Polk Audio db6501 6-1/2" component speaker system Certified for marine use

component speaker system includes two 6-1/2" woofers, 2 tweeters, and 2 crossovers * Dynamic Balance polymer/mica composite woofer with butyl rubber surround * 1" liquid-cooled silk/polymer composite dome tweeter * 2-way external crossover network (12 dB/octave, 4,000 Hz high- and low-pass) * power range: 10-100 watts RMS (300 watts peak power) *