Confession of a poor power cord pairing for a Pass Labs XA-25


I recently purchased a Pass XA-25 to replace my Nuforce STA-200. I had replaced the power cord on my Nuforce with an entry level Silnote power cord which made a tremendous difference in sound for the Nuforce. However, when I received my XA-25, I apparently was in an extreme hurry and did not install the cord that Pass Labs included.
This evening as I was sorting through a big box of interconnects and power cords, I discovered a power cord that still had its factory twisty tie intact. After a few minutes of deliberation, I realized that this was the power cord that was included with the XA-25. I hooked it up and wow!.. Detail and Bass that I didn't know this amp was capable of.
Moral of the story.... Just because it's factory power cord.. doesn't mean it can't be good.

128x128coachpoconnor
I experienced this exact same result with my power cords in the amp. Have some custom furutech based cords that greatly improved my coincident Frankenstein mono blocks. The same cords made the xa25 sound worse than stock.
As there is no real question here, may I ask the XA-25 owners:
-Did you buy thru RenoHiFi?
-Any deal to be had? (doubting that)
-How is the SQ? (As compared to whatever you replaced)

I am considering  the same amp.
I have 94 Eff. rated speakers so the 30 wpc should be okay.

My debate is whether to buy a used set of 60.8 monoblocks
or simplify with the Int. option. Cost close to the same either way.

Dave10- What did NP say? Confused by your comment. Thanks.
Gadios-
1. Yes I did buy through Reno Hifi.
2. Deal yes..  bought a demo for $3500.00. Since they were $4900.00 new. (At least I thought it was a good deal). I wouldn’t have known the difference from the packaging. I was also considering a First Watt J-2, for $2500.00. 
3. It replaced a Nuforce STA-200. The Pass XA-25 is much more dynamic, transparent. The XA-25 has found a home with me for the foreseeable future.
I do appreciate the interest in integrateds. The only issue with this audio journey for me, is the clutter. Integrateds help solve that.
Confused by your comment. Thanks.

@gadios Pass’ guidance (at the time) was to run my 30.8 direct into a wall outlet and to use the stock power cord. Performance is good doing so. They were not ’crazy’ re. power supplies/power conditioners and were hesitant (grudgingly, slowly moving forward in this area) about aftermarket power cables.

I eventually introduced SR’s PowerCell 12 SE into my system and using it with the 30.8 resulted in significant improvements in system sound quality and elevated overall performance. Same with an aftermarket power cable, in this case a Triode Wire Labs Obsession.

Had I addressed these areas first, I would have been much less likely to audition other amplifiers. Since other amps outperformed (to my needs/preferences) the 30.8 in my then system, the 30.8 is no longer my primary amplifier. For reference it was paired with the XP20.

To summarize, the Pass stock power cable can be surpassed. If you have a Pass amp you owe it to yourself to try different power cables with it and come to your own conclusions and select the one (inclusive of the stock cord) that works best for you.
compared to many others, Pass includes a good quality stock cord...but it can be bettered and Pass uses better cords in shows...which cord you prefer is based on many factors, but well worth searching out...