BOSS Audio SE653 Chaos Special Edition 6.5-inch 3-way 300-watt Coaxial Speaker POWER HANDLING, PEAK 300 Watts MAGNET STRUCTURE, 40 OZ; IMPEDANCE, 4 OHM FREQUENCY RESPONSE, 100Hz18kHz; SPL 1 WATT/1 METER, 90 dB CONE MATERIAL, POLY INJECTION; VOICE COIL, 1-Inch ALUMINUM TWEETER, 1/2-Inch PIEZO; MIDRANGE, 1-Inch POLYIMIDE DOME