SoCal, that is how I would plan on setting them up.
I am mostly sure that using both L/R RCA inputs on the servo amp will give you a db boost in the single digits, but not sure how much. And for that matter, that may be completely made up from all the stereo research/reading I've been doing lately. I believe most people use one input. I don't know which, left or right, would be suggested if you are coming in with one cable though.
Ben