background image

12

 

JL Audio

 

 

 

 

13

aPPendix b:
J2-1000.1 specifications

 

general specifications:

Recommended Fuse Value:

  100A

Recommended Fuse Type:

 ANL at battery,  3x 35A ATC 

fuses on amplifier chassis.

input section:

Low-Level Input:

 Single-ended with RCA jacks

Low-Level Input Range:

 200mV - 6.5V RMS

High-Level Input: 

Single-ended with molded connector

High-Level Input Range: 

630mV - 20.5V RMS

amplifier section:

Amplifier Topology:

 Class D Monaural  

Power Supply: 

PWM switching type, unregulated

Rated Power with less than 1% THD (14.4V supply):

 

400W RMS x 1 @ 4Ω
500W RMS x 1 @ 3Ω
700W RMS x 1 @ 2Ω
900W RMS x 1 @ 1.5Ω
1000W RMS x 1 @ 1Ω

Frequency Response:

 10 - 160 Hz (+/– 0.5dB)

Crossover section:

Low-Pass Filter

: 12 dB/octave with continuously variable 

cutoff frequency selection from 40 - 300 Hz. Non-defeatable.

Preamp outputs:

2-Channel, pass-through with unity gain, RCA-type jacks.

bass boost

:

Single-band with 45 Hz center frequency, adjustable from  
0 to +12dB.

remote level Control

:

Via included, wired remote control knob. Full mute to  
0 dB range.

dimensions (lxwxH): 

14.60" x 9.60" x 2.15" (371 mm x 244 mm x 55 mm)

aPPendix a:
input sensitivity level setting

Following the directions below will allow the 

installer to adjust the input sensitivity of each 
amplifier channel pair simply and easily in just a 
few minutes using equipment which is commonly 
available in installation bays.

necessary equipment

• Digital AC Voltmeter
•  CD 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). Do not use attenuated 

test tones (-10 dB, -20 dB, etc.).

the nine-step Procedure

 

1)

  Disconnect the speaker(s) from the 

 

amplifier’s speaker output connectors.

2)

  Turn off all processing (bass/treble, loudness, 

EQ, etc.) on the source unit, processors (if used) 
and amplifier. Set fader control to center position 
and subwoofer level control to 3/4 of maximum. 
If connected, set the amplifier’s Remote Bass 
Control at maximum (full clockwise).

3)

  Turn the 

“Input Sens.”

 control all the  

way down.

4)

  Set the source unit volume to 3/4 of full 

volume. This will allow for reasonable gain 
overlap with moderate clipping at full volume.

5)  

Using the chart on this page, determine the target 
voltage for input sensitivity adjustment according 
to the nominal impedance of the speaker system 
connected to the amplifier outputs.

6)

  Verify that you have disconnected the speakers 

before proceeding. Play a track with an 

appropriate sine wave (within the frequency 
range to be amplified) at 3/4 source unit volume.

7)

  Connect the AC voltmeter to the speaker output 

connectors of the amplifier. Make sure you test 

the voltage at the correct connectors (+ and –).

8)

  Increase the 

“Input Sens.”

 control until the 

target voltage is observed with the voltmeter.

9)

  Once you have adjusted the amplifier to 

its maximum low-distortion output level, 
reconnect the speaker(s). The 

“Input Sens.”

 

controls can now be adjusted downward if the 
amplifier requires attenuation to achieve the 
desired system balance. 

IMPORTANT

!

Do not increase any 

Input Sens.

 setting for 

any amplifier channel or channel pair in the 

system beyond the maximum level established 

during this procedure. Doing so will result in 

audible distortion and possible speaker damage.

It will be necessary to re-adjust the  

“Input Sens.”

 for the affected channels if any 

equalizer boost is activated after setting the  

“Input Sens.”

 with this procedure. This applies  

to any EQ boost circuit, including source unit 
tone controls or EQ circuits. EQ cuts will not 
require re-adjustment. 

 

nom. impedance

target aC Voltage

40 V

39 V

38 V

1.5Ω

37 V

32 V

Due to ongoing product development, all specifications are subject to 
change without notice.

Summary of Contents for J21000.1

Page 1: ...llation equipment to ensure optimum performance from this product Should you decide to install the amplifier yourself please take the time to read this manual thoroughly so as to familiarize yourself with its installation requirements and setup procedures If you have any questions regarding the instructions in this manual or any aspect of your amplifier s operation please contact your authorized J...

Page 2: ...n any other area that will expose the amplifier circuitry to the elements Protect Your Hearing We value you as a long term customer For that reason we urge you to practice restraint in the operation of this product so as not to damage your hearing and that of others in your vehicle Studies have shown that continuous exposure to high sound pressure levels can lead to permanent irreparable hearing l...

Page 3: ... 35A Remote VDC Product Description The JL Audio J2 1000 1 is a monoblock subwoofer amplifier utilizing highly efficient Class D technology Its frequency response is limited to the range below 160 Hz It is not designed for driving midrange speakers or tweeters Every aspect of its operation has been optimized for low frequency amplification For detailed specifications please refer to Appendix B pag...

Page 4: ...nd off using a conventional 12V remote turn on lead typically controlled by the source unit s remote turn on output Made in China Speaker Output Mono FUSES Ground 35A 35A 35A Remote VDC The amplifier will turn on when 12V is present at its Remote input and turn off when 12V is switched off If a source unit does not have a dedicated remote turn on output the amplifier s turn on lead can be connecte...

Page 5: ...tection To connect the speaker wires to the amplifier strip 1 2 inch 12 mm of insulation from each speaker wire and insert them into their appropriate connector observing correct polarity Then tighten each connector using a Phillips screwdriver IMPORTANT Do NOT attempt to bridge two J2 1000 1 s together or combine their output to a single load in any manner Doing so will damage the amplifier s IMP...

Page 6: ...r If you have any questions about the installation or setup of the amplifier not covered in this manual please contact your dealer or technical support JL Audio Technical Support 954 443 1100 9 00 AM 5 30 PM Eastern Time Zone Monday Friday Status Indicator Lights Protection Circuitry There are two status indicator lights on the top of the amplifier These are as follows 1 Power Green lights to indi...

Page 7: ...ble loudness EQ etc on the source unit processors if used and amplifier Set fader control to center position and subwoofer level control to 3 4 of maximum If connected set the amplifier s Remote Bass Control at maximum full clockwise 3 Turn the Input Sens control all the way down 4 Set the source unit volume to 3 4 of full volume This will allow for reasonable gain overlap with moderate clipping a...

Page 8: ...s are designed to accept up to 8 AWG wire Make sure to strip the wire to allow for a sufficient connection with the metal inside the terminal block How do I properly set the input sensitivity on my amplifier Please refer to Appendix A page 12 to set the input sensitivity for maximum low distortion output My amplifier doesn t turn on Check the fuse not just visually but with a continuity meter It i...

Page 9: ...ocument your amplifier s switch and control positions LP Filter Frequency Hz Input Sens Bass Boost Remote Level Port min max 40 300 Off 12dB Protect Power High Level Inputs LEFT RIGHT LEFT RIGHT Amplifier Controls Amplifier Inputs Pre Outs Amplifier Status ...

Page 10: ...18 JL Audio 19 INSTALLATION NOTES INSTALLATION NOTES ...

Page 11: ...ly to this product thereafter Some states do not allow limitations on implied warranties therefore these exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state If you need service on your JL AUDIO product All warranty returns should be sent to JL Audio s Amplifier Service Facility freight prepaid through an au...

Reviews: