Al , they do make a difference. At least if you have dedicated lines. Like the poster above I put one on a standard line and didn't notice much, if any, change. I had not expected much change on my dedicated lines but it was in line with 883Dave's experience. If you have dedicated lines you should try them, if you don't you should get them if at all possible. Makes more difference than almost anything else. Stan
Thanks Stan. I respect your opinions, which are backed by a great deal of experience. I don't have dedicated lines per se, but there is essentially nothing else on the line feeding the system other than some incandescent lights.
I do plan to give audiophile-grade outlets a try eventually, after I finish baselining and optimizing my present setup which has undergone several component changes recently.
Regards,
-- Al