The new ZRS Series is unmistakably Cadence. Professional studio grade quality means your system will deliver dynamic sound with natural transparency, unmatched impact, and perfect imaging. The ZRSW8 is an 8-Inch active amplified subwoofer. It has a low profile of 3-inch; now you can have bass reinforcement in tight spaces, perfect for trunks, small cars, convertibles, or even under your seat! It is made of a cast aluminum anti vibration chassis. The ZRSW8 has a RCA line level input and high level OEM radio integration. It has an LED power and diagnostic status indicator. There is a phase shift control for 0-180° and a +12dB variable bass boost equalization control. There is a low-pass electronic crossover, adjustable between 50-150Hz. The ZRSW8 has a soft start mute & delay turn-on-off circuitry and an IC controlled diagnostic circuitry. A dashboard mount remote bass control is included. The ZRSW8 has a power handling of 200 Watts RMS at 4 Ohm with a 600 Watt Peak. The frequency response is 20Hz - 120Hz with a sensitivity of 92dB @ 1w/1m SPL. It has a minimum total harmonic distortion of <0.05%, a signal-to-noise ratio of >100dB, and a damping factor of >100 @ 100Hz. The input voltage of the ZRSW8 is 200mV-3V. The dimensions of the chassis is 14.5-inch (L) x 9.5-inch (W) x 3-inch (H). Product comes with a two (2) year warranty.