Yba guy no changing

Hi group I have been a YBA solid state guy most of my audiophile life

From the yba integre and up the ladder to the signature series stereo separates. So not at top of the food chain yet that would be the signature mono blocks

I have reconsidered going with YBA  again because of the change in mfg at yba since 2008 where all mfg is now done at Shanling facility in China.

I have on my short list the following amplifier mfg's and would appreciate input

BRUMESTER

BRINKMANN

ACCUSTIC ARTS

PASS LABS

VINNIE ROSSI

I am leaning towards Burmester or Pass Labs.

I will be buying on the used/demo market

Ideally would prefer mono blocks  but dual mono stereo is okay too

I don't see a lot of brumester on the used market .there is quite a bit of pass labs so is that because brumester is that good ?