Possibly:
1) The different cables you purchased generally "sound" the same as the ones you had.
2) The different cables you purchased are in a part of your system that is NOT where the major restriction in your system lies. (so if that "other" thing got fixed, you might be able to hear the difference.)
3) Your hearing has gone, but you never noticed it.
4) You are too uptight about hearing them, so, of course, you cannot.
My suggestion, chill out. put your old cables back in. See if they sound as good.
1) The different cables you purchased generally "sound" the same as the ones you had.
2) The different cables you purchased are in a part of your system that is NOT where the major restriction in your system lies. (so if that "other" thing got fixed, you might be able to hear the difference.)
3) Your hearing has gone, but you never noticed it.
4) You are too uptight about hearing them, so, of course, you cannot.
My suggestion, chill out. put your old cables back in. See if they sound as good.

