Boss D46.2 Diablo 4" x 6" 2-Way Speaker - Single (Black) DIABLO speakers utilize high quality poly injection cones with rubber surrounds for top performance. A custom tooled bridge houses midranges and tweeters for outstanding mid and high frequency response. POWER HANDLING, PEAK 250 Watts; MAGNET STRUCTURE, 25 OZ IMPEDANCE, 4 OHM; FREQUENCY RESPONSE, 85Hz20kHz; SPL 1 WATT/1 METER, 90 dB CONE MATERIAL, POLY INJECTION VOICE COIL, 1-Inch ALUMINUM; TWEETER, 1-Inch MYLAR DOME; MIDRANGE, N/A