Pass amps + Power Cords ??

I have Tara Labs Cobalt PC on my XP-20 Preamp, it does make obvious difference even X-20 is two-box design, in every aspect of sonic performance, compares to the orginal Shynyata Anaconda CX.

I also try this on my X-350.5, only subtle change compare to Preamp.

I still keep Shunyata Anaconda CX on my X-350.5

I learned something about my Pass Labs X350. I have a dedicated outlet for my stereo. It has it's own 20 amp breaker and 12ga wiring to the hubble hospital grade outlet. I use the factory power cord with my amp, but I have a MIT power cable on my CD player and a Cardas hardwired power cord on my preamp. I haven't tried different power cords on my amp based on comments from various people about Pass Labs amps being pretty much impervious to cords. Anyway, back to what I learned. I have my front end powered through a power conditioner but I had my amp plugged into the outlet direct w/o conditioning. After listening to some Patricia Barber CDs that I recently bought, I was getting a bit irritated with sibilance. Some of her CDs exhibit some strong sibilance and that got me tuned into it. So I tried plugging my amp into the power conditioner and found not just that the sibilance diminished but also the highs smoothed out noticeably. I am much happier with this arrangement and I really haven't detected any down side to having the amp plugged into the PC. So, power cords may not affect Pass Labs amps much, but Power Conditioning seems to matter.

Tony,
Did you notice any change in dynamics with the amp running from the power conditioner?

I listened for that because that was my main concern, but I perceived no real change in dynamics. If there was a change, it was very small. But the advantages were unmistakable. Having the dedicated circuit is a big advantage. This amp draws almost 5 Amps at idle. I see only a 0.5VAC drop in the line when the amp is on vs. off.