Best Power cable around/prefer under $300....

Also, typically, high volume manufacturers, not just cable manufacturers, tend to have much more listings on used market than low volume manufacturers. Similarly, low volume manufacturers, not much available in used market. This is just a fact, reality.

@thyname

Not sure I understand this logic...so this is where all SR surplus used cables go first? Makes no sense. Where does used surplus come from and what’s the difference between garden variety "used" and "surplus used"? lol

Furthermore, about the "low volume manufacturers"....Audioquest has 2 listings, Cardas 1, and Shunyata has 3. Not sure SR (and its 11 listings) is bigger than any one of these companies and certainly not bigger than all 3 combined.

Edit: In fact I just looked up information on SR. They have approx 15 total employees and operate out of a 12,000 sf warehouse. That’s honestly a much smaller operation than I had even assumed. Comparatively AQ reports to have 135 employees. 

Cullen Cable sells direct with a trial period, so you can try their 6ft Crossover cable that sells for $199 in your system to see if it works.  Underwood HiFi has their Valiant Silver cable at around $180 that might also be worth exploring.  Audio Envy has been gaining quite a following here so they’re definitely worth a look too.  Best of luck. 

Check into VH Audio and build your own. Buy the best ends/plugs you can afford and spend the rest on the cable. Chris can help you. For an A21 make it a 10 gauge cable, not 12. Don’t make the cable too short either... hopefully 5ft works. I’ve gone to Home Depot and bought bulk cable and threw on Furutech plugs that sounded great. Don’t skimp on the plugs!

I’ve owned the Shunyata’s, Nordost and Kimbers and they were fine, but for the money, especially on a power amp I’d suggest Wywires Silver Juice II HC (High Current) on an amp. You should be able to find these used in your budget or if you reach out to Alex directly he probably has a former show demo he’ll help you with. He was offering a 40% discount so you can probably pick up a new PC as well. Alex is easy to work with and very honest. Good luck.

+1 Audio Envy PCs

I bought Pangea SE cables, most used and discounted, and saved hundreds. Knowing they're better than stock cables but not exorbitant just crossed the question off my list. Some people go back and forth and compare PC's but most of my comparisons have not revealed much of a difference once I moved past stock cords. Just my experience.