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Subwoofer makes strange sounds

When subwoofer is turned on it starts making a loud noise with or without being being connected to amplifier

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: subwoofer clicking noise

Hi I am afraid it sounds like exactly the same problem I had, Namely the PSU(power suplly unit) is failing, This is a common fault (by reading loads of forums) I contacted KEF today about mine and they say the probably wont be able to source any more spares(due to so many having thuis problem no doubt) So I would suggest contacting the people you bought it from,Under the consumer protection act you should expect an electrical item to "Last a reasonable amount of time" .Mine is 3 years old and I do not consider this to be a long period so kick up and you should be entitled to a repair or at worst a partial refund.Look here basically the same Sub.
http://www.avforums.com/forums/showthread.php?t=436234&highlight=kef

Posted on Apr 29, 2008

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SOURCE: Loud humming noise from subwoofer

if it is a powered sub you should lift the ground. you can do this by adding a three prong to two prong adapter. you know, like when you go to plug something in and the cord your plugging in has three prongs and the outlet your plugging in to only has two. it doesn't have the hole for the ground so you go get a little grey adapter that has three holes on one side and two prongs or tabs on the other.if that doesn't take the hum out (actually, is keeping the hum from getting in) you have a problem with the amplifier.

Posted on Jan 27, 2007

  • 238 Answers

SOURCE: No Output Subwoofer

hi, ya , some recievers have its setup where u have to enable the sub out,, check the menu carefully, also the player menu if the sub is on or off, let me know..

Posted on Jan 12, 2008

  • 1 Answer

SOURCE: subwoofer makes loud popping crackle intermittently

im having the exact same problem thinking it was the amp i rigged up a different driver,the amp was fine.i knew the driver wasnt gone and after some looking and testing i got it down to wire mesh(i think a dust sheild,something)inside which was slightly rubbing on the coil,it worked fine loud when it was warm but cold there was bursts of bad feed back noises.

Posted on Mar 14, 2008

marsrover
  • 682 Answers

SOURCE: converting 2 channel amplifier to 2.1 amplifier

it is not availlable to do such convertion.

Posted on Jul 08, 2008

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Makes large thumping/chirping noise when turned on. Its not even connected to the receiver


Since you have said the speakers make this sound when "turned on", I'm going to assume there's some form of power amplifier attached (internal, external or otherwise). Based on the minimal information provided here, this simply sounds like the normal reaction of a speaker when the amplifier is turned on. In short, an audio speaker is a type of "transducer" and when power is applied (thru some form of amplifier), the cone reacts to the power surge and causes a thump, pop or other noise. Turn on your TV for example and you'll usually hear a small pop from the speakers...and a larger/more powerful amplifier is likely to make a louder noise. Without further information, in most cases this is quite normal.

Assuming there is an external power amplifier, my advice would be to turn the volume on the amp (regardless of whether there's a receiver connected) to 0 before turning the power on. If it still makes such a noise, it's possible the volume control of the amp may require cleaning.

Good Luck!

Apr 01, 2016 | Audio Players & Recorders

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

1 Answer

The subwoofer starts to make a loud thumping sound


Remove the signal source and power it on to see if the problem occurs without any input signal. The problem could be in the receiver and not the sub

Dec 08, 2013 | Cerwin Vega Avs-sub8 150 Watt Amplified...

1 Answer

I have atomic A-8 subwoofer and philips FR740 receiver. when i turn the amplifier and the subwoofer "on", the subwoofer starts to hum loudly and it is wery annoying. i made all the connections...


The symptom sounds like an open signal shield somewhere and the cable is acting like an antenna for airborne electrical noise.

Disconnect the RCA cable at the sub. Is it still humming? NO? Problem is external to it. YES? Internal. Broken ground somewhere.

Recheck all connections making sure to twist the RCA head as you install it so oxides will be worn off.

Consider what may have changed in the environment regarding electrical devices, motors, magnetic sources. Ensure signal and speaker wires as ar not running are as non-parallel to any power cords as practicable.

Apr 23, 2011 | Eltax Atomic A-8.2 Subwoofer

1 Answer

My sub make a strange noise. It doesen't work anymore.Tks.


Strange noises can come from your amplifier or the sub itself. The most likely cause of the strange noise is the speaker just before it dies! If you have been using the sub-woofer at high volume levels then you probably have damaged it. Try testing the sub-woofer using a multimeter(on ohms setting) it should give you a reading from 8 to 4 ohms. Sometimes they may give readings as low as 1 ohm. When testing the speaker/sub you should hear a soft scratchy, thumping or clicking sound. This indicates that the speaker may still be working. If you don't have a multimeter try a 1.5 volt battery (say a AA), DONT USE HIGHER VOLTAGE BATTERIES they may damage the speaker! You will hear a clicking, scratching etc sound from the speaker which may indicate that it is still OK. If the speaker seems OK the problem may be in the amplifier, which I suggest you bring to a professional repairer. When buying speakers and amplifiers make sure the power handling of the speaker is equal to or greater than the amplifier output power. This should stop speakers from getting damaged. Make sure the speaker and amplifier specifications are rated in the same manner ie RMS PMPO Peak. A 100 Watt PMPO speaker will not survive the output of a 100Watt RMS amplifier!

Feb 08, 2011 | Audio Players & Recorders

1 Answer

Hi, some days ago my little daughter messed up with all possible buttons on the front of the receiver and the remote also, so in result I have the follwoing issues: - when I try to set the speakers with...


erm.... this is a strange one, the popping very loud sounds is the amplifiers turning on and lookinf for the input, so its possible the input method has been altered from original settings i would try fixing this first, im sorry i cant be any more help or any help at all to be honest lol, worst case scenario put your daughter in front of it and let her play away again. good luck : )

Jan 31, 2011 | Denon AVR-1508 Receiver

1 Answer

Subwoofers Creating Independent Noise


Sounds like your RCA's are near your power & ground wires. I would run your RCA''s on the other side or as far away from the power wire as possibly. Sounds like your getting the infamous alternator whine. If none of the above work you can get a in line noise filter to filter out that noise. RCA's can pick up noise when their around anything that has alot of current running through it....Hope this helps

Mar 28, 2010 | Boss AUDIO SYSTEMS D13002 Car Audio...

1 Answer

JBL PB10 subwoofer, it makes a loud burp noise when it comes on.


In the industry - It is called "Turn-On Thump".

There are some manufacturers that eliminate components like noise filters on enry level lines to save money.

There is no way to lessen this noise without ripping the amplifier apart and having a technical knowledge of the way amplifiers work. It would involve hard-wiring a slow charge capacitor in the turn on line so it gradually builds power instead of getting it all at once.

Thanks for using FixYa - a FixYa rating is appreciated!!

Feb 10, 2009 | JBL PB10 Subwoofer

1 Answer

Amplifier for my velodyne cht-8 is making noises



Yes the amp section can be peplaced.

Call Velodyne, the amps are not that expensive.

Jan 01, 2009 | Velodyne CHT-8 Subwoofer

1 Answer

Guitar amplifier sound


HI thecross

What model Marshall have you got?

regards
robotek

Jun 04, 2008 | Audio Players & Recorders

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