Blown Amp?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=53670
Printed Date: May 20, 2024 at 10:47 AM
Topic: Blown Amp?
Posted By: boardinbum
Subject: Blown Amp?
Date Posted: April 10, 2005 at 9:32 PM
I got a Pioneer GM-7100M amp a few weeks ago. Today, I was listening at a moderate-to-low volume, and my sub just stopped. I checked my amp, and the light ontop of it still lit up. So I used a voltmeter to check it. The power/ground are still getting full power, but when I checked the mono channel, I got a -0.001 reading. I tried moving the gain around, messing with my HU, checked the amp's two 20A fuses, and the fuse on the power cable. All of which were still good. Any ideas on how I could fix this? Or is it just a defective amp?
Replies:
Posted By: tytyguy
Date Posted: April 10, 2005 at 11:15 PM
you can try checking your wires. check your ground. check your wires in your sub box. also try smelling your amp and see if it smells burnt. if not probaly defective ------------- tyler
Posted By: boardinbum
Date Posted: April 10, 2005 at 11:19 PM
Checked wires - all still good.
Checked wires in box - still good.
Checked sub - still good.
No burnt smell from amp.
Posted By: furflier
Date Posted: April 11, 2005 at 6:53 PM
Check your rca cables. Also try another speaker on the amp.
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Posted By: boardinbum
Date Posted: April 11, 2005 at 7:50 PM
RCA cables? Would it stop sending any power to the speaker terminal if an RCA cable came unplugged?
Posted By: furflier
Date Posted: April 11, 2005 at 8:22 PM
If your rca cables came unplugged from the back of your hu ,you would not get a signal to your amp. Or if they somehow got cut, or if you had them under stress, this could cause the amp to not produce sound. This is an inexpencive thing to try. Also try connecting a different speaker to the amp. Try hooking your amp to a friends system to see if you get the same results. If not then the problem could be your hu.Just a thought.
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Posted By: boardinbum
Date Posted: April 11, 2005 at 9:57 PM
Meh, I tried checking the RCA's. They also seem to be working properly. I don't think it matters if I try hooking another speaker to it since there's no voltage coming out of it... Tomorrow, however, I will try hooking my amp up to a friend's system. And I don't think it's the HU. Everything else on my HU is working perfectly.
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