A custom 15-inch low-frequency driver features an enlarged 3-inch voice coil and a 2,000W Class D amplifier. It delivers powerful low-end performance with a frequency response of 39 Hz to 95 Hz (-3 dB) and 32 Hz to 131 Hz (-10 dB), with a maximum SPL of 128 dB. | Presonus | | Air XD Sub 15 1x15 Inch 2000W Active Extended Definition Subwoofer | Best Buy