DESC: The 422 SB features a 12 long-throw composite cone driver with a vented motor structure and 2 high temperature, 4-layer voice coil. This powerful driver has a very stiff cone that acts like a piston throughout its operating range, which allow its massive magnetic motor assembly and high temperature component parts to deliver exceptional performance and reliability. By utilizing a sealed enclosure design, the 422 SB offers unusually low distortion, and delivers deep smooth bass response with a gradual and predictable roll-off below resonance. As with all Atlantic Technology subwoofers, we have paid close attention to balancing accurate musical bass reproduction with terrific special effects slam. Featuring a specially designed amplifier capable of high current delivery for exceptional driver control and cool operation. The 225 watt amplifier featured in the 422 SB has been precision matched and equalized to work in tandem with our rugged drivers. Together they deliver powerful, controlled bass with unusual a