Style: 8-Ohm Impedance This Sound 8 ohm 8 inch driver has a max wattage of 200 watts and is designed and engineered right here in the USA. This woofer features a 20oz magnet with bumper plate and vented pole piece. The poly laminated cone has a rolled foam surround. This woofer is a high end, pro audio transducer optimized for all musical instrument, DJ, car audio and professional applications.