PI, these are all 12AX7s, V4 is a 12AT7 for the loop. I am replacing the 12AX7s with NOS GE 12AX7s and probably won't mess with the 12AT7. This is my first amp with EL84 power tubes. It sounds great, but could I coax more out of it with a different pair of power tubes? New production? NOS? What brands? Tell me your secrets.

