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Buzzing squaking sound from speaker that i fixed

This youtube video shows the exact problem that i had with my subwoofer: http://www.youtube.com/watch?v=Uxr0X0kxVUY My solution was: So i had success fixing this problem with my bass cube which had the same problems as the video above. The problem was with the big 6800uf 50volt rated capacitors on the circuit board. its a simple fix. i bought the replacement capacitors off www.mouser.com. the mouser part number for the new capacitors i bought was: 647-UKW1H682MRD when you replace these capacitors make sure you connect them in the same direction as the original capacitors. easy fix, problem solved, sub works great now.

Posted by Anonymous on

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Anonymous

  • 3130 Answers

SOURCE: Is there any way to take these apart?

Is it a powered speaker? If not then if you know how to solder ,sure open her up and move around the wires while shes playing and see if you can duplicate the fault. If you dont know how to solder then take the unit in to be serviced as a loose connection inside a speaker can certainly blow out an amps output circuitry. Good Luck

Posted on Jun 26, 2006

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Anonymous

  • 1476 Answers

SOURCE: Is there any way to take these apart?

If there are no screws evident on the rear of the unit carefully remove the grill on the front. Usually they are just lightly glued on. Most quality speaker enclosures open from the front and the speaker can be taken out for access to the wiring inside. If you cannot find any way in from the front look for some sort of plug or cover over screws. This could be on the back or under the grill. Sometimes they are covered with plastic covers which match the surface. If you do not have access any of these ways this could be a sealed unit which is not made to take apart. Good luck.

Posted on Jul 12, 2006

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Anonymous

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SOURCE: Bass Cube 12 makes loud buzzing noise when turned on !

Hi Ok thanks. I cannot be 100 % sure about this without seeing it but it sounds alot like there is a power supply issue, either bridge rec or caps. Caps are very often very obvious. If you get into it and have a look at what is normally the 2 or 4 biggest capacitors at the start/power supply of the board and see if they are ok visibily. If they are bulged, (often they actually explode and leave paper residue) then those are what need to be replaced. Have a look and see.

If its the bridge rec, it could be 4 diodes, fairly large next to each other or a square component with 4 legs out. Need a meter to test, but i would start at caps first
All the best

Posted on Aug 05, 2009

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Hi Ok thanks. I cannot be 100 % sure about this without seeing it but it sounds alot like there is a power supply issue, either bridge rec or caps. Caps are very often very obvious. If you get into it and have a look at what is normally the 2 or 4 biggest capacitors at the start/power supply of the board and see if they are ok visibily. If they are bulged, (often they actually explode and leave paper residue) then those are what need to be replaced. Have a look and see.

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