Polk Audio DB521 5.25-Inch Coaxial Speakers (Pair, Silver) Overviews
db521 5.25 Inch Coaxial Speaker
Polk Audio DB521 5.25-Inch Coaxial Speakers (Pair, Silver) Features
- Pair of marine certified speakers exquisite for use in boats of all types
- Equipped with a 0.75-inch liquid-cooled silk-polymer composite dome tweeter
- Maximum input power: 135 watts
- Equipped with a dynamic balance polymer/mica composite mineral-filled cone for a big sound
- Durable butyl rubber surround stands up to the stress of extreme temperatures, sunlight and time
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