Question about Harman Kardon SoundSticks II Computer Speakers

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Very loud buzzing from Sub and speakers

Many topics on this of course, but the buzzing from the sub is frighteningly loud. Usually rotating the 3.5mm plug on the computer works, but recently its almost impossible to stop it. More scary is that when trying to plug it in the back of my new iMac and my hand touches the back of it I can feel what I can only describe as 'power" running through it and into me. Like a bad earth or something? Any advice?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Benimur
  • 6966 Answers

SOURCE: Harman Kardon 595

Hi, probably two things that can go dead, 1) the woofer itself and/or 2) the amplifier. I will rule out poser supply cos the other speakers are working. Normally they have a separate amplifier than that of the woofer. If you are comfortable working with a soldering iron and a multi tester, after unplugging from the mains, then you open the enclosure and check the continuity of woofer which should read between 4-8 ohms, if it is open or no reading, replace just 2 wires/terminals involve with 3 or 4 screws. If the woofer reads a continuity, then it is the amp which normally is just a single power IC attached to an aluminum heatsink. In some instances, it may be a power transistor pair. In any case you have to be familiar with component level repair. Otherwise, you are probably better off asking a qualified service personnel to do the repair job. Hope this be of some help. Pls post how things turn up. Regards.

Posted on Apr 26, 2007

  • 1 Answer

SOURCE: Speakers just stopped working

take the speakers apart and it could be something as simple as a loose wire, that was what it was for me thankfully!!!!!!

Posted on Aug 29, 2007

  • 2 Answers

SOURCE: Sound sticks II

My problem is fixed now. I plugged the speakers into the earphone socket. There was no immediate effect just silence. I twiddled the control on the bass unit, played with the volume controls on the sticks. Then I realised the sound was back with the external speakers not the internal ones. It was as though the Harman Kardon system was re-booting itself. Very weird.

Posted on Dec 20, 2007

SOURCE: Speakers Make a Very Loud Noise that Increases

speaker amplifier chip may leaky or damage
you are using improper sound driver
check driver status in your computer device manager or just typing dxdiag on run in start menu, check status of sound driver installation

Posted on Jan 17, 2008

  • 6 Answers

SOURCE: 1 year old iMac speaker buzzes and sounds distorted

you have to remember that electronics can have interference from wireless signals and etc. try moving your computer to different places in your house

Posted on Jan 21, 2010

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1 Answer

Sub Speaker giving intermittent loud crackling and sharp loud popping sounds even with main volume control turned off. Crackling sound can be reduced by turning sub volume control off.


It may be the control itself too. In time, these controls can get dust build up inside it. There are volume control spray cleaners available from Radio Shack or other electronic parts stores. The cheat on cleaning the control is to just rotate it from stop to stop as many times as it takes to clear the noise.

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Your speaker may be blown. It doesn't have to be fiscally blown maybe you just burned or disaligned the coil/s try a different sub or check your amp it could be blown. Defective parts in an amp could emit weird sounds to your sub.

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most of the time this is caused by a bad ground. Check all cabling from and to the right side satellite and the sub woofer.

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Want to connect pc speakers and subwoofer to lg37lc55 tv unfortunaly it doesnt have an earphone 3.5 connection point. My other smaller tv does, the speakers and subwoofer consist of a white and red audio...


Hello,
Your TV should have an AUDIO OUTPUT other than optic..at least " Headphones" output..
You can connect TV audio output with a RCA cable.
white and red audio jack....
since SUB has both RCA and "3,5mm Headphone female Jack"..here are the options;
** you need to buy a cable one end 3,5mm MALE headphone jack and the other end 2xRCA stereo (or 1x RCA for mono or you may need "Y cable " ) to be connected to your TV...
** or 2x RCA
white and red audio jack and connect from your TV..
**" "Headphones" output to SUB with 3,5 male-to-male cable ( the least recommended)
And you need to connect front,centre and rear speakers to your SUB as well...
Take care and if it succeeds please Remember to rate/vote and give me 4 Thumbs Up
for Helping out the Community :)

Hope this helps!

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Sub woofer buzzes all the time, do I have to replace the speaker or can this be repaired?


ur sub wont buzz due to bad speaker. either u have a faulty preamp or power amp. yes it can be repaired and will not cost much. if it is loud and annoying, get it repaired. sometimes subs emit low hum when powered up. this is the way the are desinged.

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Select Start > (right click) My Computer > Manage
In the Management window select > Device Manager
Next to Sound, Video and Game Controllers click the + sign
A yellow triangle will signify a problem so if one is present, right-click that device and select Properties
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1 Answer

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yes. A good idea. Kill power to the sub, then unplug and remove everything from the sub. go ahead and plug it in again and check for buzzzz.
That is test one. if you have buzz still, its the sub assembly. bad luck, but not impossible. If the buzz is gone its one of the signals to the sub. They can produce a buzzz without any signal coming from your stereo equipment. Replace the feed line, enjoy! BTW...Kef sure does sound clean. good choice.

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1 Answer

Subwoofer noise


You didn't say is your sub active or passive.If its active first check signal cables from theater system,power line of the sub, it has to be the same phase as the system.If its passive take a voltmeter disconnect the sub from the system and measure for DC voltage on the SUB output on the system when its OFF.If DC voltage is present your amp is damaged.It can also be that the preamp circuit for the sub doesn't mute the input when unit is on stand by and you hear frequency of your power supply (50-60Hz) on the sub

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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

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Bad connections or faulty wires check the wires and the connection of the wires, usually the buzz is a bad earth

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