Wide Frequency Range - With a frequency response of 40-22,000 Hz and impedance of 4 ohms, the KFC-1666S covers a broad range of frequencies, delivering a well-balanced audio experience with a sensitivity of 90 dB. High Power Handling - These speakers handle up to (300 watts peak power), allowing you to turn up the volume without compromising on sound quality. Effortless Installation - Grilles are thoughtfully included, making installation a breeze and providing added protection to the speakers, ensuring a seamless upgrade for your car's audio system. Enhanced Audio Performance - The polypropylene woofer with treated cloth surround ensures precise and impactful bass response, while the 1" PEI balanced dome tweeter produces crisp and detailed highs. Superior Sound Reproduction - Experience immersive audio with KENWOOD Car Stereo Speaker KFC-1666S, featuring 6-1/2" 2-way speakers, delivering impressive clarity and powerful bass.