Tboooe,
I also have the Pass XA160's which I run on 15' JPS Labs In-Wall cables directly to dedicated 20-amp circuits from my AC panel terminated with Furutech IEC plugs. I tried this approach with my Pass Aleph 2 monoblocks and found it made a big difference. Lower noise floor. There are no additional connections (outlets and powercords) between each amp and breaker. I plan to talk to my electrician about a dedicated ground and will try Walker Extreme SST on connections at the breaker and back of amps. You can refer to my virtual system for more details. Very interesting topic.
I also have the Pass XA160's which I run on 15' JPS Labs In-Wall cables directly to dedicated 20-amp circuits from my AC panel terminated with Furutech IEC plugs. I tried this approach with my Pass Aleph 2 monoblocks and found it made a big difference. Lower noise floor. There are no additional connections (outlets and powercords) between each amp and breaker. I plan to talk to my electrician about a dedicated ground and will try Walker Extreme SST on connections at the breaker and back of amps. You can refer to my virtual system for more details. Very interesting topic.