Pioneer TS-MR1640 6.5-Inch 2-Way Marine Speakers Water-resistant white IMPP composite woofer 1-1/8-inch PEI dome tweeter with magnetic fluid and equalizer Strenuously resists water, corrosion, and heat 6-1/2-inch marine two-way speakers with 160 watts maximum power handling (30 watts nominal) Water-resistant white IMPP composite woofer 1-1/8-inch PEI dome tweeter with magnetic fluid and equalizer Strenuously resists water, corrosion, and heat 30 Hz to 30 kHz frequency response; 91 dB sensitivity