OTL amps, my pick for the tube used.

Also, I couldn’t find any detailed specifications for output power or anything else for the OTL-150 at the Navison site (just some references to "coming soon"), although that has no relevance to my posts in this thread.

Same here, I have no idea what he's looking at, or the relevance to the ME1500 doing 100amps either????

Cheers George

I don't know about you folks out there but I'm getting dizzy. What does any of this have to do with how an amp sounds. It might have to do with how loud an amp will go but that is about it.

Looking at those spacings the word ‘Chernobyl’ keeps meandering into my subconscious.

Caveat emptor

I have a pair of Audio Mirror monoblocks that use the 6C33C tube and have more than 50 hours and no problems at all. I like the sound of these tubes - very clear, uncolored, balanced and almost no real sonic signature. Tubes with other amps I had always seemed to accentuate some part of the music - EL34s seemed slightly loose in the bass, but great for voices, KT120s were zippy on top, etc. etc. The 6C33Cs are auto-biased according to the Audio Mirror website. Maybe that is why I have had no tube issues yet. But I do have a backup quad! LOL.

From a glance at the manufacturer’s website your amp appears to be far more sensibly designed thermally.