Opinions on Wyred 4 Sound ICE amps

Just bought the SX500 monoblocks to be paired with Pass Labs X1 preamp...not sure what to expect...I had Pass Labs X250 amp and X1 pre before and it was the best I have ever heard with my Martin Logan CLS's.

I tried several integrated amps such as the Musical Fidelity A5 and Classe' 201 and those int's didnt sound good at all.

If this combo doesnt sound good, going back to Pass amp again.

OK, please keep us posted.

I'm looking to possibly pair the W4S amps with a Rogue Perseus tube pre. I had a W4S STI-500 Integrated in the recent past and enjoyed the sound.
Any advantage using the monoblocks vs. the ST-500 stereo amp? Both look to use the same modules.

I didn't notice a significant difference in sound between the stereo amp and monos. Unless you want to place your amps by your speakers or space is tight, I'd go with the stereo amp. One less PC to upgrade too!