Logitech X-540 Multimedia Speaker System (5.1) ?

The X-540 speakers use FDD2 (Frequency Directed Dual Driver) technology to produce a uniform soundfield anywhere in the room. Immerse yourself in the game using the selectable matrix mode, which automatically creates 5.1 surround sound from common 2-channel stereo sources. The compact satellites are wall-mountable, and a special clip lets you place the center channel speaker on top of most flat-panel monitors to reduce desktop clutter. Use the wired control center to control volume and bass levels or connect headphones to enjoy your games and music privately. Mint condition.