Another product from the Type-R series, this Alpine subwoofer uses materials like Kevlar and advanced technology to bring tight, accurate, and loud bass to your car audio system. The Alpine SWR-1242D Car Subwoofer produces a powerful 500 Watt RMS of nominal power that can reach peak power handling of 1500 Watt, making it an ideal companion for most car audio amplifiers. With a large size of around 11 x 12 inches, the Alpine SWR-1242D Car Subwoofer is protected by Alpine’s Thermal Management features. This Alpine subwoofer reproduces frequencies of 24 Hz to 500 Hz with a sensitivity of 85 dB, effortlessly bringing out the lows in your tunes.