OK ... since I found this forum a few months ago I have become obsessed with trying to get the best out of my equipment. I have re-wired both of my setups ... with a huge improvement to both. I am now looking at the wiring on my main HC setup - and wondering whether to re-loom it. I have a very nice glass shelved rack which hold all of my equipment wonderfully. However, it only has a single cable route (about 1.5 inces in diameter) to put all of the cables down. I have the speaker cables, interconnects and power leads all bundled together in a very nice cable run. However, I am now wondering whether I should seperate out the mains cables from the lower level signals. Do you think I will see much improvement? I could probably form 2 runs either side of the back of the rack and then keep the mains wires to one side. It will be a bit of a pain to do ... hence asking for advice first before I chop into the lovely neat cables. My mains cables are all 'out of the box' jobs. None of them are shielded. Or am I just getting too paranoid now. My audio sounds fabulous ... I am very pleased with that - it is PQ that concerns me most at the moment. Any thoughts?