Cutting edge 4-1/2" two-way rear coaxial stereo speakers Waterproof, high output, midrange speaker is driven by a sturdy state of the art neodymium magnet with poly mylar tweeter, delivering unmatched sound quality Rated with 3 ohms of impedance, 120 watts of maximum power and 30 watt RMS, with 0.8 Ohm Tweeter with harness