POWERBLOCKS! I still use mine. They were really ahead of their time, all the goodies are on the back. There’s just no reason to lug so much freight around to shows when something so small and light allows me to get a perfectly useable and audible sound. Can you talk me with how you’ve got them set up there? I don’t think I’ve seen them hooked up that way before. Are they modded in any way?
As for the original question, I don’t care. Even from a studio production standpoint, I care about what best creates the sound that serves the song. I don’t care what’s inside. My band’s second album has one of our more distinctive and most complimented (here, webzines, even actual published magazines) guitar sounds and that mostly came from a completely solid state, one off Randall I haven’t seen anyone else own or talk about.
I was banging my head against the wall fighting to get the sound I wanted with all kinds of all tube heads, your classic industry standard metal guitar speakers, fancy tube preamps and EQs and so on and none of it was doing it for me. Then I pulled out that wooly, shaggy carpet covered old SS head into much less talked about speakers and bam! The sound was there immediately. Lately I can get the sounds I want with what I have very easily, I can blend amps together for new sounds without much of a struggle, including high wattage, all tube monsters (example in my tri-amping thread in this sub) but it has more to do with their voicings and knowing how to better play to their strengths than that they have tubes in them and that total sleeper of an SS amp still adds the secret sauce sometimes.