I was using Monster Power Line 3 cables. But I noticed a big difference when I auditioned Vampire Wire continuous cast copper. I ran them between to KEF Reference 104.2 speakers and an Onkyo Integra M 504 amp.
I guess the idea is they can stretch the copper crystals to be up to 20+ feet long so that on a short run, you are never going through more than two copper crystals at a time.
When friends came over I would do a blind A/B/A/B type demonstration and each person could tell a difference and preferred the Vampire Wire to the Monster Power Line 3 cables.
Even people who did not care much about Hi-Fi preferred the sound with the Vampire Wire cables.
I don't know how these would compare to the cables you mentioned but, for me they definitely warmed up the sound. I had tighter bass and smoother midrange and treble.
I guess the idea is they can stretch the copper crystals to be up to 20+ feet long so that on a short run, you are never going through more than two copper crystals at a time.
When friends came over I would do a blind A/B/A/B type demonstration and each person could tell a difference and preferred the Vampire Wire to the Monster Power Line 3 cables.
Even people who did not care much about Hi-Fi preferred the sound with the Vampire Wire cables.
I don't know how these would compare to the cables you mentioned but, for me they definitely warmed up the sound. I had tighter bass and smoother midrange and treble.