Okay folks. I am kind of new here--oris that "hear"(?), but I am a quidk study. I suspect that anyone moving from Radshack, circuit city, good guys,etc. standard off the shelf cables to Acoustic Zen, Cardas, etc.-quality cables will hear a terrific differance. Perhaps this is enough. There are those of us who appreciateg great bass and especially vocals and there are some cables that might show some differance. I did change from Radshack digital RCA to Acoustic Zen and I am a believer! As far as speaker cables and comparisons, etc., the test is easy: Just wire one speaker with one cable and the other cable goes to the opposite speaker. you can even run the system on mono setting. If you like it, buy it.