Stereo Integrity’s Home Theater subwoofers are designed to offer exceptional sound quality and low frequency extension. The HT series of woofers are handsomely equipped with all of the features that you’re looking for. To help keep the voice coil stay cool there is a custom tooled vented spacer ring sandwiched between the basket and the motor to allow cool air to be sucked in around the outside of the coil winding’s. Other elements are class leading 22.5 mm of Xmax and 30 mm of Xmech ensuring plenty of both linear, and peak, travel for those deep bass requirements. You can’t get this much linear displacement for the dollar anywhere else.