If you really want to know hire someone to do some tests. Issues with noise on AC aren't necessarily audible as far as pops, clicks, etc. but do reduce resolution and add a "haze".
If you want to try out one of my SurgeX conditioners I do demo them, you just pay shipping. They are used in Carnegie Hall, Yankee Stadium, used by NASA, Lockheed, etc, etc... unlike many conditioners/regenerators you can use them with large amplifiers and they also provide transparent surge protection that doesn't dump excess surge energy to ground.
I'd also suggest a Furutech GTX NCF receptacle to feed your choice of power distribution. I use the NCF receptacles and 20A IEC inlet in my SurgeX and it makes a big difference, so big it's usually shocking. Sorry...
If you want to try out one of my SurgeX conditioners I do demo them, you just pay shipping. They are used in Carnegie Hall, Yankee Stadium, used by NASA, Lockheed, etc, etc... unlike many conditioners/regenerators you can use them with large amplifiers and they also provide transparent surge protection that doesn't dump excess surge energy to ground.
I'd also suggest a Furutech GTX NCF receptacle to feed your choice of power distribution. I use the NCF receptacles and 20A IEC inlet in my SurgeX and it makes a big difference, so big it's usually shocking. Sorry...