"http://www.amazon.com/gp/product/B00689OIO6?tag=httpadvance00-20<br />Maximum output and impact<br />Superior digital performance<br />Front-firing driver with down-firing ported cabinet<br />One-touch Auto-EQ room bass correction<br />Efficient green digital amplifiers <br />Velodyne 80-EQM12BV EQ-MAX 12-Inch Subwoofer (Black Vinyl)"
