I got a bunch of Quail hospital grade power cords, from their "dentist" line (the only differences are cosmetic, the dentist cords are an unattractive putty color and lack transparent connectors.) The average price was about $7 each. I have been highly pleased with them. That said, I'll freely admit, I have done exactly zero A/B comparisons between them and the stock cords. In every instance, the Quails are between a power conditioner and the component, where they theoretically do the most good. The only caveat is that Quail has a minimum purchase of $50, which can translate to a lot of cords.