Polk DB571 5x7" 2-Way Speaker 180 watts max

2-way car speakers (pair) for 5"x7" and 6"x8" openingsDynamic Balance polymer/mica composite woofer with butyl rubber surround3/4" liquid-cooled silk/polymer composite dome tweeterNeodymium tweeter magnetKapton voice coilbuilt-in 2-way crossover networkstainless steel mounting hardware (certified for marine use)power range: 6-60 watts RMS (180 watts peak power)frequency response: 52-22,000 Hzsensitivity: 93 dBtop-mount depth: 1-3/4"No Grills!