We're getting close to putting up the walls in my new home theater. I have never owned a home theater in the forty plus years I've been in audio. I'm kind of excited.
Without even a moment's hesitation, the first thing my designer, Robert Dreher, did was add dedicated lines to the theater. It's something you too can do and for not much money. It makes a lot of improvement.
I am running three dedicated lines to this room, only two will be used. The other one an insurance policy because it's easy to add it at this point, and cheap.
The main two lines, both 10 gauge wire, will each feed a P10 Power Plant, one dedicated to the projector and accessories, the other to the multi-channel power amplifier and subwoofer system.
But suppose for a moment you have a hi-fi system you wish to help sound better, rather than this fancy home theater of mine. Adding a dedicated line can be one of the best and lowest cost moves you can make. Music Room One has multiple dedicated lines. It's one of the reasons the system sounds so good.
A dedicated line is simply a solitary run of AC back to the mains box (where all the circuit breakers are located) in your home. It enjoys its own circuit breaker. You can probably hire an electrician to install one for you for a few hundred dollars or, if you're handy, do it yourself.
I recommend 10 gauge Romex, but 12 gauge will do if 10's a challenge. I recommend the dedicated lines even if you have a Power Plant or other power conditioner isolating the system and improving its power.
Dedicated lines are, perhaps, one of the best, lowest cost improvements you can make to your setup.