I have a fender bandmaster reverb 69. It has been tchek by a good tech. he changed the bias circuit to the blackface spec, put new power tubes etc etc. I also have the original 2x12 cabinet. I changed the speakers for 2 weber 12f150 8ohms 50w, wired in parallel. so i was all psyched to play with this amp with my band. but i was so disappoint to hear that it was not loud enough... my other guitarist play a tele throught a blackface bandmaster 64 and he is almost twice louder than i am. ok maybe not 2x as loud as my BMR, but definetly louder! his BF BM 64 has been mod in the past to a 100w 4x6L6. he turned it back to the original 2x6L6, but kept the transfo he had when it was a 100w amp. that's why i consider upgrading to a bigger OT and hope it will provide me a bigger clean. i'm 99% sure it's not a mechanical problem. now to achieve the sound i want (a good loud clean, just before the breakup) and to keep up with my guitarist and the band, i have to plug my guit throught the BMR and my hot rod deluxe. i don't want to have to always use two amps. so i was thinking about changing the OT for a twin reverb OT. by doing this mod, would it bring my sound to a new sonic dimension? what i want is a big loud clean! will it be in the same range as the dual showman reverb/twin? i know going to a twin reverb would be a very good move, but i really don't want to play with another amp. i love so much the BMR!! I was also considering transforming it into a showman dual reverb (wich is a twin head). I'd rather do this mod than having a twin, because the head + cab is what i want. but for now, only changing the OT would be cheaper. so my question is: how much will i gain by upgrading the OT??