Yes, especially the analogue stages inside a computer, but two rfi/emi cubes or the equivalent will kill it - the difference is clear (if you are not tone deaf - and if you are it is not a disadvantage...).Ahhhh just looked at the site for this....Gee it would be a whole lot cheaper to just use a real Earth ground rod, and some #10 copper wire.
True that the normal AC house ground is very noisy, but can you hear this noise in your stereo system?????
The really funny thing about this is that I was telling someone a few weeks ago that pro level sound boards like the Yamaha ones are now so cheap you can do perfect high quality audio for tv and radio for buttons compared to decades ago when they cost what a new car cost.
Then I read this and it puts retardedness into another level of retardedness.