What is the best solid state amplifier you have ever heard?

N.E.W. DCA-33 battery powered, 33 watts per.Real nice sounding solid state amp!I keep one around as backup for my tube amps, sounds great with my Sonist Concerto 4's!

TISH

Spectral Audio amplifier :)
At very first listen it revealed the coloured sound from other top contenders of 200 watts and up. I was amazed at the completely different level of overall refinement and level power output. 

Thank your for all the ones responding. For the ones criticizing the thread, if you don't like the thread, ignore and move on to the next. Your time will be best spent looking at more sensible and valuable threads than this one.

I'm learning more and more about amps. 

Thank you. 

@erik_squires yes Arcam stuff has been good for as long as I can remember. Always marginalising more towards warmth than most others.

With first rate reliability and support too.

In a retail setting; BEL (Brown Electronics Labs) MK-V's.