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 80% 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.