Polk Audio – Two Pairs Of DB652 6.5″ Coaxial Speakers – Marine and Powersports Certification 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. 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 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. Polypropylene UV Tolerant Cone – Enjoy the peace of mind knowing each speaker cone is built to last, whose clean and polished look won’t discolor or degrade over time. Waterproof Inner and Outer Surrounds – Completely blocks dirt, liquid and grime from entering the speaker housing. 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. Zero Tweeter Protrusion – Each speaker in the DB+ Series features a shallow tweeter design to ensure your factory speaker grille re-installs with ease for a flush, seamless look.