- 12 Car Audio Subwoofer - Power Handling: Peak: 1500 watts, RMS: 750 watts - Impedance: 1 Ohm / 2 Ohm - Sensitivity: 84.5 dB (1 Ohm) / 85.3 dB (2 Ohm) - Triple Voice Coil - Double Stitched Rubber Surround - Vented Cast Aluminum Basket - Reinforced Spider - Light Weight Polypropylene Dustcap - Mounting Depth: 7.48 - 1-Year Dynamic Autosound Warranty Big bass, Memphis style From Booker T to Big Star, the Memphis Sound has always relied on a foundation of deep, rich bass to tie the music together. Now, Memphis Audio brings that bass tradition to your ride with their M7 Series subwoofers. Made to get down Memphis Audio created the M7 Series M71212 12 subwoofer for high-performance bass reproduction. The polypropylene cone has the stiffness to maintain high levels of accuracy, while its double-stitched rubber surround helps to maximize and control excursion. The vented cast-aluminum basket keeps things cool, and virtually eliminates resonances that can color your bass. Handles plenty of power The triple 2.5 aluminum voice coils combine with a 120-ounce magnet to handle up to 750 watts RMS, so make sure you have plenty of power on tap for these big boys. Easy-to-use color-coded jumpers allow you to wire the sub for 1 or 2 ohms for system flexibility, great news if you have a high-performance mono sub amp.