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


I have bought six or seven different power cords, none over $500 and have noticed little or no change in the sound of my system. All the cables are 12 gauge or bigger.  Without talking about cables made with unobtainium, where did you start hear a difference.
 

Thanks.

128x128curiousjim

In my system, QSA Lanedri, and I've had the Argento Flowmaster Reference in my system. 

@jacobsdad2000 zzzzzzz ? Yeah, that would be a grounding issue. As in your lack of grounding in basic physics and electronics.

@curiousjim Master Couplers are all over used sites, I’ve bought 5 or 6 of them from ebay or audiomart etc. SR doesn't make the anymore.

"Better yet, separating digital front end with a separate power bar from the one used for the preamp and power amp." @riccitone 
Does everyone do this? Sounds reasonable to me . . .