Our best-selling JL Audio M-Series marine amplifiers deliver huge value. The JL Audio M-Series amplifiers are the perfect solution for space-conscious installations or for anyone seeking affordable excellence in a marine amplifier. Instead of relying on antiquated, inefficient amplifier designs, JL Audio M-Series amplifiers employ our exclusive NexD™ switching technology to achieve total amplifier efficiencies exceeding 80%. This means they run much cooler and put less strain on your vessel’s electrical system than a conventional amplifier. It also allows for very impressive power output from a very compact amplifier, which greatly simplifies installation in tight spaces.