Boss SE693 CHAOS 6-Inch X 9-Inch 400-Watt 3-Way Speaker 6" x 9" 3-Way Speakers 400W Peak Power Handling 4 OHM Impedance 50Hz - 20kHz Frequency Response Poly Injection Cone Material POWER HANDLING, PEAK 400 Watts MAGNET STRUCTURE, 60 OZ; IMPEDANCE, 4 OHM FREQUENCY RESPONSE, 50Hz20kHz; SPL 1 WATT/1 METER 92 dB CONE MATERIAL, POLY INJECTION; VOICE COIL, 1-Inch ALUMINUM TWEETER, 3/4-Inch PIEZO; MIDRANGE, 2-Inch POLYIMIDE CONE