Blown Fuse Attaching a speaker wire and blew a fuse

It's possible that the fuse has blown, which can happen if there is a power surge or if there is a problem with the wiring or connections. Here are some steps you can take to troubleshoot the issue:

1. Check the fuse: The first thing to check is the fuse. Make sure the receiver is unplugged from the power outlet, then locate the fuse on the back of the unit. Check to see if the fuse is blown, which can be indicated by a darkened or broken wire. If the fuse is blown, replace it with a new one of the same amperage rating.
2. Check the connections: Make sure all the connections to the receiver are secure and not loose or damaged. Check the speaker wires, power cord, and any other cables that are connected to the unit.
3. Disconnect other equipment: If you connected the Pioneer receiver to another receiver and a speaker system, try disconnecting all the equipment and connecting only the Pioneer receiver to a power outlet. If it powers on, you may need to troubleshoot the other equipment to determine if it is causing an issue.
4. Check the power outlet: Make sure the power outlet that the receiver is connected to is functioning properly. Try plugging in another device to the outlet to see if it works.

Check your fuses first. See if any are blown. If not, commence to checking the state of the wiring job you did to install them. Chances are something came undone and either:
A) Isn't connected anymore..
B) Is grounding itself out, causing a short.
If option B, chances are it also blew a fuse. So if a fuse is blown, still check the wiring. lol

If the fuse is correct ( check manual) it shouldn't blow under normal operation. Once in while a fuse will break internally and thus blow the fuse. look close at the blown fuse If it is a "violent" blow (totally black inside) then you have an overload condition. I would use an ohm meter to check the connection to the speakers. Usually it should be between 8 ohms and 4 ohms if the number is lower than 4 ohms your speakers or wiring are putting to much of a load on the amp. If the fuse was not a "violent" blown fuse then replace with a new fuse of the exact proper value. many amps use an MDL fuse that is a slow blow fuse and has much different in circuit function than a ACG fuse so use only the exact proper furse that the manufacture recomends. If the load (speaker and wiring) is correct and the fuse is correct and still blows then you have a component problem and the amp will need repair

Hi, check the remainder of the fuse's chances are you have blown more than one fuse, if they are all ok then you may have blown one of the main fuse's which are located in a fuse box in the engine compartment.

could be the internal fuse on the amp or the fuse doesnt have enough for the amp.

Fit a 3 or 2.5 anything lower, if you can get away with it, but nothing higher.
However the chances are that it blew due to an overload, often caused by a shorted semi-conductor acting like it was a piece of wire. So even fitting a smaller one and it blowing again doesn't mean it's due to the rating.

if it has a short some where in the lines it will do that

Check output transistors-most likely cause! also check for burnt resistors...
Marc

If no warranty - remove amp and check sub to another amp to isolate speaker from internal amp. Either the amp blew a channel or subwoofer blew. JBL's are typically well built. Has this speaker often been pushed loud often?

I used to have one of those amps also (nice amp btw) Did you try another fuse of the same size?
Is it blowing fuses everytime you put one in or did it just blow that one fuse ?
Is the conection on the battery solid and clean of corrosion build up? Because that is a good amp and if wired properly shouldnt blow out or anything and so if the speaker is not blown then maybe connection is weak somewhere? I would try disconnecting the speakers from it and try a new fuse and if it does not blow the new fuse than amp is ok? and if it does blow the new fuse right away then there must be a short somewhere in the wire or the amp. then disconnect the fuse again and reconnect the speakers and if the fuse blows with the speakers connected but doesnt blow with them disconnected then you know it is a blown speaker causing the problem.

Just currious but what size fuse do you have connected at the battery?