12 Inch Subwoofer 1500 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 12 300mm car audio subwoofer Power Handling 500W RMS 1500W peak Sensitivity 2 83V 92dB Frequency Response 25Hz ndash; 175Hz Voice Coil Diameter 3 75mm Impedance 2 or 4 ohms Cutout Diameter 11-1 8 282mm Mounting Depth 7 177mm