I've got a media room with surround sound and then I've got 6 pairs of speakers in other rooms around my house. I've got impedance matching volume controls and all the wires run. I recently bought a receiver that happens to have a front A output and a front B output. There are also outputs for center, surround and sub. My question is a simple one, I just want to get some experts agreeing with me! Does the fact that this receiver has 2 "front" outputs mean that I can hook up the 1 pair of fronts from my media room to the A outputs while hooking the rest of my house speakers into B and that way I wouldn't have to buy a speaker selector? I know I don't have to have a speaker selector since I have impedance matchin controls, but I'd like to be able to turn off my media room fronts at times and just have the ambiance around my house. Is that what these 2 outputs are for?