New level of ridiculousness

There is no question that the Acrylic and Marble PowerSlaves greatly improve the sound. This would suggest that the outlets and the wiring in other powerstrips are inadequate. It would also suggest that RFI and EMI might not be as much of a factor as contacts. I once went to the trouble of hot wiring my preamp to the wall plug. It was a pain in the ass, but it was glorious. At another time I hot-wired my source to my preamp to my amps to my speakers. That was glorious also.

Presently, I am using the new TriPoint Troy Signature grounding unit. It is expensive and wondrous! I have tried other methods of grounding each component to every other one as well as lifting the grounds of all and also grounding only the preamp. This made a positive improvement but nothing of the magnitude of the TriPoint Signature.

If you want the highest level of realism, isolation, grounding, contacts, and electromagnetic interference need to be considered. If you can forego realism of great performances, you need not bother.

Mapman, it does have a major impact on tv, but I don't know whether your supposition about vision being more sensitive than hearing is true.

Noromance, once I hardwired my entire system for ac. It was much better but scary as I had no fuses, etc. I, of course, doubt your statement that, of course, it would be better. I would suspect it would be but am not about to bother to try it. With fewer contacts everything should be better. So hard wire everything together and hope for the best.