Boss OHC694 6" x 9" 4-Way Die Cast Frame Speaker The diecast aluminum frames will make a high end statement in your system. The metallic electroplate injection cones provide durability and superior sound quality. POWER HANDLING, PEAK 900Watts; MAGNET STRUCTURE 80 OZ IMPEDANCE 4 OHM; FREQUENCY RESPONSE 40Hz20kHz; SPL 1 WATT/1 METER 95 dB CONE MATERIAL, ELECTROPLATE INJECTION VOICE COIL, 1-1/2-Inch ALUMINUM; TWEETER 2 X 3/4-Inch PIEZO; MIDRANGE 1-3/8-Inch POLYIMIDE DOME