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Cyber Acoustics CA-3618 subwoofer cuts in and out.

The subwoofer cuts in and out with crackly static. It is not on more than it is on. Before this started happening it used to take a few minutes to warm up before the subwoofer would come on and stay on. Now it barely works. There is pretty much no way to work inside the box unless i cut a hole in the back.

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Crackling noise and cut outs generally mean that the speaker is torn, or the cone is separated from the driver. This means the speaker is broken irreparably. It sells for $40 now, which means it is not worth fixing. These low cost speakers are built to not be taken apart.

Posted on Mar 26, 2014

  • 2 more comments 
  •  Mike M
    Mike M Mar 26, 2014

    Crackling noise and cut outs generally mean that the speaker is torn, or the cone is separated from the driver. This means the speaker is broken irreparably. It sells for $40 now, which means it is not worth fixing. These low cost speakers are built to not be taken apart.

  • Erich Friebel
    Erich Friebel Mar 27, 2014

    That's what I figured. I saw some similar products at Staples for $30-50. Any suggestions for something decent that will last and have good sound quality without breaking the bank?

  •  Mike M
    Mike M Mar 27, 2014

    Any 2.1 system in the $40-$60 dollar range should be more than adequate. If you can, stay away from "Feature rich" systems as what you want is sound not gimmicks. Also, think about where the speakers are being used. 40-50 watts is good. If you can go to a store and try some out.

  • Robert Furuglyas Apr 07, 2014

    I had the crackling on my A-3640 set. I was able to clean the dial (poteniometer) with rubbing alcohol. I bet you can peel the bottom off that speaker to expose the guts of the controls. If you are attempting any repairs then make sure to unplug everything so you don't injure yourself or cause damage to other components. After I got mind taken apart, I dripped the alcohol into the dial housing then moved the dial back and forth a bunch of times. I then blew into the housing to evacuate the alcohol and dirt. Once it dried, I reassembled it and now the crackling is gone. If it still crackles, the poteniometer (dial) is bad either by defect or use. As for the sub not turning on, it sounds like bad capacitors. If you want to check the caps on the amp, once again make sure to unplug everything to avoid injury or damage. You should be able to get the face of the sub box off with some coaxing. Once removed you can then remove the speaker to have access from the front of the box. This will help while guiding the amp out the other side. To remove the amp you will need to peel off the shiny sticker with the port labels on the back. You can then remove the four screws on the corners. It should then be able to be carefully manuvered out the back of the sub enclosure. I suggest searching the internet for how to identify bad capacitors. Swollen tops, leaking fluid, split, etc. Age can also cause them to fail. I betting you have some bad power supply capacitors. If you are going to attempt replacing bad caps make sure to pay attention to thier ratings. You'll want to make sure to get the same uF rated capacitors. You can get same or slightly higher voltage but never lower. I know this because my 2.1 set isn't as easy to replace so I've been repairing it. I've replace the subwoofer itself with an 8" Audiobahn 250 watts. Also have plans to replace all the capacitors on the amp. Been 8 years of constant use and about time for some to fail. I opted to fix mine because an equivilant system would run me closer to $100 and why do that when I can fix it with upgrade parts for a lot less.


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Posted on Jan 02, 2017

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SOURCE: subwoofer cuts out

Its due to the damaged pin in which you r inserting the subwoofer pin!

Posted on Dec 08, 2007

  • 2 Answers

SOURCE: Subwoofer works - sound goes away after some time


Posted on Dec 31, 2008

  • 42 Answers

SOURCE: Unit was working for a

sorry, but from your description i dont think there is much help for your sub. unless its new and under warranty. that sounds very typical of a dead sub. i have had a bad run in with sony products just quiting only after a few years. i try to stay away from anything with the word sony on it. a short list of the sony products that i can rememdying only after a year or so cd boom box (3 of the same one) sony 19" tv, sony handi cam (video camera two weeks after warranty peroid), component cd player, alarm clock radio.... the list is longer but i will stop. sorry for your trouble.

Posted on Dec 24, 2010

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