Woofers8” PP (polypropylene) mica cone Tweeters1” fluid-cooled soft dome Swivel Tweeter and Midrange Driver(Tweeters) Paintable Grill with Protective Cover IncludedYes Frequency Response50 Hz – 28 kHz Sensitivity90 dB (2.83 V, 1 m) Input Power (Maximum / Nominal)140W / 50W Impedance8 Ohms.