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My amp fuses keep blowing when i connect the positive cable to my amplifier to the battery

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This could be because of shorted/pinched speaker wires. or shorted output devices in the final stage of the amp. try to disconnect all the speaker wires from amp then try it again, if it blows the fuses again, there is a short in the amp and unless you can test the output transistors orv the outputdevices, then you will need to take the amp into a repair shop or replace it
techman

Posted on May 02, 2010

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Why does my inline fuses keep blowing on a jbl gto 14001 amp


You need to calculate the amount of amps being driven through that fuse + the amount you need to feed the amplifier.
In my Volvo S40 and V70 I had no problems driving an amplifier of the rear power connector, but on my Honda S2000 however I had to create a different connection all the way to the battery line for a smaller amp (connection as in cables, condensers/filters and fuses).

Feb 18, 2016 | JBL Car Audio & Video

Tip

Save your charging,and electrical system when installing a audio amp.


Every one wants the BIG amp,the more powerful,the better right?When installing an audio amp,it is good to install a addition battery,in the trunk, it is the idea place,just ground the battery to the frame or body,to a good know ground,It needs to be a large cable,1/o wire,yeah,that is big,but will keep you from having problems,then run a 1/o positive cable from the aux battery you have just put in the trunk,to the main battery in the vehicle,use a 3/4 heater hose to insulate the positive cable you have just installed.This heater hose will prevent a portion of the cable to be rubbed threw on the insulation of the cable and shorting out.Then install the amp.Now ,for better electrical control over the charging system of the vehicle,you can install a isolator ,to separate the circuit,and still charge the battery up with the vehicles alternator.Install the isolator at the vehicles battery and the positive cable you just ran.The alternator will charge the aux battery,and the vehicles battery,and not affect the running of the vehicles engine,or charging system.Be sure to connect the amp to the aux battery only,and the aux battery needs to be a good strong battery such as a 65 style battery such as for a full size ford crown victoria.These batteries are full of power.There you are,you are ready to thump,and do it safely .You need to install a fuse holder between the positive cable from the aux battery and the isolator,use a max link fuse holder and fuse,and a strong 60 or 80 amp fuse,this will blow into before starting a fire,.

on May 28, 2010 | Car Audio & Video

1 Answer

I just replaced an amp and now the inline fuse by the battery keeps blowing


Most likely you have your power and ground connections reversed on the amp. That will cause the fuse to blow immediately upon contacting the two sides of the fuse. If the fuse stays intact for a short while but pops after turning the amp/car on and your connections are correct then there's a problem with the amplifier and it either needs to be serviced or replaced.

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1 Answer

Blow out amp


try a basic connection connect

positive from car to positive of amp

ground to ground

and positive of car to remote of amp

see if it turns on

also check the fuses in the car
check for voltage on the wires

May 15, 2010 | Performance Teknique ICBM-782 Car Audio...

1 Answer

Power/ Ground Problem. Im running a 6ga Power wire to the battery (approx 6')with a 40amp fuse. The amp turns on, then about 10 seconds later blows the fuse. The ground is the same ga wire and is grounded...


1. Start by undoing your ground.
2. Use a jumper cable to hook up the ground to the battery ground.
3. Install fuse and test.

If it continues to blow you have an internal amp problem.

If it fails to blow a fuse you have a problem with the chassis ground.

If it is a ground issue you can chase down the various ground straps and clean the connections or you can run another ground cable to the chassis (body) ground to the battery to reestablish the connection.

Feb 10, 2010 | Rockford Fosgate Punch 201S Car Audio...

2 Answers

I have an alpine m1000 amp and the fuse in the wire from the battery to the amp keeps blowing. Does anyone have any ideas?


Check that you dont have a short on the main power cable from the positive of the battery too ground

If it only occurs when you connect the amplifier... then the amplifiers power supply has gone short curcuit.

Take amplifier into a qualified repairer and get it fixed

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1 Answer

Kenwood KAC-729S keeps blowing fuses. Checked all cables, re-ran power, remote, and ground. All good, still blows them at power-up.


Hello opey_69a,

Here are the troubleshooting steps for fuses blowing.
1) Remove all wiring except ground, power and remote and see if the amp powers up without blowing the fuses. If it does, the problem is in the input cables or speaker wiring.
2) The use of loudspeaker impedances below the recommended minimums will cause the amp to draw excessive current - check.
3) A shorted or grounded RCA cable may cause the fuses to blow - check.
4) If an amplifier fuse blows continually, with only +12 volt, ground and remote leads connected, the amplifier is probably defective, most likely shorted output MOSFET's. In this case the amp needs professional repair or replacement.

Hope this helps.

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1 Answer

Power fuse on amplifier blows as soon as the power cable is connected


you should check the fuses your using may be too small and make sure you connect the positive first then the ground cable and there are no shorts when you ground the amp.

the most common will be the fuse ampage is too low thats why its blowing when you power the amp

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1 Answer

The amplifier keeps on blowing out the fuse when i connect the battery


Start by dis-connecting the power lead at the amp, and securing it (where the bare wires are not touching ground) Now insert a new fuse then make the battery connection. If the fuse blows then you need to trace the power wire to find the short, or replace the entire wire, paying close attention to sharp edges and pinch-points that could cause this problem to reoccur.
If the fuse didn't blow, dis-connect the power lead at the battery then all of the other connections at the amp, reinstalling the power lead to the amp. With only the power lead connected at the amp and the good fuse inserted, reconnect at battery,and if the fuse blew then the problem is with the amp. and should be repaired or replaced depending on its value and the cost effectiveness of those two options.
If the problem has not yet been discovered, continue with tracing each of the remaining amp wires in that manner, as been described above.
Good luck...

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1 Answer

Blowing fuses


Are you sure you don't have the positive and negative power wires reversed?

Does the fuse blow without remote voltage applied?

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