These Goldwood Sound 8 ohm 12 inch drivers have a max wattage of 450 watts each and are designed and engineered right here in the USA. Each subwoofer features a 50oz magnet with bumper plate, vented pole piece, rubber surround and poly-mica cone. These subwoofers are high end, pro audio transducers optimized for all musical instrument, DJ, car audio and professional applications.