SCOSCHE HD4004 HD Speakers - 4" Set The HD Speakers by Scosche have been designed to maximize the listening experience of your car audio entertainment system IMPP injection molded polypropylene cone for enhanced durability and precise musical reproduction. Reacts instantly to transitions in music and minimizes acoustical output distortion. 3 way design provides powerful bass, smooth mids and brilliant highs. This design features a 4" woofer, 1.2" midrange and 0.6" tweeter. Protective grills are included for increased shielding. 150 watts max (30 watts RMS) for an increased performance. Rubber surround provides enhanced durability Excellent for 2 or 4 hole factory mounting locations