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JL Audio

TURN-ON LEAD

The JX360/4 is turned on and off 

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on lead, typically controlled by the 
source unit’s remote turn-on output. 

+12 VDC

Ground

Remote

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present at its “

Remote

” input and turn off when 

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have a dedicated remote turn-on output, the 

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via a switch that derives power from an ignition-
switched circuit. 

18 AWG wire is more than adequate for the 

remote turn-on connection. To connect the 
remote turn-on wire to the amplifier, strip 1/2-
inch (12 mm) of insulation from the wire and 
insert it into the “Remote” receptacle on the 
power connector. Tighten the connector down 
using the supplied 2.5 mm hex wrench.

INPUT SECTIONS

The JX360/4’s has two input sections: one for 

Channels 1&2 and another for Channels 3&4.
These input sections allows you to send signals to 
the amplifier sections through the use of either 
two or four inputs. Each input section offers 
two input connection methods, one for high-
level (speaker level) signals and one for low-level 
(preamp level) signals.

1)  Low-Level Inputs:

  A standard left/

right pair of RCA type jacks in the 

“Low-Level Inputs”

 section is used for 

preamp level (low-level) signal input 
on the JX360/4. This is the preferred 
connection method whenever available.

 

2)  Hi-Level Inputs: 

If your system does not offer 

a preamp level signal option, you can connect 
speaker level signals directly to the 

“Hi-Level 

Inputs”

 connectors using the supplied mating 

connectors and wire harnesses. Simply splice 
the appropriate left/right and positive/negative 
wires

 

to the included harnesses and plug the 

harness into the 

“Hi-Level Inputs”

 connectors 

on the amplifier. The JX360/4 will attenuate 
the high-level signals to make them compatible 
with its input stages.

 

Summary of Contents for JX360/4

Page 1: ...lation 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 w...

Page 2: ...fier requires service or is ever stolen you will need to have B SFDPSE PG UIF QSPEVDU T TFSJBM OVNCFS 1MFBTF take the time to enter that number in the space provided below The serial number can be fou...

Page 3: ...nclosure be ventilated with the aid of a fan In normal applications fan cooling is not necessary IMPORTANT Mounting the amplifier upside down is strongly discouraged If mounting the amplifier under a...

Page 4: ...been securely connected to the amplifier 4 Run signal cables and remote turn on wire from the source unit to the final amplifier mounting location 5 Run speaker cables from the speaker systems to the...

Page 5: ...l in the vehicle The surface of the sheet metal should be sanded at the contact point to create a clean metal to metal connection between the chassis and the termination of the ground wire The use of...

Page 6: ...tions one for Channels 1 2 and another for Channels 3 4 These input sections allows you to send signals to the amplifier sections through the use of either two or four inputs Each input section offers...

Page 7: ...IF FGU BOE 3JHIU 1PTJUJWF QMVH XJSFT to the factory radio outputs Input Mode Switch If you wish to send four discrete channels of input into the JX360 4 simply use all four inputs Channels 1 2 and Cha...

Page 8: ...into each channel section of the JX360 4 can be used to eliminate potentially harmful and or undesired frequencies from making their way through the amplifier sections to the speaker s This serves to...

Page 9: ...d starting point for tuning systems utilizing typical subwoofers and component or coaxial speakers PREOUTS The JX360 4 incorporates a pass through QSFBNQ PVUQVU 1SFPVUT TFDUJPO TP UIBU additional ampl...

Page 10: ...o an 8 ohm load Operating a pair of bridged channels into a load lower than 4 ohms is not recommended and will cause the amplifier to enter a protection mode IMPORTANT Any bridged channel pair must be...

Page 11: ...ts circuitry When the problem is corrected the amplifier will return to normal operation and the Protect LED will shut off SERVICING YOUR AMPLIFIER If your amplifier fails or malfunctions please retur...

Page 12: ...nominal impedance of the speaker system connected to the amplifier outputs 6 Verify that you have disconnected UIF TQFBLFST CFGPSF QSPDFFEJOH 1MBZ a track with an appropriate sine wave within the freq...

Page 13: ...160W RMS x 2 4 ohms Signal Processing Filter Type for each channel pair 12dB octave High Pass or Low Pass with continuously variable cutoff frequency selection from 50 200 Hz Defeatable Preamp Output...

Page 14: ...nched by the terminal set screw and that each connection is tight Check UP NBLF TVSF UIFSF JT 7 BU UIF Remote connection of the amplifier In some cases the turn on lead from the source unit is insuffi...

Page 15: ...item after plugging the input cables back into the amplifier test for output at the speaker outputs of the amplifier Unless you enjoy test tones at high levels it is a good idea to remove the speaker...

Page 16: ...16 JL Audio JX360 4 17 INSTALLATION NOTES Use this diagram to document your amplifier s switch and control positions...

Page 17: ...y 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 h...

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