“Small” is not the real story here.

The MHD’s advanced technologies and no-nonsense design make these the best marine amplifiers, at any price. MHD amplifiers apply a patented switching technology called Single Cycle Control™ to deliver world-class sonic performance and very high power from what seems like an impossibly small package. The MHD’s tiny dimensions are made possible by their outstanding electrical efficiency (over 80% at 1/2 power), which also results in a lot less current draw from your boat’s batteries.

MHD Amplifiers also apply JL Audio's exclusive R.I.P.S. (Regulated, Intelligent Power Supply) technology to maintain rock-solid audio performance with any speaker load from 1.5 - 4 ohms, even with fluctuating battery voltage. This is a feature you won't find on any other marine amplifier.
Product Line Overview
As with all JL Audio marine amplifiers, our never-quit Advanced Rollback Protection circuitry is standard. So are noise-rejecting, differential-balanced inputs and a very comprehensive signal-processing section with variable slope crossovers (12dB or 24dB / octave). A very handy remote level control option allows you to install master or zone volume controls (sold separately) anywhere on your boat, even inside a cabin.

Yes, the game has changed.