I need to run 4 sets of NHT IW3s in four other rooms. They are wired and switched. I have a Pioneer Elite 21-VSX I use in 5.1 in my main room. Should I preamp the Zone 2 (4 rooms) or will the Pioneer push them fine? The furthest has about 70 ft of wire. If I need a preamp, suggestions? Help would be greatly appreciated.
*edit* I have the 4 rooms bundled and pig tailed to a two speak cover plate. All wires lead to main room.