Hello, I have a Naim hifi system and I'm thinking what is the point of dedicated mains. The line has been through thousands of homes before it gets to my house and a metER test would I'm sure confirm it is polluted. I can see the only point where a dedicated line would be perhaps beneficial to hifi is if you had the line directly from the power plant, or get a ps audio power regenerator plant Whats your views
Ye gods but this subject has been done to death in so many controversial threads in the past (as I'm sure you're aware, Mr Pig
). I didn't realise that the juice entering my house has been sampled by all and sundry in my street! Actually, I'm sure it's not, as I believe each h'hold is connected to a main conduit outside the premises.
I also had Naim for a generation or more, from 42/110 to 552/135s and put in several dedicated radial systems in previous houses. The one I have now benefits from the latest (safety) kit of about 13 years ago. 8 radials with RCBOs into separate c.u. and no sockets. About as dedicated as you can get barring a separate phase. Total overkill a la Naim excessive behaviour, of course, but absolutely no question of beneficial outcomes in dynamics, noise floor etc. It's also rather convenient (individual switching at the c.u.) and safe for (what was then) a 24/7 power-up.
Almost superfluous now with virtually all valved kit, but it doesn't eat anything and took took so much energy to install, with T&E over 12 metres up the wall, across the office, down the hall and into the garage. I was a lot younger then !!!!
Summary: any form of separation from the domestic rings is probably worthwhile, and even now, the cost of a few radials etc. would be a cost-effective upgrade, assuming a feasible cable route. Absolutely no downsides either.
N.B. Of course, there are a number of ways to bring a supply into the audio kit. C.U. adj. to the hifi and others means (armoured cable if outside route) etc.