Thank you for Great comments, this is the most I have learned when it came to tube amps. I'm trying to find a way to biamp using solid state for bass and tubes for the mid/tweeter. My existing solid state mono block amp has plenty of power for my main speakers, but I'm pursuing a fantasy that biamping with a tube amp would generate benefits. I'm looking at the recently designed Ss/tube combo amplifiers from McIntosh as a way to better address versus doing four separate monos to do biamping, which may not be that worthwhile to do.
amazing comments, and very very technical, clearly a lot to think about.