Yamaha YHT-S401BL Front Surround Home Theater System (Discontinued by Manufacturer) Front Surround System with center speaker provides clear dialogue and an expansive sound field for greater TV enjoyment. Oval center speaker ensures natural sound reproduction with low listening fatigue Powerful subwoofer outputs robust bass with a sharp kick AIR SURROUND XTREME provides powerful 7.1-channel surround sound with six surround modes to match the listening genre and content USB digital connection for iPod/iPhone