More from Amazon.com : http://www.amazon.com/gp/product/B002JH2V8Q?tag=thefatkidin06-20 <br /> <br />Cerwin-Vega Cvhf-A21S 21-Inch Active Front-Firing Cvhf Stroker Subwoofer <br /> <br />1200W amplifier power <br />21-Inch carbon-fiber reinforced front-firing woofer <br />Freq resp 35 Hz-135 Hz 3 dB <br />Freq range 32 Hz-135 Hz -10 dB <br />Max SPL 135 dB
