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Subwoofers have a humming noise - Rockford Fosgate Car Audio & Video

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You can purchase a filter at any authorized auto audio store and also try a high resistor spark plug in the vehicle such as bosch platinum plugs.

Posted on Apr 05, 2011

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Klh powered subwoofer model ASW10-120B... when you plug in to power... it makes a loud buzzing/humming noise


I would check the caps on the power supply. They are rather large electrolytic capacitors that will look like they burst and/or leaking. When these die, the caps ground and the sub will make a loud buzzing sound. If you are handy with a soldering iron you can replace them yourself. Replace them with the same voltage or a little bigger and same with the size.

If the cap. says 16v 4700pF on it, for example, a 20v 5300pF or a 16v 6200mF cap. will work for this application.

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Jan 05, 2016 | Audio Players & Recorders

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My acoustic research hd510 has a loud humming noise


check your audio line in connection, either L or R signal line floating may also cause humming noise. Sub woofer usually very sensitive. If your audio input not connected, do you still hear humming noise? in actual you should not hear such noise, unless volume at max then it is possible to hear little.

Apr 03, 2012 | Acoustic Research HD510 System

1 Answer

Woofer maiking a loud noise


be more specific, what type of noise? Humming noise or cracking noise or pop noise? can you still hear noise without signal input line connected?

Mar 05, 2012 | Acoustic Research 308 HO Speaker

1 Answer

I have a pair of JM lab Electra 905 speakers, running through a DNM amp and power amps. When powered up, the left speaker makes a very loud humming noise. This has happened recently. I haven't changed...


Hello
Switch on your amp, keep its volue down to extreme low, and listen if there is still hum through the left channel or not. If still there is hum, the left side power amplifier section inside the amp;ifier is faulty. If htere is no hum at this state, hum enters thorugh the audio input terminal, and the input wires must be checked for open sheild connection. OK.

Apr 10, 2011 | Jmlab Electra 905 Speaker

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Loud humming noise


this may be result of blown capacitor - have it analyzed by applying strong magnet over the inside speaker , if humming persists, then its not blown capacitor -- the capacitor stores energy, and if that energy is lossed an out in the airwaves, thats the humming effect

Oct 15, 2010 | Cambridge Soundworks BassCube 12 Speaker

1 Answer

Humming noise when woofer turned on


check the NPN and PNP transistor output maybe shorted.....

Jul 07, 2009 | PSB Image Sub Sonic 6i Subwoofer

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