years ago when I first got into this hobby, I went cable crazy. bought and tested bunch of different cables used through audiogon, and I can't remember the name of that used cable site (?) they are super helpful there.
I could tell a difference in interconnects for sure, and speaker cables to my then big Maggie 3.6's. I could hear nothing at all in the way of difference from power cables to any of the equipment.
Nothing over the basic upgrade sounded any "better" to me in the way of I/C's or Speaker cables. For a long time I used Kimber Hero's and Zu Libec speaker cables. I only recently switched to all AntiCables. I've always used Signal Cable power cords.
So, I'm not surprised you hear no differece.
I could tell a difference in interconnects for sure, and speaker cables to my then big Maggie 3.6's. I could hear nothing at all in the way of difference from power cables to any of the equipment.
Nothing over the basic upgrade sounded any "better" to me in the way of I/C's or Speaker cables. For a long time I used Kimber Hero's and Zu Libec speaker cables. I only recently switched to all AntiCables. I've always used Signal Cable power cords.
So, I'm not surprised you hear no differece.