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speakers go silent, is it my 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=54449
Printed Date: May 14, 2024 at 4:18 AM


Topic: speakers go silent, is it my amp?

Posted By: stillfading
Subject: speakers go silent, is it my amp?
Date Posted: April 22, 2005 at 7:56 PM


I recently had new speakers put in and hooked them up to my amp which I just bought also. All 4 speakers are 6.5" Infinity Kappas which run at 75 RMS. My amp is an MTX Thunder 564 4 channel amp that runs at 70 watts RMS x 4 at 4 ohms.

I had front speakers and amp installed at the same time, then had back speakers installed a few weeks later. Front speakers + amp worked fine, got my back speakers installed and they were all fine until the drive home. Now every once in a while I'll be driving and the music will stop. Doesn't crackle or distort, just stops. I'll be listening to a CD and the cd still plays because the time on the song keeps going and after about 5 minutes the sound will cut in like normal. I can still work with my cd player, open and close it, do whatever.

So I'm guessing my amp is overheating and causing the volume to just disappear until it cools down? Why would it do that if it happened like 15 minutes just after I installed the rear speakers and hooked them up to my amp? Is my amp not powerful enough to handle my speakers? I'm new to car audio like so many other people, so I'm looking for help. =/



Replies:

Posted By: jeffchilcott
Date Posted: April 22, 2005 at 8:24 PM
sounds like a shorted wire somewhewe, more then likely on one of the rear speakers.   You should take it back to where it was installed and have them repair it right away

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Posted By: stillfading
Date Posted: April 22, 2005 at 9:42 PM
Thanks for the input, I'll definitely do that. Would the wire from the rear speakers prevent the front ones from playing though too? Just curious, thanks for the reply!




Posted By: overworked2
Date Posted: April 22, 2005 at 10:31 PM
Yes, the amp will go into protection mode and stop the whole unit from operating.

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Posted By: stillfading
Date Posted: April 23, 2005 at 10:52 AM
i didnt know that, i feel a little less worried about it, thanksposted_image




Posted By: boardinbum
Date Posted: April 23, 2005 at 10:56 AM
I think overworked2 got it. It sounds like a short, or for some reason, your + and - wires are touching causing the amp to go into protection mode. But I'm pretty sure that it's one of the two - I had this happen to me recently.




Posted By: stillfading
Date Posted: April 23, 2005 at 2:59 PM
do you think it's the connections by the amp or to the speaker? I have a 96 Acura Integra and my 6.5" kappas are a SUPER tight squeeze in my rears, no way do I wanna take those out to look at the connections, it was so hard to get them to fit. So hopefully it's something connected to the amp then




Posted By: forbidden
Date Posted: April 23, 2005 at 3:36 PM

Remove one set of speaker leads at a time and test after each set is removed. If and when you find a particular pair of wires that when removed, the amps comes alive, power it down and reconnect the other speaker leads again and retest. If the unit is still working, look at the identified problem set of wires from the amp to speaker to check for a slice in it or a bad speaker itself. It may also be the rca input wires as well, I would do the same type of check with them.



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