JL Audio M400/4 Class D 4-Channel Marine Amplifier

M-Series Marine Amplifiers

Last year, the MHD amplifiers set a new benchmark for fidelity and efficiency in marine amplification. This year, our newest marine amplifiers take our leadership in switching amplifier design and apply it to even more affordable and compact designs that open up a whole new set of installation opportunities.

The new M Amplifiers amplifiers employ JL Audio's hyper-efficient NexD technology to unleash huge, audiophile-grade performance from an amazingly compact package. Achieving total efficiencies above 80NexD Logo% and employing an unregulated power supply, M amplifiers strike an impressive balance of fidelity, power and size while also putting far less strain on your vessel's electrical system than conventional "big" amplifiers.

A unitary cast alloy chassis provides ample cooling for the efficient circuitry and is monitored by our Advanced Rollback System to eliminate annoying thermal shut-down events.

Beneath a removable control cover with a moisture-proof gasket, the M Amplifers feature studio-grade signal processing with fully variable crossover filters. Also included are our noise-killing, highly flexible differential-balanced inputs with remote level control capabilities via the HD-RLC remote level control (optional).

Some might just see a small amplifier... But, for those who appreciate great audio, the new M Amplifiers reveal something huge.