This system contains a powerful A/V receiver, two front tower speakers, four surround bookshelf speakers, a center speaker, and a 10" powered subwoofer that combine to create an encompassing sound field full of acoustic ambiance and smooth, thumping bass. The HT-S790 Home Theater System comes with built-in Dolby and DTS decoders, four digital audio inputs, a "remote interactive" remote control, an easy setup, Onkyo's proprietary CinemaFILTER and WRAT technology, and more to give you the versatility you need for all your home theater and audio needs. Also included are two speaker stands, HDMI, Optical audio cable, sub woofer cable, monster power bar and 12 gauge speaker wire. Great system, only used for a couple years. Got no room to set it up properly so seems like a waste keeping speakers boxed up.