10 Inch Subwoofer 1350 Watts A subwoofer that puts you in the driverrsquo;s seat JBL believes sound quality should never be compromised And Stadium subwoofers make sure you donrsquo;t have to compromise fl exibility either Thatrsquo;s because these high-performance subwoofers feature SSItrade; Selectable Smart Impedance a patented impedance switching technology that lets you select the optimum impedance ndash; 2 or 4 ohms ndash; for your system We have also engineered aero-cooling in the voice coil to boost power handling as well as reliability Plus our oversized voice coil handles more power than common two-inch voice coils More power more reliability more fl exibility ndash; and no compromising When yoursquo;re ready to step up Stadium is your subwoofer Description 10 250mm car audio subwoofer Power Handling 450W RMS 1350W peak Sensitivity 2 83V 91dB Frequency Response 30Hz ndash; 175Hz Voice Coil Diameter 3 75mm Impedance 2 or 4 ohms Cutout Diameter 9-7 16 239mm Mounting Depth 6-15 16 175mm