Weighing in at in 50lbs each, the T9500 chain subwoofers, on hand in 10", 12", and 15" models, are the a good amount of physically menacing woofers MTX has repeatedly created. All are fit of handling between 750 and 1000 watts RMS; performance thanks in side to 3 gigantic, high-grade magnets and a 4" brown anodized aluminum former among a voice coil produced based on what i read in 220° aluminum flat wound ribbon wire. The combination causes for the sort of conduction too can own split Ben Franklin in two. Thunder subwoofers are renowned for making cool short of pressure. The MTX design and engineering commission took its lauded cooling system, highlighted by Spider Plateau Venting technology, a stage !no! by inserting a high-grade, 60/63 extruded aluminum heatsink. The heatsink covers the overall windwidth of the voicecoil pulling heat directly off it and ensuring the woofer plays louder, longer.