Jensen MSX65R 6 1/2 High Performace Coaxial Marine SpeakerFeaturesMax power handling: 150 Watts (Pair)Frequency: 65Hz-20kHzNominal impedance: 4 OhmsPolypropylene woofer: 6-1/2Magnet: 11 oz.Mounting hole diameter: 5Mounting depth: 2-1/4Tweeter type: Dome; Tweeter material: SilkASTM B117 salt spray exposure compliantASTM D4329 UV exposure standard compliantPackage contains white and silver grillesWARNING: 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.