Volex, Element Cable, Signal Cable, and Blue Jean Cable are the "bang for the buck" audio cabling companies. IMO until your system exceeds $10k these brands represent the end of the pool you (and I) belong in.
And before I dropped hundreds on power cords I'd make sure that you're using a good wall receptacle. At least a 20 amp nickel plated hospital grade (for tighter fit and therefore better connection). Hubbell and Acme are respected audio brands. Even cryogenically treated you can pick one up for under $40.
I wonder if anyone can explain why the gauge of wire used in the power cord should be heavier than the house wiring that is bringing the electricity to the wall receptacle. Residential building codes require 14 gauge for 15 amp circuits (typical) or 12 gauge for 20 amp circuits. Codes also require copper wire, again why should the last 5 feet of wire be of any different material? And what gauge/material is the wiring inside the amp?
And unless wall receptacle is on a dedicated line, the amp will be sharing the circuit with other loads, so the need for heavier gauge is reduced.
For the listening room in the house we built last year I had three 12 gauge/20 amp dedicated circuits run, each with a single 20 amp cryogenically treated hospital grade receptacle ($33 each). In my simple system the source plugs into one and each of the monoblock power amps plug into the others. BTW these three circuits are wired together to their own grounding rod. As pricing for the electrical work was a flat fee I only paid $100 extra for the receptacles.
Someday I may replace the power cords on my monoblocks with Element Cable Red Storms ($69 each) as the buzz here at AC suggest that they're a very good match (and I already use their interconnects and speaker cables). But being "old school" I wouldn't spend more.
