I always suspect these are the sort of item designed for a particular type of owner, you know they type, the one who claims they can hear a difference between two sets of £1,000 interconnects.
If your equipment is designed to work on standard mains then unless there is something wrong with your mains supply these things are pointless.
But no one especially those Audiophools that spend a fortune on them will admit to that will they
And still no one after all these years sees why Audiophiles are the but of so many jokes. Even when the tweeter video posted the other day and no one guessed it was poking fun at them even when it showed the group in the room moving an inch left or right forward or backwards trying to find the sweet spot and still no one could see the film maker was taking the pee.
Current setup Thorens TD-160 Mk1 with Denon DL-110 MC Cartridge, Pioneer PD-8700 CD Player, Yamaha AX-592 Amp, Yamaha CDX-810 CD Player, Yamaha KX-480 Cassette Deck, Yamaha TX-492RDS Tuner, Monitor Audio Bronze 5 speakers, Van-Damme Cables throughout.