I have a really wierd problem with my car amp, plz help

Did it work with your friends sub? It sounds like an heat problem. Most amps have a fail safe for overheating. When you turn the amp up, it gets too hot and powers down.

J-Rod said:

No, it didn't work with my friends sub, and no, it's starting cold

Click to expand...

Is it stopping cold?

J-Rod said:

Well, it only stops when i try and turn it up. I've run it way hot and way cold before and it didn't really effect it.

Thanks

Click to expand...

Where are you turning it up from? At the head unit or the amp? It could be wiring in the amp that is getting messed with if youre turning a knob on the amp.

How many watts continuous is this amp, and what gauge wire do you have running to it? Is it directly connected to the battery?

EDIT: I should also add that you should be using preamp out from your radio leading to your amp. My guess is that your power and ground wires are either too small or don't have a good connection.

Well, by Googling around, I noticed this amp has protection for temp, voltage & current faults. If temp is out, since you said it is cold, you need to check voltage and current when the volume is low and when you turn it up. My guess is voltage is dropping too low or current is getting too high.

J-Rod said:

would you have any idea how to something like that

Click to expand...

Yes, get a multimeter and put the meter into something just above 12V and connect the leads to the meter correctly.. Then put the positive lead of the meter on the positive feed. Put the negative feed on ground and measure. Anything around 12.0 - 12.5V or less is a problem. To note, 12 volt systems in cars are actually 13.8 volts. You don't want anything greater than a 10% difference (1.38 volts +/-). This means the voltage should read somewhere between 12.42 and 15.18, although 10% difference is getting to an extreme point.

For current, you need to put the meter into something greater than what the amp pulls (can't find specs, but if the amp pulls approx 15A, then find something on the multimeter labeled 15A or better), and put the leads into the correct pins for measuring current. Now disconnect the positive lead from the amp. Connect the meter inline (one lead goes to the distribution block, the other goes to the amplifier), and measure the current when the volume is low and when it is high.