Klipsch ProMedia GMX A-2.1 Multimedia Speaker System - Refurb (Silver/Black) (Discontinued by Manufacturer) Two 2-way satellite speakers, control pod, and a powered, vented subwoofer 6.5-inch subwoofer; satellites: 0.75-inch tweeter, 3-inch midbass driver Amplifier provides 14 watts/channel to satellites; 50 watts to subwoofer Stereo RCA, 1/8-inch minijack inputs; headphone jack; Klipsch SWS Link socket Satellites measure about 5.5 x 10 x 5 inches (W x H x D), subwoofer about 13 x 12 x 10