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MHD
MHD600/4
MHD750/1
MHD900/5
M-Series Marine
M400/4
M600/1
M600/6
XD
 
Tutorials Reviews
M-Series Amplifiers: Technologies
Huge.
Amazingly small in size, but huge in audio performance, the JL Audio M-Series amplifiers are the perfect solution for space-conscious installations or for anyone seeking affordable excellence in a mobile amplifier.
 
JL Audio's exclusive NexD™ switching technology achieves total amplifier efficiencies exceeding 80%, which means far less heat and less strain on your vehicle's electrical system than a conventional large amplifier. This efficiency advantage, combined with state-of-the-art microelectronic components allows us to use very compact unitary cast alloy heat sinks. As with their more expensive MHD siblings, the M-Series also deploy our Advanced Thermal Rollback System to completely eliminate annoying thermal shut-down events. 
 
Beneath every M-Series amplifier's removable control cover, you will find studio-grade signal processing with fully variable crossover filters. Also included are our noise-killing, differential 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, M-Series amplifiers reveal something huge. 
 

Incredibly Compact and Powerful
Advanced NexD™ switching technology
produces huge, clean power in half the
space of conventional amplifiers!

XD size

 

 
 
NexD NexD™ Class D Technology  Cutting-edge switching technology reduces distortion and delivers exceptional efficiency more info...

protection Advanced Rollback Protection
Borrowing a page from the HD amplifiers' bag of tricks, the XD  amplifiers employ advanced thermal and low-impedance protection to virtually eliminate annoying amplifier shut-down events. more info...
Active Crossover Active Crossover Features
Fully variable 12dB/octave filters with detented filter frequency selection controls offer excellent tuning flexibility. more info...


Preouts Preamp Outputs
Pass-through pre-amp outputs permit interconnection of multiple amplifiers (except M600/6). more info...

RLC Remote Level Control (HD-RLC)
With the addition of an HD-RLC you can control the overall level of the amplifier (or amplifiers) from the front of your vehicle.  more info...


Inputs Differential Inputs
Greatly reduce noise common to marine installations. more info...



input sensInput Sensitivity Setting Tutorial
Learn how to properly set input sensitivity ("gain") in this interactive, easy to follow tutorial (Flash required). more info...


 
 

 

 
     
 
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