Kenwood KFC-6986PS 4 Way 400W Car Audio Flush Mount Coaxial Stereo Speakers

6 in. x 9 in. 4-way speakers 140 watts RMS, 600 watts max Polypropylene, diamond-array woofer cones with treated foam surround Acoustic Sound Harmonizer improves response in the 3,000 Hz to 4,000 Hz range