Question about JBL BP150.1 Car Audio Amplifier

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Red light on but no power to the woofer

Amp has gone through a couple of fuses. I did see some smoke when i recplaced one of t he fuses. Now the light comes on but no sound comes to the sub. Is it cooked or what. Thanks

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If you saw smoke, Im sorry to tell you, your going to need to take the amp to a repir personm or shop. Good luck and please let us know how you made out with this repair.

Posted on Oct 05, 2006

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Posted on Jan 02, 2017

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2 Answers

Sub woofer not turning on


Is it receiving power? If not that is your answer - could be a blown fuse, bad wire, bad connection, etc.

If power is there and it still does not work then the problem coud be with a bad sub woofer on/off switch, internal fuse, or worse, blown amp from over driving.

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My subwoofer doesn't receive power, all amp fuses are fine, amp powers on, remote wire and rca wires are connected and intact. Before it stopped working all together the woofer would cut out and after...


If you are getting power to the amp, try this....Find a small speaker, unhook your sub and wire speaker to amp. Turn on your system at a low volume....If the other speaker is playing through amp, then your sub is shot.....If the small speaker doesnt work, then its either your channel is gone on the amp or the rcas have quit off off your head unit.

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I have a SPL phantom dk-3400 car amp and when i


Even withou the help of any diagram you have a visual indication. Look inside to the area of the burn. identify the component. check around the burned area for the cause of the burn. it could be the failue of the output or the power side. equipped with a multimeter you must be able to identtify stage by stage the short of the circuit. remove, replace and test. afterwards connect the woofer - check if your woofer coils are damaged too- Hope this helps? Good day

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I got a sony xplod amp 1000 watt everything is connected good the ground wire is on a bare metal surface 12v wire good power fuse ALL wiring is as it should but there is no bass? the green light is on but...


Open your sub-woofer and check the continuity of your bass speaker. Chcek also the fuse of the sub-woofer amp...the fuse might be busted already.

Jun 05, 2010 | Car Audio & Video

1 Answer

Amp not working to power sub woofer


remote wire/ fuse possible? have you checked?
traced all voltage?take and disconnect remote wire from amp and make short wire from remote to 12v if green light works then u may have bad remote wire or blown fuse.

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could be an internal problem such as a relay or resistor or something of the sort

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XM-552HX ofside led turn yellow


You may have an issue with the impedence of the woofers causing the unit to go into protection mode. Make sure that the woofers are no lower than 2 ohms at the amp. This can be done with a voltmeter to check. You are better off running the woofers at 4 ohms if possible. If you disconnect the speaker wire from the amp, does the yellow light still come on? If so, then there may be a problem with the amp.

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1 Answer

Amp light is on but no power to my subs!


Hi There.

When you say the 40 Amp fuse blew. Was it your mains battery fuse or was it the fuse on the amplifier? If it was the fuse on the amplifier then you may have hurt the amplifier. The Kenwood KAC-8101D is a 1000 Watt monoblock amplifier. Therefore if you say that 1 of your woofers is not playing, then it is almost certainly blown if you are sure it is connected correctly. Try disconnecting it and only running the woofer that tries to play. If this woofer is still working correctly, you will notice a drastic drop if the sound of your bass. The reason for this is because you have changed the impedance load on your amplifier due to the fact that the other woofer is not working. Have your working woofer checked and replace the faulty woofer then you should be banging again.

Hope this helps!!

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3 Answers

The red light on my amp keeps coming on and it wont work


You need to check your woofers. Most likely one or both may be a) blown or at a dead short or b) the ohm rating on them may be too low. What model woofers and amp do you have??

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No Sound coming out of amp to subwoofer


check the fuse box and make sure there is no loose connection there. also check the wire that feeds power to that amp. good luck

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