Polk Audio - A Pair Of DB652 6.5" Coaxial and A Pair Of DB402 4" Speakers - Bundle Includes 2 Pair Perfect for anything: Cars, Trucks, Boats ATVs & More. Everything you love about Polk's Dynamic Balance technology—that rich, clean, full-range sound—is built into the marine-tough, yet ruggedly sophisticated, DB+ series. And with its universal fit, it can be installed in any vehicle: Automobiles, motorcycles, boats, ATVs—you name it. Polk DB652 6.5" Coaxial Speakers with Marine Certification Specifications: Driver Enclosure Type - Marine Certified Cut Out Shape - Round Cut Out Diameter - 5" (12.7 cm) Full-Range Mounting Depth - Top Mount 1.77" (4.5 cm) Total Frequency Response - 40 Hz → 22 kHz Nominal Impedance - 4 ohms Sensitivity (1 watt @ 1 meter) - 92 dB Continuous Power Handling (RMS) - 100W Peak Power Handling - 300W Polk DB402 4" Coaxial Speakers with Marine Certification Specifications: Driver Enclosure Type - Marine Certified Cut Out Shape - Circle Cut Out Diameter - 4.09" (10.39 cm) Full-Range Mounting Depth - Top Mount 1.79" (4.55 cm) Total Frequency Response - 60 Hz → 22 kHz Nominal Impedance - 4 ohms Sensitivity (1 watt @ 1 meter) - 90 dB Continuous Power Handling (RMS) - 45W Peak Power Handling - 135W High Performance Upgrade - Upgrade from your OEM speaker system toward a bigger, fuller, high-performance sound. Marine Certification - The DB+ Series is IP55 rated so it's dirt- & water- resistant. It also has been tested for salt-fog, UV and humidity. Universal Fit - Enjoy a simple drop in installation for any vehicle including cars, boats, ATV's -- you name it. This quick and easy experience also ensures a faster installation process so you can get back to what matters with our great sound always along for the ride.