Power Cord Suggestions REF 5se


Just got a recently purchased ARC REF5se back from the shop and really got to hear it for the first time. The output caps were replaced, due to a long story for another time. Anyway, it is fixed and working correctly. At the end of the first night I came to notice that the high end was a little....fatiguing after several hours. I suspect that some is due to the need of the caps to burn-in, could some perhaps be due to the factory pc?

I am currently thinking about a replacement pc and would like to get some suggestions from guys familiar with the 5se. I am running Pass 260.8 with it and had been using a LS27 before getting the 5se and the top end was not nearly as fatiguing.

As it is a 20a plug and I do not have any on hand to swap and try I am hoping someone has already gone through the task. As I am convinced that pc make a difference, I am looking for a couple of names that I should investigate and for a pc I think used is fine, as it will also limit the downside should it not mate well in my system.

I have spent hours looking and researching a half dozen so far, with literally hundreds more to go. I am hoping for a short list of cable manufacturers/models to keep an eye out for.

BTW-I would like to stay away for a discussion about the validity of cables, I am a believer so if you are not, that's fine. Let's take it from there.

SteveA
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I would recommend you get in touch with Chris at Sain Line systems if you have not made your choice yet.  His Pure Current (called Pure Audio above) power cables is what is used at ARC to voice their systems.  They use his power cables because historically they have considered his power cables the very best, regardless of cost.  I have been to the ARC lab recently (10 min from my office) and have seen the his power cables in their lab myself.   I also use Sain Line power cables in my Aesthetix, Rogue, Revel based system. I highly recommend them.
Have email Chris, as other things have kept me from fully breaking in the pre-amp so this came just in time.
I've been using Sain Line cords on my Ref 5se and Ref 2se for quite some time and they are definitely a sonic match with ARC gear.They just plain get out of the way and allow the equipment to reveal what it was designed to do.
HAve been checking out the Sain products, do they sell direct or through dealers? Difficult to get pricing on any options they have...like line length...

Emailed and so far have not heard back...