Hey all. Just purchased a house a week ago and there are in ceiling speakers in a few rooms. i was able to locate the wires in my living room and was able to separate them and see what goes to what. My living room where the speakers come in off of has a set of wires 2 left and 2 right so that's the easy to work with. The other 3 locations, have 2 speakers each and volume controls (per 2) and it seems all 6 speakers are ran and use a single 4 conductor speaker wire that comes out of the wall. I have them plugged into a Sony STR-DG500 which is 100 watt 8ohm receiver. When i have them plugged in, my living room works great since they are ran independently but my other speakers don't work so well. My hallway speakers sound great, my den is pretty low, and then the outside is barely audible (with the volume knob turned all way up too).\n\nMy question is what do i need to buy in order to power these correctly?