JL Audio C3-525 Evolution C3 Series 5-1/2" 2-way Convertible Component Speakers System System Nominal Impedance: 4 Ohms Continuous Power Handling (RMS):75 W Woofer Mounting Depth : 2.27 in Tweeter Flush Mount Fixture Diameter: 2.12 in Crossover Dimensions(WxHxD): 3.36 in x 1.44 in x 4.72 in