PS Sub 300 is our top of the line sub in this series. With a massive 2.5-inch voice coil, 50 Ounce magnet and 300W amplifier this sub sets a new standard in affordable compact subwoofer design. We employ an audiophile quality heavyweight fibercone 12-inch woofer and high power amplifier to deliver solid, gripping bass down into the 20Hz range. All this in a cabinet less than a 15-inch cube.