What's the better, High Powered SS Amp?

Jeff Rowland 201 or 501 mono blocks fit your criteria. Due to there small size they could easily be positioned behind your speakers if you prefer long ICs and short speaker cables. If not they look very attractive and run extremely effeciently using ICE power supply technology.

Regards
Glenalan

Levinson, McIntosh, Moon?, Bel Canto's monoblocked, Classe mono's, Theta?, Bryston 14sst, Jeff Rowland?, Edge?, Halcro's !!

Krell and Pass can be revealing and/or "cold". Use caution.
Halcro's could be the ticket, but $$ and pretty neutral.

As always you can sway the sound of your amps with the right cables (copper for smoothness, silver for clarity or coldness,) and the PREamp. Try a tubed preamp with a ss amp. Might be great.

Forgot about BAT vk's and M-F kw series. worth a try.

I wouldn't classify a Bryston 4B SST as a "high powered" amp.
It had trouble pushing a 4 ohm speaker .

Now the 14B SST is a different story.

Try a c-j Premier 350. It has a high input impedance (no XLR input) which will be compatable with tube pre-amps.

Good Luck!