Pioneer TS-MR2040 8" 20cm 2-Way Marine Car SpeakersPioneer TS MR2040 8" 20cm 2 Way Marine Car Speakers With heavy duty construction that strenuously resists water, corrosion and heat, these marine speakers are designed to deliver a consistently dynamic sound outdoors and on the water . Featuring a water resistant IMPP Composite Cone, the speaker produces outstanding mid bass response and resists the effects of salt water, humidity and extreme heat. Each speaker utilizes an elastomer surround that