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  #1  
Old 05-28-2013, 02:42 PM
abneyxstar abneyxstar is offline
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sub stopped working

I was getting pretty loud with my stereo this weekend and the sub stopped working. Everything else as it pertains to stereo is working just fine and I did not here anything that would make me think the speaker blew. There is nothing coming out at all. Is there a fuse or something I can check?
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Old 05-28-2013, 02:55 PM
Ironhorse Ironhorse is offline
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wiggle the connection at the amp. This happened to me last summer.
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Old 05-28-2013, 03:07 PM
abneyxstar abneyxstar is offline
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I will check this out and see if anything is loose . thx
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Old 09-24-2013, 08:32 AM
Ironhorse Ironhorse is offline
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Quote:
Originally Posted by Ironhorse View Post
wiggle the connection at the amp. This happened to me last summer.
Check the wire at the amp. This happens to me every summer and just needs to be wiggled to power the amp back up. I have to address this in the spring.
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Old 05-28-2013, 03:06 PM
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ZachDaddy ZachDaddy is offline
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When battery power drops to low the sub will stop playing. Check ur battery voltage with a volt meter
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Old 05-28-2013, 03:08 PM
abneyxstar abneyxstar is offline
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Originally Posted by ZachDaddy View Post
When battery power drops to low the sub will stop playing. Check ur battery voltage with a volt meter
I have since had the engine cranked up and running the entire next day and tried the stereo again...again only the sub was not working the next day as well.
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Old 05-28-2013, 03:19 PM
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ZachDaddy ZachDaddy is offline
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If you run the engine and allow the battery to charge up a bit and the sub begins to play again, at least you know you ran your battery down to far.
If you don't have a dual battery set up its time to.
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Old 05-28-2013, 03:20 PM
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ZachDaddy ZachDaddy is offline
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Check to see if the amp light is on and it's wiring.
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Old 05-28-2013, 03:24 PM
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TN Barefooter TN Barefooter is offline
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There should also be an in-line fuse running from the battery to the amp on the main (+) wire. See if the fuse blew.
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Old 05-29-2013, 10:21 AM
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EarmarkMarine EarmarkMarine is offline
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Quote:
Originally Posted by abneyxstar View Post
I was getting pretty loud with my stereo this weekend and the sub stopped working. Everything else as it pertains to stereo is working just fine and I did not here anything that would make me think the speaker blew. There is nothing coming out at all. Is there a fuse or something I can check?
Pull the sub and measure across the terminals with a multimeter. You are looking for a DCR that is anywhere between 80 to 100 % of the stated impedance. Make sure that the woofer still moves and is compliant. If the woofer voice coil is open or the woofer is frozen then look no farther. Keep in mind that thermal damage can be accumulative with no major noise coming from the sub while being driven. Check the terminations inside the enclosure. Check the braided leads from the woofer terminals leading to the voice coil. If you do not have a meter ($10+) then test the disconnected sub with a quick pulse from a 9V battery. If the sub seems to be operational then move upstream to the speaker wire and the amplifier. If the amplifier is multi-channel and driving other satellites that play fine then check for an AC voltage with a multimeter on the sub channel output. If you get a voltage then the problem is elsewhere. If you do not get a voltage then the issue is isolated to that channel. Keep in mind that a supply fuse or internal protection circuit is likely to govern the entire amplifier and not just a portion. If you have a dedicted sub amplifier then check for AC voltage from the RCA source, check for AC voltage on the amplifier output, and check the supply DC voltage (a solid 12.0 + volts) across the amplifier primary supply terminals including the remote turn-on lead. Check all physical connections. Check fusing. Check for a status indicating LED on the amplifier per the amplifier manual.
If you invest in a multimeter and learn only three settings you can conclusively isolate the true problem in no more than 20 minutes.

David
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