CL-69S Slim - CDT Audio 6" x 9" 180W RMS Carbon Fiber Subwoofer Cone Surround Butyl Rubber | Free Air Use Mount in Rear Deck, Large Door or Panel Frequency Reesponse (In Tuned Enclosure): 48Hz - 3000Hz | Power Handling: 180W RMS Impedance: 4-Ohm | Sensitivity: 89.6dB | Magnet Weight: 30 oz Voice Coil: 2.0" | Dimensions: 6.625" x 9.25" (168.3 mm x 235 mm) Ellipse Exclusive of Mounting Tabs | 6" x 8.625" (152.4 mm x 219.99 mm) Ellipse Mounting Depth: 2.87" | Cone: Carbon Fiber Cone