Make sure you put all the dedicated Home Theater circuits on the same phase...
This is very important, so as to not introduce the erroneous humming problems many encounter with adding circuits.
My HT is in my living room, and there was already a couple of outlets close by.
As I had all my equipment on that circuit, I really didn't encounter any problems up until I got my SVS-Plus/2, fired up at reference levels, and above.
Funny how I started to notice that the lights started dimming/fluctuating.
There are usually more things on these single circuits in a room, and unless you have the electrical plan You don't know...
I ended up adding 2 dedicated 20amp 120v circuits, 1 for the Sub, and 1 for the Rotel AMP, and 1 for Plasma, receiver, xbox, & Sat box on the original. I had to move a couple of breakers around in the breaker box in order to keep everything on the same phase, but I have no humming or other issues....
Phases in home load centers alternate vertically; the top two breakers (both left and right) will be phase A, the next two (both left and right) will be phase B, etc. For each breaker pair, there is a single 'stab' that the breakers' connecting fingers attach to. If you look at a panel that is partially empty, you can see the stab layouts and how they alternate phases vertically.
[The reason this is done is so that a single 'dual' breaker can provide a 240V feed - like the one for your dryer, stove, or HVAC unit. If you check the voltage between two breakers, one immediately above the other, you will find that they read 240 V. If they were on the same phase, they would read 0.]
So the phasing layout looks like:
1 A 2
3 B 4
5 A 6
7 B 8
9 A 10
........
To have two feeds on the same phase, you need to either skip a breaker on the same side (i.e., use breaker positions 3 & 7), or use a side-by-side pair (i.e., breakers 3 & 4).
