Well, they could be dedicated and the noise in the line is merely backing all the way back to the panel and into the main power feed, and then going back down into the dedicated circuits. Did they put any sort of noise filter on the dedicated lines at the breaker? If not, this is what will happen.
(FYI: This is one reason why your stereo typically will sound better late at night, as all of your neighbors quit using their noisy appliances late at night, and the main power feed is quieter.)
But then again, imagine how bad it would be without dedicated lines at all.
Also, what gauge wire did they use for the dedicated circuits?
(FYI: This is one reason why your stereo typically will sound better late at night, as all of your neighbors quit using their noisy appliances late at night, and the main power feed is quieter.)
But then again, imagine how bad it would be without dedicated lines at all.
Also, what gauge wire did they use for the dedicated circuits?