Boss D69.3 Diablo 6" x 9" 3-Way Speaker - Single (Black) Single 3-way 6x9-inch car speaker Equipped with one 1-inch aluminum voice coil, a 0.5-inch piezo tweeter and one 1-inch mylar dome woofer Frequency response: 45Hz20kHz Peak power handling: 600 watts 65 oz magnet structure