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Thank you for purchasing a JL Audio amplifier for 

your automotive sound system. 

Your amplifier has been designed and manufactured to exacting

standards in order to ensure years of musical enjoyment in your

vehicle. For maximum performance and extended warranty 

coverage, we highly recommend that you have your new amplifier

installed by an authorized JL Audio dealer.  Your authorized 

dealer has the training, expertise and installation 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 JL Audio dealer for assistance. If you need further

assistance, please call the JL Audio Technical Support Department at

(954) 443-1100 during business hours (Eastern Time Zone).

JL AUDIO 

e1400D 

monoblock subwoofer amplifier

o w n e r ’ s   m a n u a l

Summary of Contents for E1400D

Page 1: ...quipment 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...

Page 2: ...ppropriate Do not mount the amplifier in the engine compartment under the vehicle on the roof or in any other area that will expose the amplifier circuitry to the elements IMPORTANT JL AUDIO e1400D 3...

Page 3: ...e1400D 5 PRODUCT DESCRIPTION The JL Audio e1400D is a monoblock subwoofer amplifier utilizing proprietary and patented Class D technology Its frequency response is limited to the range below 250 Hz It...

Page 4: ...nctional JL AUDIO e1400D 7 TURN ON LEAD The e1400D uses a conventional 12V remote turn on lead typically controlled by the source unit s remote turn on output The amplifier will turn on when 12V is pr...

Page 5: ...ger limited to 0 or 6 dB allowing a range of 0 12 dB of boost to be selected PRE OUTS The e1400D s Pre Outs connectors output unprocessed pass through left and right channel preamp level signals permi...

Page 6: ...igital ACVoltmeter 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 appl...

Page 7: ...ET THE INPUT SENSITIVITY ON MY AMPLIFIER Please refer to Appendix A page 10 to set the input sensitivity for maximum low distortion output MY AMPLIFIER DOESN T TURN ON Check to make sure there is 12V...

Page 8: ...JL AUDIO e1400D 15 14 JL AUDIO e1400D INSTALLATION NOTES Use this diagram to document your amplifier s switch and control positions...

Page 9: ...es 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...

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