Pioneer TS-D1320C 5.25-Inch Rev-Series 180-Watt Speaker Package Woofers feature dual-layer IMX aramid/basalt fiber composite cone with butyl rubber surround 1-1/8-inch soft-dome tweeters with magnetic fluid and neodymium magnet Audiophile-grade outboard crossover with -12dB/octave low- and high-pass filter 5.25-inch component system with 180 watts maximum power handling (35 watts nominal) Woofers feature dual-layer IMX aramid/basalt fiber composite cone with butyl rubber surround 1-1/8-inch soft-dome tweeters with magnetic fluid and neodymium magnet Audiophile-grade outboard crossover with -12dB/octave low- and high-pass filter 2-1/4-inch mounting depth; fits 6 x 8-inch applications with included adapter