Just wanted to chime in on trying my very old Mapleshade powerstrip. My amp is already straight into the wall so all I had to do was A/B my CDP into the Brick Wall surge protector and then into the Mapleshade powerstrip. After a dozen times it was clear to these ears that the Mapleshade PS was like going straight into the wall. Using the Brick Wall surge protector added more than a hint of smoke or fuzz, enough to obscure some detail which added a false sense of body or heft. That, and with the clearing up of details a bit there is a touch more microdynamics present with more air and extension. I guess that's to be expected but it's nice to hear it now.
Just goes to show that even a surge protector can dirty up the sound somewhat at the cost of protection, no matter what they claim. I guess I'm better off getting a longer power cord but for now I'm a bit impressed at what that strange looking power strip can do for keeping things cleaner sounding.
All the best,
Nonoise