the reason I asked this question is I have a new A/V receiver, a pair of larger floor speakers, a powered sub and a pair of small 3-way "rear" speakers. When hooked up there is no sound coming from the rear speakers. I have the receiver set on 4.1 and the "surround sound rear" option turned on but no sound. I just thought maybe I needed a special type of speakers. The surround sound technology is still kind of new to me. Thanx!!