I use a Mark III (Red Stripe) combo (c90 speaker) w/ a thiele cab (EV speaker) combination. I play mostly classic rock/blues style on a Tele and Les Paul. I'm looking for some good suggestions on preamp tubes to try. I use Mesa 12ax7s in the preamp and Mesa 6L6 454s and EL34 442s in the poweramp section.javascript:emoticon(':lol:')