Help me decide, please

Your membership shows you as living in Ecuador. Is your voltage 120v or 220v?

I would probably choose the Claytons ... my feeling is they are the most refined of the amps you have listed. Not familiar with the Tylers though and synergy with speakers is the key so it is possible one of the other amps may work even better with those particular speakers

SS amplification is a very matured industry..I see no reason the need to empty ones pocket when there are amps fofar less money and sound excellent..we need to all question the pricing and ask why so expensive? When most if not all mature industries usually come down in price,,the pc industry comes to my mind. I hope you find the amp of your dreams. But really, do we need to spend so much for quality sound?

Claytons would be my first choice then the BAT with all the upgrades

With 90db efficiency, I would check out Tube Research Labs (TRL) Samsons Monos. There are several very accurate Agon reviews so check them out.

Contact Paul @ TRL if interested. He can build with all the options you need.