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JL Audio Refurbished M400/4:4 Ch. Class D Full-Range Marine Amplifier 400 W

(2 reviews) Write a Review
SKU:
M400/4-K
UPC:
699440982719
Condition:
Refurbished
Weight:
5.50 LBS
Shipping:
Calculated at Checkout
On Sale
  • JL Audio Refurbished M400/4:4 Ch. Class D Full-Range Marine Amplifier 400 W
  • JL Audio Refurbished M400/4:4 Ch. Class D Full-Range Marine Amplifier 400 W
  • JL Audio Refurbished M400/4:4 Ch. Class D Full-Range Marine Amplifier 400 W
MSRP: $469.99
Now: $389.99
Was: $390.99
— You save $80.00

Out Of Stock

Out Of Stock

Description

Refurbished JL Audio M400/4

This amplifier has been factory refurbished by JL Audio and comes with a 90-Day Warranty.

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.

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.

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

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 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
Pass-Through Preamp Output None
Source Channel Selection for PreOuts N/A

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

Refurbished FAQ

Refurbished Frequently Asked Questions

  • What does refurbished mean? Refurbished products may be unused customer returns that are essentially "new" items, or they may be defective products that were returned under warranty, and resold by the manufacturer after repairing the defects and ensuring proper function.
  • What is the warranty? All of our manufacturer refurbished items come with a 90-day warranty. Compared to the new products we carry generally having a 1-year or longer warranty. (JL Audio Amps are 2-years, and all of Wet Sounds carries a 2-year warranty when new)
  • What's it look like? A lot of the manufacturer refurbished products we sell generally look very good, and sometimes you can't even tell. However, these products can have some wear and tare on them, and we generally rate them an 8/10 cosmetically, and perfect 10/10 functionally.
  • What was wrong with it? We aren't told what is wrong with each and every product. Like stated above, they could have just been a return or they may have had an issue. Regardless, they are all combed over by their respective manufacturer to function as new before being shipped to us.
  • Have more questions? Call us, send us a chat, or an email. We'll be able to answer any additional questions you may have.
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Additional Information

Manufacture SKU #:
98271
Number Of Channels:
4 Channel
UPC:
699440982719
RMS Power In Watts:
251-500 Watts
Bundle:
No
Condition:
REFURBISHED
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2 Reviews

  • 5
    So far, so good.

    Posted by William Schumpert on 16th Jul 2020

    Came in nice box. Pretty straight forward to install. Sounds great! Gets warm, but not hot. Have only run it for about 4 to 5 hours.

  • 5
    JL AUDIO 400/4 AMP

    Posted by Ed on 7th Apr 2019

    Amazing marine amp. I have it powering two JL M880’s and it delivers a punch to these speakers!

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