Dual Electronics DWS404 4" 4-Way 120 Watts Speakers - Pair Peak power: 120 Watts - RMS power: 30 Watts Injection molded Polypropylene woofer cone for accurate bass response - Mylar dome midrange balanced for enhanced vocal clarity Frequency Response: 80Hz - 20kHz - Piezo tweeter for extended high-frequency response Cutout diameter: 3.7" - Aluminum voice coil Nominal impedance: 4 Ohms - Rubber surrounds to withstand heat and moisture