With 2,000-watt peak power handling, the Alpine SWR-1542D car subwoofer gives you loud and clear bass, whatever your musical taste. A frequency response range of 22 to 500 Hz means that even the slightest of nuances can be heard clearly, without any less of kick. With an impedance of 4 ohms, this subwoofer offers high-level resistance to increase bass and mid output, ideally complementing your existing speaker setup to provide clear, full-picture audio. With a top mounting depth of 9.2 inches, you can fit this subwoofer easily anywhere in your car, keeping the cargo space profile to a minimum. This Alpine 1-way subwoofer flaunts a sensitivity of 87dB, for maximum power and impact - even at low volumes.