IMP: 4_SURROUND: RUBBERBLACK POLYESTER DIAPHRAGM: BLACK SILK6" X 9"3-WAYPOWER HANDLING: 160W 200WNOMINAL RATING: 80W 100WFREQ RESP: 45 HZ 20 KHZEFFICIENCY: 91 DBLOWEST RESONANT FREQUENCY: 90 HZCROSSOVER FREQUENCY: 4000 HZMOUNTING DEPTH: 64MMUPC : 611892990616Shipping Dimensions : 2.75in X 3.75in X 5.50inEstimated Shipping Weight : 9.0