Boss SE552 CHAOS 5.25-Inch 200 Watt 2-Way Speaker 5.25" 2-Way Speaker 200W Peak Power Handling 4 OHM Impedance 100Hz - 18KHz Frequency Response Poly Injection Cone Material POWER HANDLING, PEAK 250 Watts MAGNET STRUCTURE, 30 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