Alpine PWA-S10V<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>10-inch mounted subwoofer and amplifier in a ported enclosure</li><li>250 watts of total system power with both sub and amp</li><li>Bassline grill for stylish and protective finish</li><li>Subwoofer features 2-ohm design， frequency response of 26 - 400 Hz， and poly-foam surround</li><li>Mono-channel amplifier features Class D platform， MOSFET power， and 80% greater efficiency</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41I4M74-OcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41sm7ksiOyL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41M27DJYEHL.jpg" noproxy>