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4 Ch. Class D Full-Range Marine Amplifier, 400 W

JL Audio M4004

Features

  • Patented Technology: Single Cycle Control. (U.S. Patent #6,084,450*)
  • Inputs: Two Stereo Pairs
  • On-board Crossover: State-variable, 12dB/octave Butterworth with continuously variable cutoff frequency selection from 50-500 Hz. Configurable as Low-Pass or High-Pass. Defeatable.
  • Speaker output connections: Accept up to 12 AWG wire

Quick Specs

  • Type: Amplifiers
  • Width: 8.52"
  • Height: 2.05"
  • Depth: 7.09"
  • Energy Star Rated: No

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4-Channel Class D Marine Full-Range Amplifier, 100 W x 4 @ 2 / 75 W x 4 @ 4 - 14.4V


This tiny amplifier packs a serious full-range punch, delivering a staggering 100 watts to each of its four channels into 2 (14.4V, 1% THD). The breakthrough that makes this much power possible in such a small chassis is our NexD™ ultra-high-speed switching design, which allows for full bandwidth Class D operation with extremely low distortion and outstanding efficiency.

Use the M400/4 in combination with our M600/1 monoblock to build a 1000 W amplification system to power four satellites and a subwoofer... and fit the whole thing under a seat. Or, use the M400/4 by itself to power two satellites, plus a subwoofer. With M-Series amplifier, the possibilities are endless.

The M400/4 includes a 12 dB / octave filter for each channel bank, which can be configured as a low-pass or high-pass filter and offers continuously variable cutoff frequency selection from 50-500 Hz. With the addition of an HD-RLC remote level control (sold separately), the amplifier's Ch. 1 & 2 level or overall level can be directly controlled from a remote location.

This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment.


Technology

NexD™ Switching Technology

NexD™ amplifier technologies produce exceptional audio quality, unsurpassed total efficiency and high power from very compact amplifier designs.


Advanced Rollback Protection

JL Audio's exclusive Advanced Rollback Protection circuit monitors the amplifier's thermal condition and adjusts amplifier operation to eliminate annoying amplifier shut-down events.


Features

  • Patented Technology: Single Cycle Control. (U.S. Patent #6,084,450*)
  • Inputs: Two Stereo Pairs
  • On-board Crossover: State-variable, 12dB/octave Butterworth with continuously variable cutoff frequency selection from 50-500 Hz. Configurable as Low-Pass or High-Pass. Defeatable.
  • Speaker output connections: Accept up to 12 AWG wire
  • +12V and Ground connections: Accept up to 4 AWG wire
  • Rated Power 14.4 V Stereo: 5W RMS x 4 @ 4 ohms, 100W RMS x 4 @ 2 ohms
  • Rated Power 14.4 V Bridged: 150W RMS x 2 @ 8 ohms, 200W RMS x 2 @ 4 ohms
  • Rated Power 12.5 V Stereo: 60W RMS x 4 @ 4 ohms, 90W RMS x 4 @ 2 ohms
  • Rated Power 12.5 V Bridged: 120W RMS x 2 @ 8 ohms, 180W RMS x 2 @ 4 ohms
  • THD at Rated Power: <1% THD+Noise (20Hz - 20 kHz)
  • S/N Ratio: >104 dB referred to rated power (A-weighted, 20 Hz-20 kHz noise bandwidth), >84 dB referred to 1W (A-weighted, 20 Hz-20 kHz noise bandwidth)
  • Frequency Response: 12 Hz - 22 kHz (+0, -1dB)
  • Damping Factor: >150 @ 4 ohms per ch./ 50 Hz; >75 @ 2 ohms per ch. / 50 Hz
  • Input Range: 100mV - 4V RMS
  • Dimensions (L x W x H): 8.52 in. x 7.09 in. x 2.05 in., (217 mm x 180 mm x 52 mm)
Rated Continuous (RMS) Power @ 14.4 V
@ 4 75 W RMS x 4
@ 2 100 W RMS x 4
Bridged @ 4 200 W RMS x 2
Rated Continuous (RMS) Power @ 12.5 V
@ 4 60 W RMS x 4
@ 2 90 W RMS x 4
Bridged @ 4 180 W RMS x 2
General Specifications
Frequency Response 12 Hz - 22 kHz (+0, -1dB)
S/N Ratio, referred to highest rated power >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 >150 / 50 Hz
Damping Factor @ 2 >75 / 50 Hz
THD+N @ Rated Power <1% @ 2 per Ch.
Input Voltage Range @ RCA Inputs 100 mV - 4 V RMS
Min.Copper Power / Ground Wire Gauge 4 AWG wire
Fuse Rating 40 A (AFS, AGU or MaxiFuse™)
Signal Processing
Filter Mode(s) Low-Pass or High-Pass
Filter Slope(s) 12 dB/octave
Filter Frequency Range 50 Hz - 500 Hz
Detented, Calibrated Filter Freq. Potentiometers Yes
Filter Defeat Function Yes
Remote Level Control Optional (HD-RLC)
Remote Level Modes 2 or All channels
Channel Input Mode Switch Yes (2/4 ch.)
Pass-Through Preamp Output Buffered
Source Channel Selection for PreOuts Yes
Physical Specifications
Height (H) 2.05 in / 52 mm
Width (W) 8.52 in / 216 mm
Depth (D) 7.09 in / 180 mm
Net Weight 4.75 lb / 2.15 kg

Quick Specs


  • Appearance

  • Type: Amplifiers

  • Dimensions

  • Width: 8.52"
  • Height: 2.05"
  • Depth: 7.09"

  • Features

  • Energy Star Rated: No

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.