The HT-X250 is a 5.1 home theatre system meaning there are 5 speakers: a center, two front & two rear; in addition to a subwoofer. More specifically, this system is a "Home Theatre in a Box" (HTIB) meaning that the receiver and speakers come in the box all pre-configured. All that's required is to plug in the power & speakers and you're ready to watch DVDs on the built-in player.