I don't want to hear about power conditioners, remotes, cables or that type stuff. I am interested in hearing about isolation devices, Cd treatment stuff, cones, EMI/RFI frequency absorbers, etc. Back in Oct 99 Home Theater magazine did a shoot-off about these type of Voodoo products. Some they found effective, some junk. Personally, I have had the same type of experience. But I would like to hear opinions of those who have tried various stuff to expand my future listening adventures. So what have you all tried or bought that made a difference?