What was the first power cable that you noticed a difference in the sound?

Reading with interest as I have yet to experience an improvement with any power cable, and I am in the under $500 market as well. I did however get a significant improvement by running a dedicated line, very noticeable.

However, I have had some cords negatively affect the sound, those were Pangea's on some of my source components. Took some of the life out of the sound.

@auroravengeance  +1

I own my house. First thing I did was have an electrician run a dedicated line, then various PLCs; To many to recall, but the last was a PS Audio Premier Power Plant (didn't do much for me) and various 'better' PCs including, Wire World (< $300- $500), the best were from Tekline, a boutique company (MSRP-$350-$800). The next biggest power upgrade was/is Core Power1800 MkII that has been anchoring my system for 3+ years. Check our the Verify blog on Audiogon for some interesting twists on fuses

I got this to replace my integrated stock power cord and there was an immediate notice of the difference in sound. I am not going to say if it is better or worse as this is a personal preference but there is a difference.

https://www.aliexpress.us/item/3256804698120208.html

Triode wire labs Obsession .