Definitive Technology SR9080 High-Performance Bipolar Surround Speaker - (single speaker) High-performance Bipolar surround speaker: 40 Hz - 30 kHz Powerful L/R Bipolar speaker dispersion pattern for wider, more immersive surround sound Easy to use and built for unobtrusive placement in any room.Dimensions:Height: 15.63",Width: 9",Depth: 6.06" Iconic and visually powerful design features. Totally inert, resonance-free cabinet structure (Includes only a single speaker)