why not use the Atma-shere MA-1 for the whole thing? in my experience the OTL’s do bass very well probably the best I’ve heard from tubes and much clearer then many SS amps out there. you could get another one for synergy if bi-amping is a must. 5ohm load could be an issue if it dips any lower.
will say will all those tubes and class A amps I bet your room is toasty
will say will all those tubes and class A amps I bet your room is toasty