You might check out the VAC amps that use 300B tubes push-pull. Nothing but an SET is going to sound like an SET, but the VAC amps sound pretty darn good.
SETs vs. Push/Pull
Say, people! I've been a tube guy for about 22 years and an SET guy for 7. Am seriously thinking of selling my Air Tight 300B and getting a P/P with more power. Anyone done this and if so, how are things going? Any suggestions for replacement amps that can compete musically with SETs?