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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  • helpmetooplz Mar 05, 2008

    i have the same problem with the noise. i can't solve it with the suggested solution. any other suggestions?



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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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I have the Klipsch Sub-10 Subwoofer, and it no longer plays music. Now it hums (vibrates constant) and corresponds (louder or softer) with volume control. Light is home but no one home situation. V

Does the subwoofer have the same hum when the input cables have been unplugged? Many input cables use very fine conductors, which often fail. A bad cable will often introduce a hum and prevent a signal from getting through. If the noise is still present without the input cable(s) connected, then repair options are limited. No schematics are available. There's a daughterboard that has been available, but its failure usually causes the system to die (short-circuit). The cost to repair the amplifier may be close to the cost to replace the entire sub.

Sep 14, 2014 | Klipsch Synergy Sub-10 Subwoofer Speaker

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Hi i have a bnps102 subwoofer system along with a pyle 1400 watt amp. my amp is getting power to it hence the green light lighting up and the subs sounded great but last week during a song they both...

You are right about the scratching sound meaning the speaker is blown. The other one by it not playing it could mean the voice coils in it are blown or burnt.The safest way to check the speaker is to connect it to a standard 9 volt battery and listen for a popping noise when you make the connection and look the see if the cone stands up as long as the connection is made n returns to normal and no noises when disconnected from the 9 volt battery. To test this while the sub is plugged in to the amp but out of the box move the cone as far in and as far out as it will go. If it comes on while u hold it on either one of these positions but when released it goes back to not playing then the coils in it are blown or burnt and is no longer any good. As for selling the box its on you, aim anywhere from 2/3 to 1/2 the price you paid for it minus the speakers.

Aug 22, 2011 | Pyramid Subwoofer Box Dual 10" 1000w ...

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...

4 Answers

JBL PB10 subwoofer sounds distorted and lights on the front flash

More likely to be the Class D power amp module, but you should look through the service manual to make sure all the parts are installed correctly. My PB10 AMP module went out and you cannot get one anymore.

Nov 10, 2009 | JBL PB10 Subwoofer

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 | Audio Players & Recorders

1 Answer

Blown speaker?????

just gently push on the sub if it makes a noise like a grindin sound its blown.if it dont glue the center back on

Feb 25, 2008 | AudioBahn AW1251 Car Subwoofer

1 Answer

Sub woofer flashing red and green

sir,,i think there is something wrong with the connections or the cross over,,,kindly check it out or mjaybe the cone of ur speaker is damage,,,hope too help you thnkss??

Jan 27, 2008 | Kenwood SW36HT Subwoofer

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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