Klipsch Architectural RW-5802 300 W RMS Woofer - White Dual 8 (30.5cm) front-firing, cerametallic cone, cast aluminum frame driver woofer Sealed integrated enclosure for maximum installation flexibility 45-140Hz Frequency Response 90dB Sensitivity at 1-Watt 1m Dimensions - Height 20.8 x Width 11.8 x Depth 3.7