Compound Loaded drivers optimize low frequency output for rich, cinema-like dialogue from a small enclosure. Two flared ports help reproduce bass with no audible distortion. Articulated Array speaker design provides a large, consistent sound field for a cinema-like experience. Dialogue remains locked on the screen, even if you're seated to the side. Slim profile design blends elegantly with most televisions and entertainment centers. The VCS-10 speaker is compatible with surround sound receivers rated from 10 to 100 watts/rated 4 to 8 ohms. Electronic protection circuitry prevents the speaker from being over-driven, offering increased reliability. Magnetic shielding prevents interference with your television.