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JL Audio XD1000/5v2

5-channel car amplifier — 75 watts x 4 at 4 ohms + 600 watts RMS x 1 at 2 ohms

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  • JL Audio XD1000/5v2

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  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

  • JL Audio XD1000/5v2

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Our take on the JL Audio XD1000/5v2

by Buck Pomerantz
JL Audio

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

This one amp will power your entire system

JL Audio XD1000/5v2

XD1000/5v2 connection and control panels

JL Audio's XD1000/5v2 amp packs a wallop far beyond what you'd expect from something so small. This compact amp plays your music with true fidelity and impressive impact, without straining your car's electrical system. A cast alloy heatsink and an advanced cooling system keep this amp at optimal temperature, eliminating thermal shut-downs so your music keeps going strong without interruption.

This 5-channel amp can power your vehicle's entire system, delivering 75 watts RMS to each of your front and rear speakers, while powering a sub with up to 600 watts. You can also switch to 3-channel mode, and power a pair of high-performance speakers with 200 watts each, while still driving a sub with 600 watts.

High- and low-pass filters give you intimate control over the character of your sound. "Differential-balanced" inputs keep the signals clear of outside noise, and allow you to connect this amp to just about any in-dash stereo, even a factory radio with no preamp outputs. An optional wired remote lets you tweak the level of the subwoofer or the whole system from your front seat.

JL Audio XD1000/8v2

XD1000/5v2 control panel

See more info on this item

Highlights:

  • 5-channel car amplifer
  • 75 watts RMS x 4 + 400 watts RMS x 1 (at 4 ohms)
  • 100 watts RMS x 4 + 600 watts RMS x 1 (at 2 ohms)
  • 200 watts RMS x 2 bridged at 4 ohms + 600 watts RMS x 1 at 2 ohms
  • variable high-pass filter (50-5000 Hz, 12 dB/octave) on ch 1 & 2
  • variable high-pass or bandpass filter (50-500 Hz, 12 dB/octave) on ch 3 & 4
  • variable low-pass filter (50-500 Hz, 12 or 24 dB/octave) on sub ch
  • optional wired remote for level control (sub channel only or all channels)
More details
  • Class D amplifier design with NextD™ switching amp technology
  • differential-balanced inputs eliminate noise coming from your vehicle's electrical system
  • speaker- and preamp-level inputs (speaker-level input requires an optional adapter)
  • auto turn-on via DC offset or signal sensing
  • Advanced Rollback Protection System prevents thermal shut-down
  • 4-gauge power and ground leads and a 80-amp fuse recommended — wiring and hardware not included with amplifier
  • no onboard fuses — when installing multiple amps in a system, an additional 80-amp in-line fuse between the distribution block and the amplifier is recommended
  • 14-3/4"W x 2"H x 7-1/8"D
  • warranty: 2 years
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Performance
RMS Power Output (Watts x Channels)
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75 x 4
400 x 1
Peak Power Output (Watts x Channels)
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N/A
Power at 2 Ohms (Watts x Channels)
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100 x 4
Bridged Power (Watts x Channels)
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200 x 2
Minimum Impedance Bridged
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4
Minimum Impedance Unbridged
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2
Best Frequency Response
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10-22k Hz
THD at Rated RMS Power
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1%
Signal to Noise Ratio
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104 dB
Input Voltage
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14.4v
Features
Amplifier Class
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D
Low-Pass Crossover Frequency
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50-500 Hz
Low-Pass Slope (dB/octave)
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12 or 24 dB/octave
High-Pass Crossover Frequency
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50-5000 Hz
High-Pass Slope (dB/octave)
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12 dB/octave
Bass Boost
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No
Bass Boost Frequency
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N/A
Fan Cooled
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No
Fuse Rating
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80
Speaker Level Inputs
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RCA (adapter req)
Preamp Outputs
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No
Width (inches)
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14-3/4
Height (inches)
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2
Depth (inches)
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7-1/8
Parts Warranty
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2 Years
Labor Warranty
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2 Years
Product Research
What's in the box?

Download owner's manual

  • 5-Channel Class-D amplifier
  • 2.5mm Allen wrench
  • JL Audio emblem
  • Owner's manual (English/ Spanish/ German/ French)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Controls
Connections

Features

5-Channel Amplifier: The JL Audio XD1000/5v2 is a five-channel, Class-D amplifier utilizing NexD ultra-high speed switching technology to deliver outstanding fidelity and efficiency. Four of the five channels are full range; two stereo pair, channels 1&2 and channels 3&4. The fifth channel is designed to power a subwoofer. The amp can be operated with a wide variety of source units and system configurations.

Specifications: The XD1000/5v2 is rated at 75 watts RMS x 4 plus 400 watts RMS x 1 at 14.4 volts, measured into 4Ω from 20 Hz to 20 kHz (for the full range channels) with no more than 1% THD+N. The four channel section is bridgeable to 200 watts RMS x 2-channels at 14.4 volts, measured into 4Ω from 20 Hz to 20 kHz with no more than 1% THD+N. Each pair of full range channels (1&2 and 3&4) is independently bridgeable, so the amp can be used in 5-channel, 4-channel, and 3-channel mode. The 2Ω output is 100 watts RMS x 4 plus 600 watts RMS x 1 at 14.4 volts, measured from 20 Hz to 20 kHz (for the full range channels) with no more than 1% THD+N. The subwoofer output is also given at 3Ω; 500 watts RMS x 1 at 14.4 volts with no more than 1% THD+N. The Signal to Noise ratio is 104 dB for the full range channels and 100 dB for the subwoofer channel at rated power, and 84 dB for the full range channels and 80 dB for the subwoofer channel at 1 watt.

NexD Class D Technology: NexD is a switching amplifier design that combines exceptional audio quality with excellent efficiency and less complexity. This results in an affordable compact amplifier with exceptional audio quality and total efficiency.

Advanced Rollback Protection: The XD-Series amplifiers employ advanced thermal and low-impedance protection to virtually eliminate annoying amplifier shut-down events. Should any XD-Series amplifier overheat, its intelligent, unregulated power supply reacts by limiting available peak voltage until the amplifier returns to a safe temperature range. Likewise, if an impedance lower than optimal for the amplifier is present at the outputs, the XD amplifier will roll back peak voltage to protect itself without shutting down.

Differential-Balanced Inputs: The amplifier features differential-balanced input architecture to effectively control noise and ensure compatibility with a wide variety of source units, including many OEM systems. Without resorting to line output converters, you can directly connect most OEM source units to the JL Audio amplifier without creating any noise or compatibility issues. Unlike conventional single-ended inputs, the differential-balanced design does not connect one side of the audio signal to chassis ground. This eliminates any voltage sensitivity between one input terminal and ground and greatly reduces the incidence of alternator whine in a typical car audio installation.

Note: You will need up to three speaker wire to RCA adaptors (136XDCLR2S, sold separately) to connect this amplifier to your headunit's speaker-level outputs.

Protection Circuitry with Status LED: There is a single multi-color LED on the top panel to indicate the amplifier's operating status.

  • Flashing Green: amplifier is powering up and audio output is muted
  • Constant Green: amplifier is turned on and operating normally
  • Constant Red: indicates the amplifier has exceeded its safe operating temperature, putting the amplifier into a self-protection mode which reduces the power output; the LED will return to green and the amplifier will resume normal, full-power operation when the heat sink temperature drops back to a safe level
  • Constant Amber (Yellow): indicates an over-current condition has occurred, accompanied by a muting of the affected amplifier channels (over-current can be caused by speaker impedance lower than recommended or a short-circuit in the speaker wiring)
  • LED Off: the only condition that will shut down an undamaged XD1000/5v2 completely is the battery voltage or remote turn-on voltage dropping below 10-volts

Cooling System: The outer shell of the JL Audio amplifier is designed to remove heat from the amplifier circuitry. For optimum cooling performance, this outer shell should be exposed to as large a volume of air as possible. Enclosing the amplifier in a small, poorly ventilated chamber can lead to excessive heat build-up and degraded performance.

Controls

Control Panel Cover: The XD1000/5v2 features a Control Panel Security Cover which protects and hides the amplifier's controls. When installed, the cover ensures that the amplifier's settings are not accidentally changed, while creating a clean aesthetic look for the amplifier and your installation. The cover is installed at the factory and must be temporarily removed for access the amplifier's controls. The security cover is secured by two 2.5mm Allen-head machine screws.

Gain Setting: The XD Series amplifiers have independent gain (input sensitivity) controls for each pair of output channels; in this case, 1&2, 3&4, and subwoofer. Using JL Audio's guided set up requires a digital AC voltmeter and a test CD (item number 503CD104, sold separately) with a sine-wave test-tone recorded at 0 dB reference level in the frequency range to be amplified for that set of channels (50 Hz for subwoofer channels, 1 kHz for a midrange application).

Input Voltage: The input voltage range is broken into two sub-ranges (the sub-range is set simultaneously for all inputs, but the three sections have independent gain controls to set the specific voltage):

  • Low: typically used with preamp level signals; variable from 200mV to 2V
  • High: used with some high output preamps and most speaker level signals; variable from 800mV to 8V

Remote Level Mode: When the optional HD-RLC wired remote is added, use this switch to set which channels are affected:

  • All: all channels are adjusted simultaneously
  • Sub: only the subwoofer channel is affected

Turn-On Mode: There are three options for turning the amp on, selected using the Turn-On Mode switch:

  • Remote: The amp turns on when +12 volts is applied to the remote terminal.
  • Offset: The amp turns on when a DC offset is detected on the channel 1 inputs (from a speaker-level source).
  • Signal: The amp turns on when a full-range audio signal is detected on the channel 1 input (from a speaker-level source).
Input Mode: Choose which inputs are used with this three position switch:
  • 6 CH: each of the six inputs feeds its corresponding output
  • 4 CH: inputs 1-4 feed output channels 1-4 respectively, and the subwoofer input is the sum of all four
  • 2 CH: input 1 feeds channels 1&3; input 2 feeds channels 2&4, the subwoofer input is the sum of both

Crossovers: Each section of the amplifier has an independent crossover:

  • Channels 1&2:
    • HP Filter Mode: three position switch:
      • Off: full range
      • x1: high-pass; crossover point is as labeled on the frequency dial
      • x10: high-pass; the crossover point is multiplied by 10, making the range 500 Hz to 5 kHz
    • Filter Frequency: rotary control; set the crossover point from 50 to 500 Hz (with the filter mode switch in the x1 position) or 500 Hz to 5 kHz (with the filter mode switch in the x10 position)
  • Channels 3&4:
    • Filter Mode: three position switch:
      • Off: full range
      • BP: band-pass; high-pass frequency set using the channel 3&4 filter frequency dial, low-pass frequency taken from the setting channel 1&2 filter frequency dial
      • HP: high-pass; frequency set using the filter frequency dial
    • Filter Frequency: rotary control; set the high-pass crossover point from 50 to 500 Hz
  • Subwoofer:
    • Filter Mode: three position switch:
      • Off: the crossover is bypassed; assuming a full range signal is input, the output will be the full range of the subwoofer amp section, which is 10 Hz to 1 kHz
      • 12 dB: the low-pass crossover slope is 12 dB/octave
      • 24 dB: the low-pass crossover slope is 24 dB/octave
    • Filter Frequency: rotary control; set the crossover point from 50 to 500 Hz

Connections

Power/Ground/Turn-On Terminals: The amplifier features screw clamp terminals for the power, ground, and remote turn-on connections.

  • Power and Ground: designed to accept 4 AWG wire; a A 2.5mm Allen wrench is supplied for making connections
  • Remote Turn-On: designed to accept 18 to 8 AWG wire; the same 2.5mm Allen wrench is used for making the connection

Note: The Amplifier is not equipped with a fuse. An external 80-amp fuse (not included) must be installed on the power wire. If a wiring kit is used which includes a fuse with a value other than 80-amps, the original should be replaced with an 80-amp fuse.

Speaker Output Terminals: The XD1000/5v2's screw clamp speaker terminals will accept 16 to 8 AWG speaker wire. The included 2.5mm Allen wrench is used for making connections.

Note: The two subwoofer outputs are internally wired in parallel, making it easy to connect two subwoofers (minimum impedance 4Ω each when using both).

Preamp Inputs: The amplifier has three pair of differential-balanced stereo RCA inputs; each pair has a dedicated gain control designed to match the input sensitivity of the amp to the specific signal source feeding it. In addition to preamp level signals, the RCA inputs are also used with speaker level signals (136XDCLR2S required and sold separately).

Remote Level Control: The amplifier features an RJ-14 telephone jack for adding an optional wired remote level control. With the addition of the optional wired remote (item number 136HDRLC, sold separately), you can control the volume of all channels of the XD1000/5v2, or just the subwoofer channel, from the front of your vehicle. This is useful for subwoofer level control or even as a master volume control for your system. If desired, multiple XD amplifiers can be controlled from a single HD-RLC controller using a simple phone line splitter and multiple phone cables (all sold separately).

Note: All inputs and outputs are located on one side of the amplifier to make installation simple and neat.

 
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