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Re: Amp kills battery
In first are you sure that the connectics are correct?? to plug your amplifier to your electric system on your car you have to plug the positive (Big Red) to the positive battery via a fuse breaker, the ground(Black) must be connect to the car frame and it has to be shortly, and the last connection blue must be connect to your switched ouptput on your radio.
If this are correct you have to use an amperemeter to follow your leak, for this you have to go to a electrical car specialist. ;)
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well the nasty spark it shoots its because you r to first connect negative first always and than positive or check ur main cable/fuse that is connected to your battery inside the fuse box its actually pretty easy to find just follow the positive red wire from your battery till u get to the fuse box it looks like its connected to negative and positive, check it it may be the problem(inside the fuse box), if it isn't you should check the main source of battery recharge which is your alternator it may be going bad
There's a serious voltage drop somewhere in the wiring. If the voltage went up when you installed a 2nd battery closer to your amp, I would suspect that the power and/or the ground is either not getting a good solid connection or is too small a gauge for it's length, or both. I'd try to find the problem before installing additional batteries or a heavy-duty alternator.
The only time a second battery is useful is if the audio system is to be used with the car off. And then it should be installed with an isolator to keep it from the rest of your car's electrical system.
After you have made sure that your wiring supports the amp and only if your total audio system power is 1200 watts RMS or more, you may need to: 1. Upgrade to a high output alternator 2. Upgrade to a heavy duty deep-cycle battery 3. Upgrade the "Big 3" - that is to replace (or add to) the power wire between the battery and alternator, the ground from the battery to the chassis and the ground strap from the
engine/transmission to the chassis with at least 2 AWG wire and preferbly 1/0.
If they have bridged the outputs of the amp, be sure that the "ohms" load is 8 ohms. This would then apply a 4 ohm load to each of the output channels. It sounds like they have bridged the output or else hooked up the speakers in a paralled configuration that is trying to kill your amp. If you are using dual voice coil speakers then you have to treat each of the voice coils as a seperate 4 ohm speaker and wire accordingly. You need to correct this NOW or else you will fry your amp. Good luck.