Help me decide, please

I'd favor BAT on your list plus Bryston 7b-sst, Classe CAM300.

Well I've owned a BAT VK-600SE and a pair of Clayton Audio M100 monoblock amps. If I were choosing, I'd go with the M-300's. Wilson Shen has that *magic* touch, similar to Stan Klyne. A way to make solid state sound musical, like tubes. The only major designer I have heard hit this sweet spot was Jeff Rowland back in the mid to late 90's with his 2/6/8/9 series of amp. As always, YMMV.

This is the 4th thread you've started regarding buying a new amp in less than 3 weeks. No one is going to tell you what to buy, that is a decision that you will have to make yourself. It's your money, you have to make the final decision.

Hi Leog2010. I have heard excellent things about Clayton Audio...and when i look back over 20 years, my favorite SS amps are: Forte 4, Krell FPB600, Boulder 2060, Gryphon Antileon and Gryphon Colosseum. All of them are Class A amps. This is nothing more than a personal observation about what i've liked over the years. Claytons fit this bill, but i've not heard them.

If you ever get a chance to hear any of the above, i think you'll find a purity of sound combined with an endless reserve of power (ok...the Forte 4 will not be endless, but for 50 watts...its incredibly powerful sounding).

If you are comfortable on the reliability of Clayton (i have never investigated this...just saying, since they're not Krell or Boulder or Gryphon who are super-commercially well known.)...then i would go for it.