Holy smokes, these are cool! We got our first shipment in today of the brand new, JBL Arena 12" subwoofers. This thing is a beast, built extremely well. It handles up to 800 watts RMS of power. It has SSI technology, which allows the subwoofer to be selected to be either a 4 ohm, or 2 ohm. Extremely versitile. The JBL Stadium subwoofers are this guys "little brother" and those sound fantastic..... We cant wait to get one in a car to hear it. Message us today if you want to get one in your car!