Energy RC-Micro 5.1 Surround Speaker System (Black) Micro 5.1 Home Theater surround speaker package of critical acclaim delivers high performance sound in elegant and unobtrusive package. Features 2.5-Inch Aluminum woofer and 1/2-Inch Hyperbolic Aluminum tweeter for accurate sound and expansive soundstage Subwoofer, center channel and four front & rear speakers all finished in beautiful High Gloss piano black lacquer. Mini subwoofer in High Gloss Black features 8-Inch woofer with Patented Ribbed Elliptical suspension and 240W amplifier for deep Several mounting options with Integrated key-hole mount or 1/4-Inch-20 insert, floor stands optional.