Question about Car Amplifiers

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Protection Light Is Coming On

When I plug in my Rca connections, the protection light comes on. I have the speaker wires hooked up to the amp, but no the subs. The only things connected are the power and the Rca connections. However, the protection light only comes on after I hook up the Rca. This problems arose suddenly and I do not know what the issue is. I am not very familiar with car audio, so if someone could help me out, that would be fantastic. Also, my younger brother has told me that I may have loose connections at the head unit, because the left side of my car likes to go out randomly. Are these two issues connected?

My speakers wires were touching and the amp kept on going to protection, i have now changed my wires and put new speakers but still goes on protection.

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  • runescapeadd Jan 26, 2009

    My amp isnt coming on and the protection light is on when I hook power up to it.

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You say the protection mode only occurs when you plug the RCA's in. Does it have to be both RCAs or just one?

The other end of the RCA cable is plugged into the HU?

It possible the RCAs have too much DC voltage on them, causing the amp to go into protection.

Is there a short in the RCA cable?

I would definitely check out the RCA connection at the back of the HU, as it sounds like there could be other issues there. Make sure the RCA connectors aren't touching any other metal (especially +12V).

Posted on Mar 14, 2008

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