Tube Mono-Block Recommendation

+1 to Rushton's response. What is that Atma show trick? Pulling out an output tube when the amp is playing?

And yes Atma was the first amp that jumped to mind given your criteria.

Dragon_vibe, if your speakers require the Atma-Sphere MA-2 model amps as the right match, then yes. They are large, they have a lot of tubes, they are hot, and they burn a lot of electricity when not in stand-by. They are also GLORIOUS and will punch all of the sonic hot buttons you specified as your criteria.

My wife and I have used MA-2 amps to drive Avalon Acoustic Eidolon speakers for over a decade. We'd never consider another amp. In that decade of use, I've replaced 6 output tubes - *SIX* only. These output tubes run a long long time.

And, you will have one of the true gentlemen of High End Audio, Ralph Karsten, supporting you.

Marc Mickelson at The Audio Beat has consistently listed the MA-2 as his favorite amp:

Keeping the notion of "best" in mind, let's say that I don't have the luxury of picking five amps. I have to choose just one -- the amp that will be the conduit through which all of my music, digital and analog, passes. Which will it be? Solid-state or tubes? Push-pull or single ended?

Give me OTL in the form of the MA-2 Mk 3.1s and I'll live musically ever after.

See his full review at:
http://www.theaudiobeat.com/equipment/atma_sphere_ma2_mk31.htm

Good luck in your search.
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Dragon, how do you like the sound of Bob's tube mono block? Not sure if you read my prior post about simple mods to Bob's amp that will significantly improve the sound of the amp. You can drive 1 ohm loads with his amp.

I did not find it accurate enough. It is a very good amp and gives plenty of power. They also run pretty cool. No gripes but honestly it was not fast enough or accurate enough and I preferred my Clayton SS more.

I can tell you one thing, I have 100db Danley horns being used for the Theatre room. I find ATI amplifiers excellent in sound and build. Specially when you use the right power cord and fuses. ATI Amplifier are by far the quietest SS amps around. The Bob Carver amps noise floor is extremely quiet. Nearly as good as the ATI. Honestly I would keep it but this whole move and stuff just made me lose my confidence in the company altogether. Bob carver tube amps are prob one of the best around at the current prices.