Polk Audio DB1001 1-Inch Silk/Polymer Composite Dome Tweeters (Pair, Black) Pair of marine certified composite dome tweeters perfect for use in boats of all types Maximum input power: 180 watts One 1-inch liquid-cooled silk-polymer composite dome tweeter per speaker Equipped with a neodymium magnet for clear, detailed highs Flush surface mount swivel cups allow placement flexibility and optimization