I tried to use my speakers with my laptop and when i plugged in the accessory speaker into the powered speaker, there was a loud whining noise coming out of the accessory speaker. The powered speaker works ok by itself. Only when the accessory speaker is plugged in that the whining noise occurs. Please advise. Thanks
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As you stated in your question there are 3 3.5mm headphone jacks connected to the speakers. Green is for headphones, red is for microphone, and black is probably just a line in connector.
plug the green connector from the speakers into your headphone port on your laptop and it should work.
because the speakers are self powered and have a few adjustment knobs on them, you will have to tinker with the volume coming from the laptop and from the speakers, so you don't have distorted, scratchy sound from the speakers when playing music at loud levels.
my suggestions is turn the laptop volume down to a quater of the volume and then turn the speakers up, let the speakers do the hard work and not the laptop..
Possibly a bad cable or bad ground or bad outlet?. Easy solution, try a different outlet and see if the hum still exists. Also, make sure your speaker cables are NOT run parallel along with, or close to any power cables, Speaker wires can and will pick up AC "Humm" noise.
This is more likely a problem with your sound card than the speakers themselves. Next time it happens, try plugging in some headphones or other speakers into the same port on the computer. Most computer hardware is not designed for good ground isolation and digital artifacts can come through.
The other likely answer is a problem with the cables. Try wiggling the cables, especially near either end, and see if you can find a spot that makes the sound come and go. If there's a break in ground at a connector, or a short to ground in the cable, that can also cause unpleasant distortion in the speakers.
Now look at the back of your iMac. Around all the other wires and plugs, you should see 2 holes that this speaker plug will fit into. One of the holes has a headphone symbol and one has an output or speaker symbol. Plug it into that one and you should be good to go. You probably also need to plug the speakers into a normal outlet for power. And make sure you turn the volume up because new speakers usually come with it turned all the way down to avoid sudden loud noise when it's plugged in.
What sort of computer do you have? Is it a laptop or desktop? Many
laptops have this problem and it is quite widespread in laptops. The
crackling or humming noise could be a result of interference from the
mains power signal.
If it's a laptop, try running it on battery alone (take out the mains
power cord). My laptop has this kind of noise in speakers when running
on mains electrical supply, but it goes away like magic when I run it
A more long-term solution is to buy a 'Ground Loop Isolator' and insert
it between your computer and the speakers/earphones. They are quite
cheap and you could get it for under £10. It removes all static noise
and you'll hear crystal clear sound.
Were they ever loud? If they weren't (which is my guess - judging by the picture) is that they are low wattage which essentially means that they are not intended to be loud. They are most likely to be used as a small compact, low-noise speaker for a smal MP3 player where high (club-vloume) wattage/volume is needed. If they used to be loud check the volume control on your laptop and check each and every setting that there is. One stupid little setting could be a big difference. Audio Properties in the control pannel could be helpful but don't mess with those settings in the control pannel unless you are almost positive as to what they are and what they do. You could cause yourself a bigger problem. Remember that most laptop speaker outputs are actually for headphones and are not intended to go super-high as they are designed for headphones and not to hurt ears at high volumes. Hope this helps. If not try checking back with me. Best of luck. Bonne chance!
The built-in speaker amp or the volume switch may be going bad on you. A quick test is to disconnect the speaker set and replace it with a headphone or another working speaker set. If it behaves normally then the problem is in your original speakers, if not then you may have software driver issues or less likely an issue with the sound card. Let us know what you find out.