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Woofer not powering on

I am having problems with my woofer not powering on. I have taken it all apart and the fuse underneath the circuit board is good. I was wondering about the resistor. Could it be the resistor? What else can I try. All the sudden one day it will turn on out of nowhere. Every time I unplug the woofer or shut it off it will not power back on. Than out of nowhere in the next couple days it will power on.

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Re: woofer not powering on - Bose Acoustimass 15 System Speakers & Subwoofers

Its your power

Posted on Jul 01, 2008

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Re: woofer not powering on

Hows power strip your pluged into ? try differt outlets is it
srewed down tight to wood cabnit wires tight on speaker good grounded power how sthe wire going to it

Posted on Jan 07, 2008

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Why does it randomly lose power?

Hello, I can not say what the direct cause is,

perhaps some soldering points on the printed circuit bords are loosen due to thermic stress. test: give mechanical ticks on the woofer while he is playing to check this.
Hope you will have succes.

Jun 11, 2015 | Mackie SWA1501 Subwoofer

2 Answers

Woofer not powering on

Check the power unit inside woofer, it was cause for same problem in my creative surround.

Mar 30, 2008 | Bose Acoustimass 15 System

1 Answer

Woofer has popping noise

I have the same problem with my Cambridge Soundworks CSW250. Also one of the speakers doesn't work all the time. I'm sure it's a loose connection on the circuit board. When I tap the subwoofer near the connections, the popping noise changes (gets worse, better, other speaker works,etc.).I tried taking the subwoofer apart, but the area near the connections is sealed with glue, so I cannot access it. I hate it because when it works,it sounds so good. Anyone know how to get just the circuit board and back panel?

Aug 09, 2012 | Cambridge Soundworks Speakers & Subwoofers

2 Answers

I also have an Athena ASP4100 sub woofer which blew the fuse on the circuit board and when I replaced the fuse, it just blew it again. As an electrician, my understanding would be the circuit board has a...

You should look at the circuit board for the power amplifier and check for any leaking or bulged electrolytic capacitors. If this speaker uses the circuit boards made by AMI (such as most JBL and Mission sub woofers around 1999-2001 vintage) they had a lot of problems with this as well as bad modules. Google for the module S53AMI and you will find lots of info if this is what you have in that Athena.

Feb 21, 2011 | Athena AS-P4000 Subwoofer

1 Answer

Polk Audio PSW10 electrical board smoking

I should just replace the parts that were burning, it will cost a lot less.

Jan 15, 2010 | Polk Audio PSW10 Subwoofer

1 Answer

No Sound

This might very well be a fuse - check by setting the sub woofer to "On" to see if it powers up. If it does, there may be a problem with the sub woofer audio cable(s) or connection(s).

Don't forget to check for a tripped circuit breaker or blown fuse on the stereo's speaker output. If your sub is connected to a low level output - this shouldn't be a possible cause - as circuit breakers & fuses are usually on amplified (high level) or speaker outputs.

Another possibility is that the settings of the stereo has been changed from a *.1 system to plain stereo 2.0 or some other setting that disables the LFE (low frequency effects) or sub woofer audio output.

Sep 18, 2009 | JBL Venue SUB10 Subwoofer

2 Answers

Woofer will not turn on. fuse was bad but i replaced it and still no power.

Had the same problem, no power from the sub, no light. Opened the box, fuse was bad, replaced the fuse...pop...blew again. Found out that on the bigger middle board next to the power plug there are two capacitors on either side, the inner one burned and crumbled to pieces. I called Kenwood, they said that I would have to bring it to a Electronic Service Specialist that they will give you a number to in your area...or...Ship it yourself to their East Coast Center in Virginia. I already asked if Kenwood is going to send an RMA or Shipping Label and they will not. You will be responsible for the shipping there, but they will pay for the shipping back. Kenwood's East Coast Center in Virginia's number: 757-340-1702 - Good luck

Dec 14, 2008 | Kenwood SW-38HT Subwoofer

1 Answer

Fried Woofer

The problem are worsen that before. It is wisely to replace both left and right amplifier
IC, but make ensure that the power supply feed a good amount of voltage to amplifier,
Also a strong good signal. Be sure to measure it.


Jun 22, 2008 | Alesis M1-Active MkII Main / Stereo...

2 Answers

Power Light off & speaker not working

I had the same problem. The screws around the perimeter of the back plate must be unscrewed and the plate must be pried off as it is glued to the box. When replacing my fuse, 2A 5x20 GMA, it blew the fuse again. Disconnecting the second circuit board prevented the next fuse from blowing, but now the question is what is wrong with the circuit board? I cannot see any damage or shorts.

Oct 10, 2007 | Kenwood SW-38HT Subwoofer

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