AMP, Sub and ground problem

[UWbeast]

Hey Everyone,

I am in the middle of installing an amp and subs in my 91 318i. Everything is going fine...almost. There is something going on with the ground connection from the amp. I tried the one dear the battery in the trunk, the metal near the battery...even the negative lead on the battery itself. It only works once in a while. I cleaned the coating of some metal near the battery tray and connected the ground there. It worked great for a few mins, then stopped again. When I connect it to most things that should work...the protect light on the amp goes out but the power doesn't come on...any ideas??

Thanks!

Steve

 

[jszar]

check all connections. the ones at the sub as well.

for the ground, you need BARE metal on the chassis. not the battery terminal. a bolt that goes into the chassis will do, but for a good ground ensuring the amplifiers complete intended use, get on some bare metal. remember, the amp can only draw current that is grounded, so a poor ground will only allow (by physics/science) a poor amount power to reach the amp.

give me the model and make of your amp and subs. i might be able to help some more. i'd especially look at the wiring on the subs, you could be loading the amp below its allowed impedence. it could also be a sign that your amp is dieing, they do weird things sometimes before they die completely. is this new equipment?

 

[UWbeast]

good call...


I went back, cleaned the battery contact where the power was connected, and the grounds. Works great..

Thanks!!!!!!!!!!

 

[jszar]

good. glad i could help.