I just went through this with my speaker cables. I am thinking of switching to Synergistic Research cabling on the stereo part of my home theater. So, after changing to my rear S.R. cables to see how they sounded on front, I was amazed at the better soundstage and imaging. When I went to put back in my Wireworld Silver Eclipses, I noticed that they were pretty nasty. I cleaned them three months back with Caig Pro Gold and DeoxIt. Well, after cleaning them, the "magic" reappeared. I don't know if it is Atlanta's humidity or what, but I guess I am going to have to increase the interval that I clean my cables. Mmccoy, I would be willing to bet that after a good cleaning you will hear a nice improvement in everything--soundstage, imaging, detail, bass, highs, etc.
Best of luck.
Gregg
Best of luck.
Gregg