Name: JL Audio XD400/4
Brand: JL Audio
SKU: xd4004
Price: 399.95 USD
Availability: Discontinued
Rating: 4.9286 (14 reviews)

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Product videos

Product highlights

• 100W x 4-Chan @ 2 Ohm
• NexD Ultra-High Speed Topology
• Preamp RCA Outputs
• Variable High/Low-Pass Filter
• 3-Way System Protection Circuitry
• Remote Bass Input

Learn more about the xd4004

Product Highlights

• 100W x 4-Chan @ 2 Ohm
• NexD Ultra-High Speed Topology
• Preamp RCA Outputs
• Variable High/Low-Pass Filter
• 3-Way System Protection Circuitry
• Remote Bass Input

Description

Authorized dealer

Quality, Efficiency, and Convenience with JL Audio XD Amplifiers

JL Audio's XD400/4 4-channel XD series amplifier encompasses high quality at an affordable price. When JL Audio sets out to make an affordable amplifier the one thing that you can bet they will not do is compromise on quality and performance. XD amplifiers feature NexD Class D Technology, that reduces distortion and increases efficiency. The use of an Advanced Rollback Protection system will allow the XD amplifiers to maintain both thermal and low-impedance protection by either limiting available peak voltage when overheating or rolling back peak voltage when low impedance is presented at the outputs. In order to minimize engine whine or alternator noise, XD amplifiers feature differential-balanced inputs that eliminate voltage sensitivity between one input terminal and ground thus reducing the occurrence of interference. In addition to all these great technologies, XD amplifiers also feature a relatively small chassis, making them easily mountable in any vehicle without extraneous hassle. When looking for a space-saving amplifier loaded with the latest technologies and unsurpassed quality and performance, then look no further than JL Audio's XD series car amplifiers.

General Features

XD Series 4-Channel Class D Car Amplifier
RMS Power Rating (14.4V):

4 ohm: 75 watts x 4 chan.
2 ohm: 100 watts x 4 chan.
Bridged, 8 ohm: 150 watts x 2 chan.
Bridged, 4 ohm: 200 watts x 2 chan.

RMS Power Rating (12.5V):

4 ohm: 60 watts x 4 chan.
2 ohm: 90 watts x 4 chan.
Bridged, 8 ohm: 120 watts x 2 chan.
Bridged, 4 ohm: 180 watts x 2 chan.

Unregulated MOSFET switching type power supply
NexD Ultra-High Speed Class D topology
Wired JL Audio HD-RLC remote level control sold separately
LED power (green) and protect (red/yellow) indicators
Independent input sensitivity controls
State-of-the-art microelectronic components
4/3/2 channel operation
Advanced Thermal Rollback System completely eliminates annoying thermal shut-down events
Studio-grade signal processing with fully variable crossover filters
Extruded aluminum alloy system setting security cover
Total amplifier efficiencies exceeding 80%
Noise-killing, highly flexible differential-balanced inputs
Preamp RCA outputs to daisy chain multiple amps
3-Way System Protection circuitry (thermal, overload, and speaker short protection)
Heavy duty compact unitary cast alloy heat sink for extreme heat dissipation
Silver-plated RCA level inputs
Silver-plated screw terminals
Input sensitivity:
- Level: 100mV-4V
Variable high-pass filter (50-500 Hz, 12 dB/octave Butterworth)
Variable low-pass filter (50-500 Hz, 12 dB/octave Butterworth)
Damping factor: >150 @ 4 ohm per chan./ 50Hz
Frequency response: 12-22,000 Hz
Dimensions: 8-1/2"L x 7-1/16"W x 2-1/16"H
4-gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
2 Year Manufacturer's Warranty

Product history:

	JL Audio XDM400/4 (newest, current model)
	JL Audio XD400/4v2 (previous model, replaced by JL Audio XDM400/4)
	JL Audio XD400/4 (previous model, replaced by JL Audio XD400/4v2)

This item is currently not eligible for our low price guarantee. This may be due to supply constraints, manufacturer restrictions, or another reason. We're always here to help you get the best price possible so give us a call or email today. Our experts will do their best to build the system that works for you within the rules.

Specifications & Details

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

75 watts x 4 channel

RMS Power @ 2 ohms

100 watts x 4 channel

Bridged RMS Power

200 watts x 2 channel

Amplifier Specifications

Series

XD Series

Amplifier Class

Number of Channels

4-Channel

Total RMS Power Output

400 watts

Maximum Input Gauge Size

4 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

4 ohms

THD at Rated RMS Power

1.0%

Speaker Level Inputs

Preamp Outputs

1 pair

Built-in Crossover

Low-Pass (LP)
High-Pass (HP)

High-Pass Crossover Frequency

50 - 500 Hz

Low-Pass Crossover Frequency

50 - 500 Hz

Signal-to-Noise Ratio

>104 dB

Remote bass/level controller

Optional (Accessory required and sold separately)

JL Audio HD-RLC

Fuse Rating

40A x 1

Warranty and Return Policy

Parts Warranty Duration

2 years

Labor Warranty Duration

2 years

Warranty Provider

Manufacturer

Customer Ratings & Reviews

Overall rating distribution

5 star		93%
4 star		7%
3 star		0%
2 star		0%
1 star		0%

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Show only Verified Purchases

By feature average rating

Durability		5
Value		4.4
Features		4.9
Design		5
Usability		5

Customer Reviews

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very nice amp sound clean

Very good amp small and sounds clean

By jose on May 5, 2014

49 found this helpful

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This Thing Rules!

This amp is compact, powerful, stays cool, and is very, very efficient. Hook any set of speakers up to this and it will drive them hard with beautiful, clean sound. This unit may be expensive, but you get what you pay for!

By Jared on April 21, 2013

46 found this helpful

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Blessing in disquise

I hooked this unit up to my 6.5" components in a 4 channel / 4ohm configuration and was not disappointed in any way. Spend the extra $120 and buy this amp over the competitors. Money well spent in my opinion. I first bought a RF Prime 400w D-class unit that fried in a matter of minutes at 3/4 volume. Thank god it failed because I bought this one instead. Blessing in disquise!

Pros: Sleek look, easy to install, crossover dial detents (awesome!), small size w/big sound.

Cons: Absolutly none that I can think of.

By Ben on May 11, 2012

46 found this helpful

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Amazing Amp

I am impressed with the power of this amp, I had two amplifiers rockford fosgate for focal's access and Poliglass, also for a couple of subwoofers jl Audio 12W1, and really did not know what kind of brands buy it. I decided to buy this amp but I was afraid if that brand was I'm looking for. I have a surprise, it's pretty good and quite practical, and has a power that leave me very satisfied

By Max on April 23, 2014

45 found this helpful

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JL AUDIO AMP!

This amp performs great. I have it connected to 2 6x9; 2 6 1/4; and two tweeters which pumps out awesome result with clarity on the vocals and the music tracks. I'm thinking of upgrading to the 600 series because I want to add a woofer for more drop in the bass.

By ROAD GLIDE on August 30, 2012

45 found this helpful

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Awesome. Perfectly replaces OEM JEEP JK AMP IN DASH

Perfect !

By michael on February 9, 2011

46 found this helpful

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SQ is great!

I had this amp installed to power my front stage of hertz hsk 165 6.5 in component set speakers and the sound is incredible. Bridged the amp to power just these speakers and it worked out great. Compliments my pair of w6's perfectly. The small design fits perfectly under the drivers seat of my Jeep Grand Cherokee with no problems in the first few weeks. I have a kicker ix 500.4 but do prefer this jl amp.

By mark on March 25, 2015

42 found this helpful

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love it

i have been experimenting with different amps over the past few years and i think this is the one. the small size and efficiency are great and the output is exactly what i have been looking for i have tried lower and higher power this is a good match for me i have no complaints

By thomas on October 18, 2013

41 found this helpful

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AMAZING Amp!

Upgraded from an MB Quart 4.80 to this amp, the difference is night and day. Twice the price DOES mean twice the amp in this case! Aside from the power, and the sound quality achievable with this amp, the build quality is second to none. It has a good bit of weight for an amp as small as it is, and the gain & filter knobs are very well made and easy to adjust. Powering Focal access series 6.5" components in the front with Rockford Power series 3-way 6x9's in the back and i couldnt be happier!

By Cody on May 19, 2013

41 found this helpful

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Awesome

This is an awesome affordable amp. The ouput of this amp is unbelievable. I compared this to the Alpine PDX4.1 and let me tell you this thing is worth the money and out performs the others. Great amp JL Audio. You out did yourself this time.

By Reggie on April 5, 2011

42 found this helpful

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See all 14 reviews

Add-ons

Belva BAK44

Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

(61)

$49.99

List price $79.99

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JL Audio XD400/4

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This item has been discontinued

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