My SET monoblocks (845 outputs, EL34 drivers. 6N7G inputs) designed and built by a friend, have huge trannies and the 12w output is conservative. They never run out of steam but are rolled off at the bottom so that they don't have to waste power trying to drive that last octave. That's what the sub amp is for.
All you can do is try yours and see if they have enough oomph. Certainly the Ref 3s love tubes. Good luck, Dave
All you can do is try yours and see if they have enough oomph. Certainly the Ref 3s love tubes. Good luck, Dave