Boss SE422 CHAOS 4-Inch 200-Watt 2-Way Speaker 4" 2-Way Speaker 200W Peak Power Handling 4 OHM Impedance 100Hz - 18KHz Frequency Response Poly Injection Cone Material POWER HANDLING, PEAK 200 Watts MAGNET STRUCTURE, 2O 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-Inch POLYIMIDE DOME; MIDRANGE, N/A