Lugnut made some very relevant comments, and I'll make only one addition: I think that one's ability to judge the improvements made by tweaks decreases as one gets older, due to diminishing ability to hear high frequencies. I have noticed over the past 10 years (I'm 62 now) that some changes to my system, including tweaks, are barely noticeable, and may just be different rather than better.
That said, there are two tweaks which I have found to have made no detectable change/improvement in my system (and thus may be equipment dependent):
1. replacement Hubbell-grade electric outlets;
2. after-market power cords (AudioQuest) for my Bryston electronics.
Other forum members may have experienced different results than I, but your mileage may vary and I'm sticking to my version..
This could be an intriguing thread...
Scott C-
That said, there are two tweaks which I have found to have made no detectable change/improvement in my system (and thus may be equipment dependent):
1. replacement Hubbell-grade electric outlets;
2. after-market power cords (AudioQuest) for my Bryston electronics.
Other forum members may have experienced different results than I, but your mileage may vary and I'm sticking to my version..
This could be an intriguing thread...
Scott C-