Question about Audiofonics ADF-241 Car Audio Amplifier

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Audiofonics ADF 241

The green light on the side is on but the 3 blue lights on top arent...doesnt seem to have the same bass response as before. Whats the problem?

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2 Suggested Answers

etirbynnor
  • 655 Answers

SOURCE: audiofonics adf-241 no power all wires connected fuses ok.

Hello pimprascalz,

Many amps will go into protect mode if one of the speaker wires is shorted or grounded, or if the voice coil(s) are defective. Try disconnecting the speaker wires one at a time and see if the amp still goes into protect upon power up. Likewise, some amps will go into protect if one of the inputs is grounding out. Again, to troubleshoot, disconnect them one at a time and try the amp. Next, make sure that the amp itself is not grounding. Most amps need to be mounted to a nonconductive surface. If the case contacts the frame of the vehicle, it can cause a problem. If the problem is not in the speaker wires or the input cables, the amp case is not contacting the vehicle frame, and you have checked your power, ground and turn-on leads, then the amp itself is probably faulty.

Hope this helps.

Posted on May 19, 2009

etirbynnor
  • 655 Answers

SOURCE: will not put out sond

Hello billyelder,

If the amp is powering up but not producting any sound, there are 4 possible causes.

1) Incorrect or faulty wiring.
2) No input or input too low for the amp.
3) Defective speakers.
4) Incorrect amp or head unit settings.

Start by checking all of the wiring and onboard fuses. Especially check the speaker wiring and make sure there are no shorts or grounds and that the insulation is not nicked or frayed. Check the RCA cables by substituting a known good pair. Check the receiver (head unit) to see if there are any settings that need to be turned on for the preamp outputs to work.

Test the speakers on another output to determine that they are functional.

Check the amp settings and insure that filters, crossovers and gain controls are properly set. If your wiring and the settings all check out and the speakers work on another output, the amp itself is probably defective.

Hope this helps.

Posted on Sep 01, 2009

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Amps getting power that's good it seems as though either you have a cross in your bridge or you fried your amp

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Will not put out sond


Hello billyelder,

If the amp is powering up but not producting any sound, there are 4 possible causes.

1) Incorrect or faulty wiring.
2) No input or input too low for the amp.
3) Defective speakers.
4) Incorrect amp or head unit settings.

Start by checking all of the wiring and onboard fuses. Especially check the speaker wiring and make sure there are no shorts or grounds and that the insulation is not nicked or frayed. Check the RCA cables by substituting a known good pair. Check the receiver (head unit) to see if there are any settings that need to be turned on for the preamp outputs to work.

Test the speakers on another output to determine that they are functional.

Check the amp settings and insure that filters, crossovers and gain controls are properly set. If your wiring and the settings all check out and the speakers work on another output, the amp itself is probably defective.

Hope this helps.

Sep 01, 2009 | Audiofonics ADF-241 Car Audio Amplifier

1 Answer

When my car is not on the three blue lights on top of the amp are still on, but the power light on the side of the amp is not. Is it normal for the three lights on top to stay on all the time?


No it is not normal.. Normaly when lights stay on the problem is a constantly hot remote wire, but in your case you say the main power light is off.. Soo one can only assume the the problem is in the LED board it's self. This can happen when an amplifier is over heated, or has a poor soldering job. Now if you can hear white noise comming from your speakers with those lights on, then you have a simialr, but more serious issue. If it is just the lights, and not a powered up amplifier I would just let it go.. LED's draw very little power, and can't hurt anything. If the AMP is actualy staying on, I would get it repaired..

Jul 25, 2009 | Audiofonics ADF-241 Car Audio Amplifier

1 Answer

Looking for audiofonics adf-240 owners manual.


There may be a loose wire to the lights, or the power supply or amp may have a problem. Do you have the amp mounted to your sub box directly? You shouldn't. The vibrations from the bub will kill the amp in a short amount of time. If it is noticeably weaker, you should check out all aspects of the system. For instance, if you have a dual voice coil sub, is one coil open? Is one channel on the amp bad? Is half of the power supply on the amp bad? hence half the power, and no lights?

Jun 11, 2009 | Audiofonics ADF-240 Car Audio Amplifier

1 Answer

Amplifier wont move subs


I dont know if this will help you but start at the deck and make sure that the outputs(RCA) arent crossed over to highpass and do the same at the amp make sure that its set for lowpass- set half gain -bass boost half gain- subsonic minimum - If that doesnt help try using an i pod with an adaptor that you can play it right into the amp this is to see if you are getting signal from the deck to the amp if it doesnt work with an i pod or mp3 plugged directly into it then you may have got you a blown amp going on- good luck with that

May 29, 2009 | Alpine MRP-M1000 Car Audio Amplifier

1 Answer

Audiofonics adf-241 no power all wires connected fuses ok.


Hello pimprascalz,

Many amps will go into protect mode if one of the speaker wires is shorted or grounded, or if the voice coil(s) are defective. Try disconnecting the speaker wires one at a time and see if the amp still goes into protect upon power up. Likewise, some amps will go into protect if one of the inputs is grounding out. Again, to troubleshoot, disconnect them one at a time and try the amp. Next, make sure that the amp itself is not grounding. Most amps need to be mounted to a nonconductive surface. If the case contacts the frame of the vehicle, it can cause a problem. If the problem is not in the speaker wires or the input cables, the amp case is not contacting the vehicle frame, and you have checked your power, ground and turn-on leads, then the amp itself is probably faulty.

Hope this helps.

May 19, 2009 | Audiofonics ADF-241 Car Audio Amplifier

1 Answer

How to change the Red Protect light to Green Power.


If the amp goes into protect mode, it's likely due to shorted output transistors. To eliminate other possible problems, read through the following page:

Amp in Protect Mode - Troubleshooting

If the problems are not with the wiring, follow the link at the bottom of the page to the Amplifier Repair Primer page.

Let me know if you have any other questions.

Sep 21, 2008 | Audiofonics ADF-240 Car Audio Amplifier

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From what did the wire become disconnected (amp, battery, cap...)?


Jun 18, 2008 | Audiofonics ADF-241 Car Audio Amplifier

1 Answer

Power lights


no that is not normal. That means your amplifier is still getting power. Try connecting your remote wire from your cd player, to an on / off switch (auto parts store) and from the on / off switch to the amplifier. When you turn your car off, turn the switch off and your amp will no longer have power.

Feb 20, 2008 | Audiofonics ADF-241 Car Audio Amplifier

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Reconnect one speaker per channel and swap the RCA cables (L > R and R > L) to see if the working channel switches sides. If not, move all switches and controls to see if any are intermittent.

Jan 10, 2008 | Audiofonics ADF-241 Car Audio Amplifier

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