Upgrade the sound on your boat with JBLR power that can take on the open seas. The MA6004 has marinized circuit boards to keep salt air and corrosion away and survive the brutal conditions of heavy waves and harsh weather. You’ll have tuning options for systems of any size, variable bass boost and easy installation in tight spaces. You’d be hard pressed to find a better audio system for any voyage, whether it’s a leisurely afternoon on a placid lake or a race across the Atlantic. And your next party out there? It can sound great!