Over the past 90 days, I have gone from trying one of Stu's reference power cords to replacing all the cables in my system. The results have been nothing short of amazing. The 30 day return policy that Stu offers makes this a no brainer. I am just about to order some of his interconnects to try. If they are any where near as good as his power cords, then this would represent one of the real finds in audio.