I'd like make one general observation here. Over and over, I read where someone has made comparative tests between three or four interconnects, speakers cables, amps or whatever. If they hear no or minimal differences, they decide that this conclusion is valid when applied the vast range of products and product interactions that are possible. After I'd begun to hear a greater range of designs and products, the possibilities of audible differences became more evident. The other thing we can't discount is the way our perceptions can evolve. For instance, I have noticed that as my analog equipment becomes more resolved and nuanced, I can hear greater differences between SACD and 16bit recordings than were previously apparent to me. No doubt my 57 year old ears aren't as sharp as they were when I became interested in audio, but I also have no doubt my hearing has become finer tuned in some ways.