SKU: 51187044658

JL Audio XDM400/4 : 4ch x 75W/100W Marine Grade Amplifier @ 4Ω/2Ω

Sale price$306.00 Regular price$340.00
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Ships within 48 hours · Estimated delivery Oct 9 - Oct 14

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Description

JL Audio XDM400/4 : 4ch x 75W/100W Marine Grade Amplifier @ 4Ω/2ΩXDM Series Four Channel Class D Marine Grade Amplifier, 100 Watts x Four Channels @ 2 Ohm or 75 Watts x 4 Channels @ Four Ohm. The ultra compact XDM400 4 packs a serious full range punch, generating a whopping 100 watts to each of its four channels into 2 ohms (14. 4V, 1% THD). The technology that makes this much power possible in such a compact chassis is our advanced NexD high speed switching design, which permits full bandwidth Class D operation

XDM-Series Four-Channel Class-D Marine-Grade Amplifier, 100-Watts x Four-Channels @ 2-Ohm or 75-Watts x 4-Channels @ Four-Ohm.

The ultra-compact XDM400/4 packs a serious full-range punch, generating a whopping 100-watts to each of its four channels into 2-ohms (14.4V, 1% THD). The technology that makes this much power possible in such a compact chassis is our advanced NexD high-speed switching design, which permits full bandwidth Class-D operation with extremely low distortion and remarkable efficiency.

Suitable for car or boat installations, the XDM400/4 is built with marine-grade materials and features an exclusive, dual-mode input filter for noise-free performance in boats or cars. Automatic turn-on capability (via signal sensing or DC-offset sensing) is also onboard for easy factory system upgrades.

Combine the XDM400/4 with our XDM600/1 monoblock to build a stunning 1000W amplification system to power four satellites and a subwoofer... and fit the whole thing under a seat or deck. Or, use the XDM400/4 by itself to power two satellites, plus a subwoofer. 

The XDM400/4 includes a 12dB / 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 50-500Hz. With the addition of an optional HD-RLC or MHD-RLC (water-resistant) remote level controller (each sold separately), you have the ability to adjust the level of all amplifier channels or just the rear channels directly from the driver's seat or cockpit.

Finished in a sleek, black powder-coat, all controls are protected beneath a gasketed, removable top cover for easy access.

Output Specifications
  • @ 4 Ω
    75 W RMS x 4 @ 14.4V
    @ 2 Ω
    100 W RMS x 4 @ 14.4V
    Bridged @ 4Ω
    200 W RMS x 2 @ 14.4V
  • @ 4 Ω
    60 W RMS x 4 @ 12.5V
    @ 2 Ω
    90 W RMS x 4 @ 12.5V
    Bridged @ 4Ω
    180 W RMS x 2 @ 12.5V
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 Ω
    >150 / 50 Hz
    Damping Factor @ 2 Ω
    >75 / 50 Hz
    THD+N @ Rated Power
    <1% @ 2 Ω per Ch.
    Input Voltage Range @ RCA Inputs
    200 mV - 4 V RMS
    Min.Copper Power / Ground Wire Gauge
    4 AWG wire
    Fuse Rating
    40 A (AFS, AGU or MaxiFuse™)
Amplifier Settings
  • 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 or MHD-RLC (water-resistant)
    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
Documentation
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51187044658

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Jon
West Palm Beach, US
★★★★★ 1
Didnt fit my C300
Color: Silver
Didn’t fit my 2008 Mercedes C300 4matic sport. I bought another one on Amazon from a different company and it did fit. Eochi or something brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025
C
Verified Purchase
Courtney & Chris
Whiting, US
★★★★★ 1
Does not fit Boxster. Not even 74mm
Color: Silver
This is not measuring 74mm and absolutely does NOT fit my 2003 Porsche Boxster like the Amazon compatible check says it does.
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Reviewed in the United States on November 9, 2025
W
w
Whiting, US
★★★★★ 1
Amazon Vehicle Tool Parts Fitting App incorrect
Color: Silver
Amazon your Vehicle fit is Wrong this tool will not work at all on 1981 240D Mercedes oil filter
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Reviewed in the United States on November 24, 2025
C
Verified Purchase
Chantell B.
Fort Morgan, US
★★★★★ 5
Fits perfect
Fits perfect in 2018 x5
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Reviewed in the United States on May 10, 2026
R
Verified Purchase
RichD
Pawtucket, US
★★★★★ 5
OEM quality
BMW dealer wanted $300 to replace the cabin filters. Watched a 5 minute video and ordered these up. Look identical to OEM and easiest cabin filters I've installed. Save yourself a ton of money and install these yourself. BMW quality without the BMW price.
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Reviewed in the United States on August 26, 2025

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