The new KFC-X183C is a true upgrade to a factory speaker system. It can handle up to 280W of of output and can be easily installed in Dodge, GM, Toyota and Chevrolet vehicles. Each pair of KFC-X183C speakers comes with a special multi-fit bracket. This bracket can be easily modified for use in a variety of makes associated with the above mentioned vehicle manufacturers. In addition the speaker features an oversized diaphragm that is 28% bigger than the KFC-X173 so it delivers exceptional audio reproduction. 280W Peak power handling80W RMS power handling4Ohm ImpedanceFrequency Response 63Hz - 17kHzMounting Depth 2-7/16"1" Soft Dome TweeterMulti Bracket and 6x9 bracket General Features Woofer           Woofer Size 7 in (180mm)Woofer Diaphragm P.P. ConeSurround RubberBasket Steel (Black)Magnet Ferrite Tweeter         Tweeter Size 1 in (25mm)Tweeter Diaphragm Soft Dome Dimensions (without grill)     Width 6-9/16 in (166mm)Height 6-9/16 in (166mm)Depth 3-3/16 in (81mm)Mounting Depth 2-7/16 in (62mm) SpecificationsNominal Impedance 4 ?Maximum Peak Power 280 WRated Input Power (RMS) 80 WSensitivity 87 dB/W at 1mFrequency Response 63Hz - 17kHz