Unless there was something very wrong with your last power cord, or it was just a very poorly made one, you're not going to here any differences other than those that occur within your own mind via confirmation bias. This has been tested to death. BTW, no one will ever be able to rank a set of well made power cords by quality based upon what they cost. So spending stupid money on cords would be far better spent on room treatments or better gear IMO. I liken these kinds of gimmicks to the nutraceutical industries claims about their pills and potions-- they (almost) never EVER stand up to any kind of real scientific inquiry. The placebo effect however is very real and in almost all cases, the products never test better than the placebo control group. The claims made by so many ultra-high-end cable companies are pure sci-fi fantasy-- and they have the non-science to back them up! Just go for quality made cables that use quality materials, especially the connectors, and you'll be fine. Don't drive yourself mad buying into voodoo claims made by companies that make obscene profits by trying to differentiate their products with sci-fi lullabies.
New expensive power cord for amp and no change in sound?
I bought new an expensive(for me) well known and reviewed power cord for my very good amp and plugged it directly onto the wall socket. After a couple of weeks of daily use I hear no change in the sound quality from a $500 cord. I don’t want to name it for fear of getting my thread deleted. You would know it or at least be aware of the company. Did I throw away several thousand dollars? Before I get the snake oil answer I want to let you know that I bought an upgraded cord for my pre as suggested by the pre’s manufacturer and am pleased with the results.
I guess for full disclosure the amp’s manufacturer said don’t bother. But I had had good luck with the pre so I thought it would be a good idea.
Anybody else have this happen to them?