thanks but do you therefore think that a cd player, plugged in next to an integrated amplifier, can cause interference with the amplifier ?
(i'm guessing your answer is no but i would appreciate a more "technical" explanation as to why ?).
I think the way to look at it isn't to get bogged down in the technicality as there is a multitude of reasons as to why one person might be hearing something and another wont, and therfore whether any valid technical reason can be applied or not from it. I think this way of rationalising it is true with power bars. So if conventional wisdom is that common mode power supply noise from a CD player can find its way back into another component - everyone believes power supplies do this, if you cant hear it on changing a strip with conditioning then this is all academic. If a power bar saps dynamics for you but not another person and so on. It's better to be an experienced based audiophile on a number of products, not extrapolating on the technicality as to why you should hear it better (or not). That's always been my approach as the number of variables is just too hard to predict and one should always estimate products based on price v feature and SQ value. That's why Im more interested in what the products do then how you get there and if those reasons are valid ones.