Make your cruising more pleasant and enjoyable with top-drawer speakers that will change your world of sound. Boss Audio MR6B Dual Cone Speakers are extremely durable and made to provide years of reliable, hassle-free service.• Weatherproof full-range 6.5" speakers• Power Handling: 180W Max / 90W RMS per pair• Frequency Response: 80 Hz to 20 kHz• Sensitivity: 89 dB• Impedance: 4 ohms• 6.5" polypropylene woofer cone• Rubber surround• Mounting Diameter: 5.75"• Mounting Depth: 2.18"• Sold as a pair 6.5" polypropylene woofer cone Full range 80 Hz to 20 kHz frequency response 5.75" mounting diameter | MR6B 6.5" Dual Cone Speakers, Pair