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 Aug 15 - Aug 20

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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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M
Verified Purchase
MJake
Carnegie, US
★★★★★ 4
Easy to use
Color: Silver, Memory Storage Capacity: 128 GB, Set name: Wi-Fi
Good product. Easy to use. The sound turns off occasionally which seems to be a glitch with ipads
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
J
Verified Purchase
Jay Blaustein
Massapequa, US
★★★★★ 5
Fast shipping
Color: Blue, Memory Storage Capacity: 128 GB, Set name: Wi-Fi + Cellular
Item as described, mint condition, works great came with charger block and fast shipping only issue I had is with shipping carrier. FEDEX stinks showed arrival as Monday, was delivered 1/21 10:45 am yet their system showed package was in Louisville, Tn at this time later in the evening I checked again showed delivered. No package by my door from FedEx had to go to their website to find picture where the left it. Was found at entrance to my complex on top of mailboxes where anyone could have of taken it…
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Reviewed in the United States on January 22, 2026
L
Verified Purchase
LD
New York, US
★★★★★ 5
Very satisfied with purchase!
Color: Silver, Memory Storage Capacity: 256 GB, Set name: Wi-Fi + Cellular
Everything worked as advertised. Nice 11rh generation iPAD.
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Reviewed in the United States on April 30, 2026
M
Verified Purchase
mmanderson8
Grantham, US
★★★★★ 5
Exactly as described
Color: Red2
Very sturdy and definitely protects my iPad. Great buy even has a part of the pen. Fits perfectly no issues putting it on and it has layers to ensure that your iPad is protected. Color is exactly as pictured. Easy to use and charges fine with the case on
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Reviewed in the United States on March 18, 2026
N
Verified Purchase
NY
Lowell, US
★★★★★ 5
Not broken yet.
Color: Light Purple
I bought this for my daughter’s tablet and she has put it through the test. It has been dropped multiple times and the tablets still good. It was easy to put on, looks good, and does the job.
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Reviewed in the United States on April 26, 2026

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