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We just installed a ps12 proficient subwoofer a couple of weeks ago. suddenly we hear humming noise as soon as the sub turns on. what could be the problem? and how do i fix it? jack

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4 Answers

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

2 Answers

Why is there low humming in the receiver sub channel(only?)


Sounds like a shorted capacitor in the sub out circuit.

May 04, 2015 | RCA Audio Players & Recorders

1 Answer

Why do my desktop computer speakers have a humming noise all of a sudden? They were turned off for a couple of days .


Check the speaker cables for connectivity. Be sure to securely plug in the stereo jack/s at the back of your pc

Jul 21, 2014 | Logitech Audio Players & Recorders

1 Answer

The subwoofer output on my Kenwood VR-606 has suddenly stopped working. I have tried the "setup" several times, turning the subwoofer off and back on. Also, when I first power up the system, it emits a low...


It sounds like the problem is not with your VR-606. If you hear a hum from the sub, the problem is more likely to be in the sub's built-in power amplifier. However, it is worth resetting the amplifier to factory presets. To do this, unplug the power cable from the mains supply and reconnect whilst holding down the power on/standby key. If the hum persists, connect any powered speaker to the sub-out socket, power on and listen for the hum. If no hum then suspect the powered sub amp. Turn the sub on with no connection to the Kenwood VR-606. If hum persists, the sub has a problem and will need to be replaced or repaired. By the way, you said there is a low frequency hum through the 'speakers' for about 30 mins. Is that all speakers or just the sub? Hope this helps.
Cheers, Don.

Jul 06, 2014 | Kenwood VR-606 Receiver

1 Answer

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

2 Answers

Tvee 20 subwoofer has distinct hum noise. Any advise?


1.Check the input cable or change it and see the result.
2.Test the subwoofer to a computer.

May 29, 2011 | Boston Acoustics TVee Model Two TV...

1 Answer

I have a set of subwoofers in my car powered by an amp with capacitor all 3 years old. A couple weeks ago I encountered a problem where my system will suddenly emit a weird loud humming noise (similar to...


try taking out the capacitor and wire the amp up with out it. it sounds like the cap is back feeding or discharging voltage when it should not be . if you reinstall the amp with out the cap and noise goes away buy a new cap or do away with it .

Oct 29, 2010 | Rockford Fosgate T600-2 Car Audio...

2 Answers

Sunfire Subwoofer 110 Noise on input plugin


A few more questions-
Does the sub hum without anything plugged into it except for power? If it makes a real loud hum almost a squeal then I think the rca cable between the receiver and the sub is dead shorted and needs to be replaced. If it's more of a low level hum, then it's a ground hum caused by many things, ie........the receiver and the sub being on different power circuits in the house.......sometimes diconnecting the cable tv feed as it enters the room while the sub is connected and humming to see if it stops........the easy fix sometimes is using a 3 to 2 prong ac adapter but lifting the ground on such a powerful amp could be a fire hazard.

Sep 25, 2008 | Sunfire True Sub MK II Subwoofer

2 Answers

Sony Active Subwoofer noise


The circuit that should be turning the sub on and off based upon the presence of an audio signal is not working correctly and the sub is trying to reproduce 60 cycle hum. The unit needs service.
Dan

Mar 09, 2008 | Audio Players & Recorders

1 Answer

Loud noise from subwoofer on standby or while playing music


Hi There, Please advise us what happens when you turn off the sub woofer is the hum still there....??

From YUBEUT.

Nov 27, 2007 | Teac CD-X8 CD Shelf System

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