Question about M-Audio BX5a Speaker

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One of my speakers has a constant hum and an intermittent crackle/hiss while music playing. Please help!

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Capacitor problem. Open up the case and unplug the cords from the board; if you see any traces of "brown sludge" coming from the caps then this is likely the problem.
I just had this problem myself -- went to the electronic components store and bought 4 new capacitors, a soldering iron, solder ****** and some solder for $25 CAD total, replaced the 4 of them myself in an hour having no previous experience doing such things before, and now the speakers sound better than I think they ever did.

Posted on Nov 28, 2011

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Swap speakers from the output of the receiver or amplifier. If you hear it from the same speaker, then the speaker is bad.

Posted on Nov 10, 2010

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if no sound from both speakers check fuse,
if some hissing or humming on full volume then its a fault in oscilator section
if there is no hiss or hum at full volume its a breakage in the wires of speakers, if one speaker is ok its aagain a wire open problem in out put section
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1 Answer

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Hi Nate41
you won't do anithyng
may be is a bad resistor inside, that get hot and probably start to do this problem. try disconecting the speakers, and move to other place, more cooler, and try to see if you don't get the hissing and humming sound now. sometimes dust and hot places get to this problem.
beside that, may be a path to a problem.

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