JL Audio JX1000/1D

1000W RMS JX Series Monoblock Class D Subwoofer Amplifier

JL Audio
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• Peak: 500W x 1 @ 4 ohms, 750W x 1 @ 3 ohms, 1000W x 1 @ 2 ohms
• Unregulated PWM switching type power supply
• Class D Circuitry
• Bass Boost: 0-12 dB
• Speaker-level (high-level) inputs with included harness
• Dimensions: 7.68"W x 10.94"L x 2.09"H

Learn more about the jx10001d

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This item has been discontinued

But you may be interested in the newest model that's available.

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JL Audio RD1000/1

OUR PRICE: $599.99

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JL Audio

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JL Audio JX1000/1D

JL Audio JX1000/1D - JX Series Monoblock Class D Subwoofer Amplifier

The JL Audio JX Series of amplifiers are designed with a specific purpose; to deliver clean, rock-solid performance and reliability at an affordable price. Unlike gimmicky price-conscious amplifiers, JL Audio employs specified oversized output transistors and rugged MOSFET power supplies to unsure proper current, thermal capacity and better overall performance. In addition, the JX1000/1D includes flexible signal processing capabilities with a fully variable 12 dB/octave crossover filter, pass-through preamp outputs and a Bass EQ. With the optional JL Audio RBC-1 Remote Level Control (sold separately), you can control the subwoofer volume from the front of the vehicle.

JX monoblock subwoofer amplifiers are specifically designed to drive subwoofers. Their frequency response is limited to the range below 150 Hz., making them unsuitable for driving midrange speakers or tweeters.

Integration Flexibility

Integration Flexibility

For those systems that do not offer a preamp level signal option, you can connect speaker level signals directly to the "Hi-Level Inputs" connector using the supplied connector and wire harness. Simply splice the appropriate left/right and positive/negative wires to the included harness and plug the harness into the "Hi-Level Inputs" connector on the amplifier. The JX monoblock will attenuate the high-level signal to make it compatible with its input stage. Alternatively, a traditional left/ right pair of RCA type jacks is used for preamp level (low-level) signals. This is the preferred connection method whenever available.

Low-Pass Active Filter

Low-Pass Active Filter

The JX monoblock features a 12 dB/octave low-pass active filter for its internal channel. This feature is designed to attenuate frequencies above its filter frequency, so that the system's subwoofer(s) do not reproduce any audible and often harmful mid-range frequencies. The low-pass filter is fully variable between 50 Hz and 200 Hz via the "Filter Frequency" control knob. 80 Hz is a good starting point for system tuning, but its also advisable to match the crossover point with that of your satellite speakers' high-pass filter - this ensures that your system is properly distributing the frequencies to the appropriate medium.

General Features:

  • JX Series Monoblock Class D Subwoofer Amplifier
  • RMS Power Rating (14.4V):
    • 4 ohms: 500 watts x 1 chan.
    • 3 ohms: 750 watts x 1 chan.
    • 2 ohms: 1000 watts x 1 chan.
  • RMS Power Rating (12.5V):
    • 4 ohms: 500 watts x 1 chan.
    • 3 ohms: 700 watts x 1 chan.
    • 2 ohms: 900 watts x 1 chan.
  • Unregulated PWM switching type power supply
  • LED power (green) and protect (red) indicators
  • Soft start turn-on prevent clicking and popping when system turns on
  • Speaker-level (high-level) inputs with included harness
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heatsink for effective heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Dual speaker terminals simplify the hookup of multiple speakers
  • Remote bass level input (JL Audio RBC-1 sold separately)
  • Input sensitivity:
    • Low level input: 200mV - 4V
    • High level input: 2.0mV - 10.0V
  • Variable Bass Boost: 0 to +12 dB bass boost centered at 45 Hz
  • Variable low-pass filter: 50 - 200 Hz, 12 dB/octave
  • Frequency Response: 20 - 150 Hz ± 1 dB
  • Total Harmonic Distortion (THD): 1%
  • Signal to Noise Ratio: >75 dB
  • Damping Factor @ 4 ohms: >1000 @ 4 ohms
  • Fuse Rating: 80A x 1 inline (not supplied)
  • 4 gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier.
  • Weight: 7.0 lb
  • Dimensions: 7.68"W x 10.94"L x 2.09"H
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Check out the JL Audio JX1000/1D Owner's Manual

Product history:

JL Audio RD1000/1 thumbnail
(newest, current model)
JL Audio JX1000/1D thumbnail
(previous model, replaced by JL Audio RD1000/1)

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 - Subwoofer Channel
RMS Power @ 4 ohms
500 watts x 1 channel
RMS Power @ 2 ohms
1000 watts x 1 channel
RMS Power @ .5 ohm
Power Specifications - Subwoofer Channel
Peak Power @ .5 ohm
Amplifier Specifications
JX Series
Marine Certified
Amplifier Class
Number of Channels
1 - Mono
Total RMS Power Output
1000 watts
Maximum Input Gauge Size
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
Not Bridgeable
Frequency Response
THD at Rated RMS Power
Speaker Level Inputs
Yes - with included adapter
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
50 - 200 Hz
Signal-to-Noise Ratio
>75 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
Optional (Accessory required and sold separately)
Fan Cooled
Fuse Rating
80A X 1 In-Line Fuse Recommended
Sonic Certified Amplifier
Not Tested
Low-Level Input Sensitivity
High-Level Input Sensitivity
What is in the box?
Other Accessory #6
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

Item Details


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Customer Ratings & Reviews

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do u recommend to buy this amp

hey I have the same speakers as u 2 12w3v3 4 ohms does this amp give a good power to these speakers ?

By jose on September 5, 2012


found this helpful.

Amazing amp from an amazing brand

I got this JL Audio JX1000/1D amp to replace my Kenwood KAC-9105D and I know the price is a little steep, but I know that this amp won't crap out on me like my Kenwood one did. I don't have any problems with the JL amp overheating or anything and it does exactly what it's supposed to.

By Alex on November 29, 2012


found this helpful.

Great product

Excellent product, great customer service, running jl 12" 500rms sub, sounds great

By Loc on August 28, 2012


found this helpful.

Nice Buy

Very good sound. Very easy to use and install. Fast shipping. Added what i was looking for to my 2 JL 12 in. w3s.

By MyR on August 27, 2012


found this helpful.

Crazy Amount Of Power

I have 2 JL Audio 12W3v3 4 ohms(500 RMS a piece) hooked up to this amp. I have the gain all the way down, and have never touched the bass boost. My subwoofers flex extremely hard even with the gain all the way down, which is why I am scared to test the limits of my W3's with this amp by turning up the sensitivity. I have also hooked up my friends Alpine Type R to this amp and had to run to shut the music off because the sub could not nearly handle the power of this amp despite the amp being turned down so low. This amp is power hungry so make sure your subs can handle it!

By Jason on May 17, 2012


found this helpful.

nice amp

This amp can make any subs sound clean and bump hard. Pros are that it's really durable and it can get down and dirty and ive never had it over heat and shut off atfer hours of use. Cons, none.

By freddie on January 2, 2012


found this helpful.

Plenty of Clean Power!

The JX1000/!D is another great JL Audio product that puts out plenty of clean power! The amp runs cool and continues to drive subs very well. With the price of the amp, the only addition to the amplifier that JL Audio should include is a RBC-1 control. That control would optimize all types of music!

By Shaboom on September 18, 2014


found this helpful.

Great Sub Maybe

I have never seen a bad review of this sub. I purchased this sub because of good reviews and the JL brand name. Nobody has mentioned a huge downside of this amp. There is no subsonic filter.

I am trying to put together a high end system and I am feeling uneasy about my purchase. I think I hear distortion because of subsonic noise. I would have chosen another option because this.

By JP on July 19, 2013


found this helpful.

Great amp

Had this amp for six months now. Runs cool to the touch with no issues and good power.

By Rob on March 14, 2012


found this helpful.

great value!

For the price and the size of the amp u can't go wrong..its real small and it has a lot of power..i'll will give u clear and clean bass..I got 2 JL W5 flat spks on my 08 1500 Silverado crew cab and it sounds real good..

By boogie on March 10, 2011


found this helpful.


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