Pioneer TS-A1682R 4-Way 6.5-Inch 280-Watt Speaker (Discontinued by Manufacturer) Injection-Molded Polypropylene (IMPP) woofer with Aramid fiber and butyl rubber surround 1/2 PET dome tweeter and 3/8 PET dome super tweeter 1.5 lightweight diaphragm balanced-dome midrange Power range - 2-50 watts RMS (280 watts peak power) Frequency response - 30-33,000 Hz