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  • JL Audio M400/4 4 Channel Marine Amplifier
  • JL Audio M400/4 4 Channel Marine Amplifier

JL Audio M400/4 4 Channel Marine Amplifier

Product Code : M4004

List Price: $619.00 On Sale: $488.85 (GST Included) (You save 21.03%)

In Stock


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Product Info

Product Info

JL Audio M400/4 4 Channel Marine Amplifier

We Think YOU Should Know

  • 12 Month JL Audio Australian Warranty
  • Risk Free Purchase Guarantee (bottom of page)
  • 4 Channel Class D
  • 100 W x 4 @ 2Ω - 14.4V
  • 75 W x 4 @ 4 Ω - 14.4V
  • preamp-level inputs
  • preamp outputs
  • 400 watts peak power
  • variable high- and low-pass filters (50-500 Hz, 12 dB per octave)
  • 75 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
  • 200 watts RMS x 2 in bridged mode (4-ohm stable in bridged mode)
JL Audio - The Company
Back in 1975 one of the biggest brands in car audio was born, JL Audio. It took nearly 15 years of development and production but by the early 1990's JL Audio powered cars starting winning IASCA Car Audio competitions and shows in the USA and the brand JL had now laid its mark and was on the way to becoming one of the most renowned brands in car speakers, amplifiers and subwoofers.
JL Audio - The Amplifier
This tiny amplifier packs a serious full-range punch, delivering a staggering 100 watts to each of its four channels into 2 Ω (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.


Peace of Mind Purchase Guarantee & Declaration of Warranty
This product is supplied directly via JL Audio Australia and enjoys the FULL benefits of the 'JL Audio Australian Warranty'. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). In the event that this product should fail please contact our service department to arrange service for this product or you also have the option of speaking with JL Audio Australia directly.

We are a FULLY AUTHORISED Australian retailer for JL Audio Australia.

This product will be shipped from our Sydney Warehouse and you are welcome to pick it up directly from our store in Sydney. This product is NOT DROP SHIPPED from overseas.

Tech Specs

Technical Specifications

Rated Continuous (RMS) Power @ 14.4 V

@ 4 Ω

75 W RMS x 4

@ 2 Ω

100 W RMS x 4

Bridged @ 4Ω

200 W RMS x 2

Rated Continuous (RMS) Power @ 12.5 V

@ 4 Ω

60 W RMS x 4

@ 2 Ω

90 W RMS x 4

Bridged @ 4Ω

180 W RMS x 2

General Specifications

S/N Ratio, referred to highest rated power

>104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)

Damping Factor @ 4 Ω

>150 / 50 Hz

THD+N @ Rated Power

<1% @ 2 Ω per Ch.

Min Copper Power / Ground Wire Gauge

4 AWG wire

Signal Processing

Filter Modes

Low-Pass or High-Pass

Filter Slope (dB/Octave)

12 dB

Filter Frequency Range

50-500 Hz

Detented, Calibrated Filter Freq. Potentiometers


Filter Defeatable?


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 Type


Source Channel Selection for PreOuts


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

In The Box

What's Included?

  • JL Audio M400/4 4 Channel Marine Amplifier

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