MR6B 6.5 Dual Cone Marine Coaxial Speaker (Pair) - 180W - BlackBoss Audio's 6.5 Dual Cone 180-watt Marine Coaxial Speaker.Features:Speaker Type: CoaxialConfiguration: Dual ConeWoofer Size: 6.5Color: BlackSupplied Grill: YesMounting Depth: 2.1875Mounting Diameter: 6.75Standard Warranty: 1 YearSpecifications:Peak Power Handling: 180 WattsSystem Impedance: 4System Sensitivity (1W/1m): 89 dBSystem Frequency Response: 80 Hz to 20 kHz, +/- 1 dBWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.