BAT VK 55 SE

That would be a tough call for me in hindsight, but if you have a chance to listen to both amps in the same sitting, that might be worth your while. Enjoy the music

I personally have not lived with the BAT amps in my home or system but do have a friend that runs them in a near identical system as mine powering a pair of Wilson Sophias and they are marvelous amps, he actually had them wired to mono blocks doubling the power, which I felt was not needed. He has had them for probably 8 years with no issues at all. BTW, my amps in my system were MB125s with about the same power rating as his 55s after wired to mono.