SSL F252 FORCE 200-watt 2 way auto 5.25" Coaxial Speaker (Discontinued by Manufacturer) 5.25" 2-Way Speaker, 200 Watts, Poly injection Conepeak power handling 200Wmagnet structure 20 Oz. efficiency 1W/1M 90dBimpedance 4 ohmfrequency response 100Hz-18kHz mounting depth: 1-3/4Mounting Hole: 4-1/2" Diameter Poly Injection Cone peak power handling 200W magnet structure 20 Oz. frequency response 100Hz-18kHz mounting depth 1-11/16"