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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.

owner’s manual

monoblock subwoofer amplifier 

Summary of Contents for 250/1v2

Page 1: ...ise 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 familiar...

Page 2: ...h the vehicle This is an extremely dangerous practice which can result in severe damage to your vehicle and person Protect all system wires from sharp metal edges and wear by carefully routing them ty...

Page 3: ...ct Description The JL Audio 250 1v2 is a monoblock subwoofer amplifier utilizing proprietary and patented Class D technology Its frequency response is limited to the range below 500 Hz It is not desig...

Page 4: ...e Turn On Method 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 present at its Remote input and turn...

Page 5: ...nal active crossover and would like to use the LF Boost and Infrasonic Filter features set the Amp LP Filter switch on 12dB and rotate the frequency selection knob fully clockwise to the 200 Hz positi...

Page 6: ...its optimum power 250 watts x 1 over a wide range of speaker impedances Unlike conventional amplifiers that require a specific impedance to produce optimum power the R I P S equipped 250 1v2 gives yo...

Page 7: ...1v2 at 3 4 source unit volume 7 Connect the AC voltmeter to the speaker output connectors of the amplifier If the channel pair is operating in stereo it is only necessary to measure one channel If br...

Page 8: ...fficient 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...

Page 9: ...16 JL Audio 250 1v2 Owner s Manual 17 INSTALLATION NOTES Use this diagram to document your amplifier s switch and control positions...

Page 10: ...18 JL Audio 250 1v2 Owner s Manual 19 NOTES NOTES...

Page 11: ...d 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...

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