Alpine Marine products combine superb performance and maximum power efficiency, which are outstandingly robust and uncompromisingly suitable for marine use. Rigorous UV light, salt-water and water intrusion protection is applied to the units ensuring a durable, long-lasting marine system. Alpine Marine products meet the ASTM guidelines for salt fog testing as well as ASTM UV-weathering testing. Speakers, subwoofers and controls units also meet the NEMA water and dust intrusion ratings on a high level, all electronics are water-repellent coated.