Tubes vs Solid State


I have have been listening to music all my life but have only recently started experimenting with different amplifier and/or speakers/component combinations. I have recently moved from Parasound JC 1's to Classe Cam 400 monoblocks which I have both loved (maybe the prior a bit more) and are contemplating another move. I have been very intrigued by tube monoblocks and have the opportunity now to move to ARC ref 600's. I can also get Mark Levinson 33's for about the same cost. I am just uncertain about the Ref 600's as I am worried that I might be disappointed in the tube sound.

Can someone with more experience perhaps help me out here ? I am using the amps as part of a home-theatre setup driving 802 d's and other 800 diamond fronts and rears. I would really appreciate some good advice here.
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Wolf. I had a neighbor once who was an EE professor, he told me you can't build a meter fast enough to show what an amps really doing.
Wolf- I have started to see people changing OP amps like tube rollers, and further people with the means often have their gear modded with different "better" capacitors and the like. It happens that tubes are easy to change in most circumstances. As you said tubes are more fun I agree, part of that fun has been rolling some of the best tubes ever made into my gear.
The meters on my Squeezebox tell the input level balance in an obvious visual format, and it might be possible to correlate this to amp output if I cared about that. I do understand there are some who tinker with SS amp innards, but for instant gratification fans tube rolling is hard to beat.
Schubert, you only need to care about what an amp is doing on average. So the meter doesn't have to be fast, just accurate. However, my position that you must do final adjustments while listening doesn't cease to be valid, for other reasons. But bridged monos are a whole other ball game. Here you have no choice but to rely on your instruments until you finally 'hit' it. I've tried using just right channels on both amps in stereo, matching them, and then matching left to right in each amp. That doesn't work because bias is thermally influenced and the unused left channel runs cool initially, influencing the overall temp of the amp differently than when it's being matched to it's respective right channel. These temperatures are critical and no two identical amps behave identically, just as no two identical channels of a stereo amp behave identically.
Csontos, I can't tell you how many people I've seen spend thousand on wire, carts etc to get rid of "harsh" high end on Symphonic music, when a 2 minute listen made it clear their amp was clipping.
IMHO , you can't have too much power on a speaker under 94db, if you never heard the clarity of more than enough you will take the average as adequate.