FR4021 4" Round 2-Way IPX65 Marine Speaker - 120W - Pair - WhiteFUSION's Full Range Marine Speakers are designed and engineered specifically for the marine environment. FUSION's marine speakers include design innovations and materials that not only produce great sound, but also ensure a sustained high performance level during prolonged exposure to the marine elements.Incorporating the latest German 'CURV' cone technology and titanium tweeter dome for clear, powerful sound in the harsh marine environment. 'CURV' technology incorporates a woven fibre composite which is heat pressed to form a lighter and stronger cone. This creates greater sound definition, higher output and greater resistance to the marine environment. Engineered to minimise magnetic interference to navigational equipment.Features:Comply with ASTM Standards for UV Stability and Salt/Fog ResistanceComply with IP65 Waterproof and Dust Standards4" 2-Way, 120 Watts Max PowerGerman Curv Cone TechnologyManufactured from a self-reinforced polypropylene composite. Heat pressed to form a lighter, stronger cone, creating greater definition of sound, higher output and greater resistance to the harsh marine environment.Titanium Tweeter DomeA strong, heat-resistant and light material, chosen to reproduce bright and critical detail for the true audiophile experience.True Marine DesignComplies with international IP65 water and dust resistant standards. FEaturing a fully sealed crossover, magnet and tweeter housing with waterproof cone and surrounds.True Marine ProtectionEngineered to withstand the harsh marine environment and in compliance with international ASTM standards for UV stability (ASTM-D4329) and salt/fog resistance (ASTM-B117).True Power SavingHigh efficiency design reduces battery drain.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.