Dirty AC comes primarily from the pole, not the house.
Dedicated lines help isolate the stereo from appliances, dimmers, and other noise-inducing household items.
Supposedly dedicated lines do not help with isolating the bi-directional digital noise of a cdp as it will work it's way back to the service panel and into other dedicated lines.
But there is still much noise coming from the pole that needs conditioning. So the answer is yes.
-IMO
Dedicated lines help isolate the stereo from appliances, dimmers, and other noise-inducing household items.
Supposedly dedicated lines do not help with isolating the bi-directional digital noise of a cdp as it will work it's way back to the service panel and into other dedicated lines.
But there is still much noise coming from the pole that needs conditioning. So the answer is yes.
-IMO