polk - DB+ 522 Coaxial Speakers with Marine Certification

5.25" Coaxial / 19mm liquid-cooled silk/polymer composite dome tweeter with neodymium magnet for clear, detailed highs / Total Frequency Response 55Hz-22kHz / Nominal Impedance 4 ohms / Efficiency 91 dB / Continuous Power 100 watts / Peak 300 watts

 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.

High Performance Audio Upgrade -  Delivers a signature and quality sound that goes beyond OEM factory systems

Marine Certified - Built to last for cars, boats and ATVs with IP55 rating

Universal Fit -  Simple, drop-in installation for most vehicles

Dynamic Balance Technology - Reproduces Polk�s rich, clean, full-range sound

High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems

Marine certified with IP65 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity

Polypropylene and UV tolerant cone with waterproof inner and outer surrounds

Simple drop-in installation for any vehicle including cars, boats, ATVs�you name it

Zero tweeter protrusion and reduced mounting depth for a precise fit

Dynamic Balance technology offers a rich, clean, full-range sound

��, 20mm Tweeter ensures clear, balanced mids and highs

100 Watts at Continuous Power; 300 Watts at Peak Power