200 watts Peak Each, 40 watts RMS Each Mylar Balanced Dome Tweeters Polypropylene cone material Impedance: 4 ohms Sensitivity: 90 dB 6-1/2" 2-way Component System Car Speakers. Power Handling: Peak: 400 watts per set / 200 watts each side RMS: 80 watts per set / 40 watts each side. Frequency Response: 55 - 20,000 Hz. Sensitivity: 90 dB and Impedance: 4 ohms. Made of Polypropylene cone material, Rubber speaker surround, Ferrite magnet motor structure and Mylar Balanced Dome Tweeters.