BOSS AUDIO MR650 Marine  6.5" 2-way 250-watt Full Range Speakers Weather Proof Full Range 6.5" 2-way Speaker Pair 250 Watts MAX 125 Watts RMS Power Handling per Pair 60 Hz to 18 kHz Frequency Response and 90dB Sensitivity Polypropylene Woofer Cone with Rubber Surround 1 Tweeter Per Speaker 3 Year Platinum Dealer Warranty POWER HANDLING, PEAK 250 Watts MAGNET STRUCTURE, 50 Oz; IMPEDANCE, 4 OHM FREQUENCY RESPONSE, 60HZ-18KHZ; SPL 1 WATT/1 METER, 90 dB; CONE MATERIAL, POLY INJECTION VOICE COIL, 1-Inch ALUMINUM; TWEETER, 1-Inch MYLAR DOME; GRILLES, PLASTIC