MB Quart Formula 6 x 9 inch 2-way coaxial car speakers with aluminum dome tweeters and Butyl rubber surroundsWeight 6.15 lbsType SpeakerBrand MB QuartSeries FormulaCategory MobileCondition NewColor BlackWarranty 1 YearSpeaker RMS Power Handling (watts) 75Speaker Peak Power Handling (watts) 150Speaker Impedance (ohms) 46Hz-20kHzSpeaker Sensitivity 88dBSpeaker Crossover Slope 1kHz + 3kHz 12dBSpeaker Mounting Diameter / Cut Out (in) 8.64 x 5.98Speaker Outside Diameter (in) 10.35 x 7.20Speaker Mounting Depth / Chassis Depth (in) 3.35Speaker Size (in) 6 x 9Proposition 65 Notice WARNING: This product can expose you to chemicals including LEAD, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.