Question about Cyber Acoustics CA-3090 Computer Speakers

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Noise problem? The power light on the right speaker will rapidly flash on and off and get vibrating noise from speakers and sub almost sounds like static.

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Re: noise problem?

You have a short/open in the cable (power) intermit. Move the cable around and see if the problem gets worse. rewire or replace

Posted on Aug 24, 2007

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Altec lansing ada885

All of your speakers get power from your sub. The volume control may have failed or the connection to the sub may be loose or broken. The power light indicates only that primary power is getting to the sub; the amplifier ICs may have failed. It will be necessary to open up the sub (if possible) to find out what failed.

Nov 12, 2012 | Altec Lansing Computer Speakers

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Altec Lansing GT5051, I'm hearing a humming noise from the speakers as soon as I turn them on. The humming noise is heard even if speakers are not connected to source.If I try and play music with...

Sounds like a problem in the speakers' internal power supply, maybe a faulty capacitor. Speakers need to be looked at by a technician, or replaced with a new set.

Jun 05, 2011 | Altec Lansing GT5051 Computer Speakers

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My Logitech Z523 Speakers make a loud humming noise when plugged into my PC. When i plug it into my phone or laptop there is no humming noise. Sometimes there is a fuzzy crackling sound when it is not...

Mine did the same thing then I found the solution by accident. After reading a post about moving the sub to different positions and making sure connections were tight to the sub , I loosened the right speaker connection screws to the sub and noticed the humming stopped completely . I know it sounds crazy but it worked for me.

Nov 30, 2010 | Logitech Z523 2 Speakers

3 Answers

Two speakers hum noise

Very doubtful that hum issue is ground potential difference from multiple power outlets as power cord is not grounding type (it is transformer isolated). I do agree that it is good practice to connect all audio equipment to common power strip though, especially with pro sound. Check the audio cords connecting your speakers to the coumputer sound card: 1) Make sure they are connected to the correct jacks and plugged in all the way, 2) wipe the connectors off with a clean paper towel wetted with a smidge of WD-40, 3) replace cords if all else fails. I have also seen solder joints fail on the power supply capacitors (due to vibration) causing hum -- but leave this repair to an electronics technician due to dangerous voltages.

Sep 25, 2010 | Altec Lansing AVS 500 Computer Speakers

1 Answer

When I do a noise test I get no sound out of the woofer. I am getting no bass from the woofer

These are "decent" quality 5.1 speakers, usually without any trouble.

Now, to your question, you will not have 5.1 "surround sound" effect with standard sound card, standard sound card will provide only three speakers sound, rear speakers will not connect but bass should be hear. Please switvh power off to the speakers and disconnect all cables from spaekers and connect them for best quality as follows:

1. Audio from PC, orange, green and black connecting to front right speaker.
2. DB15 (D-SUB) connecting to subwoofer, subwoofer is serving as mixer, power board, amplifier and connection box, control pod is just cable connection to it
3. Connect all cables to they respective speakers

Establish location of the speakers, from experience, in ideal world:

1. Sub should be on about your knee level or below, about twice your hight from you.
2. Front centre speaker should be about some distance as sub or bit closer on front and slightly above your head.
3. Front left and right speakers should be at about 45degree from your axis, at distance of about 1.5 your hight and on the level of your head or slightly below.
4. Rear left and right speakers should be located similiary to front speakers, on they level or slightly above them, again, about 45degree from your axis.

Location of the speakers is more actually important than it is assumed, total sound immersion is not possible without proper speakers installation. Head in these instruction meant a location of your head while you are listening to your music or recording not while you are standing.

In reality... hang them higher than your head in four corners of your room, front centre higher than sides, woofer lower than sides and below front centre, if they interfere with each other - increase the distance. I hate reality...

After speakers are connected:
1. Plug power cord in,
2. Turn all sounds totally down, including subwoofer
3. Increase sound on PC to maximum, let play any known to you music, tufftuff or bach, whatever, do not bother with metallica as you cannot discredit on it correct levels.
4. Increase subwoofer volume, holding one hand on the front of the grill till you get some vibration from it
5. Increase sound on centre speaker, then on sides front speakers till you achieve equality of the sound
6. Decrease sound volume on your PC to about 60% - 70%
7. Increse subwoofer volume till you feel sound on your hand in front of the speaker.
8. Increase sound volume on front/rear speakers as required.

Hope that short intro solved all your speaker problems, enjoy! if you require any additional help, do not hesitate to answer to this post with request.

Aug 12, 2010 | Logitech G51 5.1 Multimedia Surround Sound...

1 Answer

Lights are on in the small speakers but no sound is produced...there is a short scratchy sound when I juggle the speker wire from sub woofer. I hooked speakers up to a different MAC and now am trying to...

Hi there , the green light just means its getting Power, it doesnt mean that its going to give sound, It could be that you dont have Drivers installed for your Sound card which is causing it too not get sound , but when it makes that static noise , its the Wire just causing Static with the Sub , just means its getting power , The + and - sign is the volume control ...Try see if you can turn it louder with the + . maybe it is low enough not too hear.....Hope this helped Bud
Happy new year.

Jan 03, 2010 | JBL CREATURE II Computer Speakers

3 Answers

Green light on speakers and sub. No sound - only hissing noise

open volume control & remove check from mute button.

start-program-acessories-entertainment-volume control.

Sep 17, 2009 | Computer Speakers

1 Answer

Klipsh Promedia 2.1

I was face the same problem 2 year's ago.This problem occur when you move the speaker's here and that time speaker's wire diconnected in inside...please check the whole wire by electricians for where exactly it is disconnected...

Sep 10, 2006 | HP ProMedia Computer Speakers

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