Question about Logitech X-220 Computer Speakers

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Feedback? when the volume on the sub is turned up enough i get a constant noise from it. im pretty sure its feedback, but i have tried moving the sub around and i get the same problem. feedback is the only thing i can think of that is making this noise though, how do i stop it

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  • philar1012 Oct 22, 2008

    its was the mics playback volume, nevermind

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Are these speakers that you have to plug up into a wall outlet. If so, the noise you here is the electricity flowing through the speakers as sound is made. If you turn the sound down on the sub and turn it up on what you are trying to listen to, then you can reduce the backround noise.

Posted on Oct 22, 2008

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1 Answer

Can not get it to work. Im pretty tech savvy..it makes feedback noise constantly, regardless of mode.


A bad ground connection?. Try tightening the nut on the phono plug first. You can pull out that section where the cable hooks into and visually check the solder connections.

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Subwoofer turns on and is hooked up, but no sound.


The signal don't seems to be present to the sub input.
Try change the wire betwen the audio system and the subwoofer.
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I have 2 l7 kicker with a 2000 watt amp not really a good brand though..sometimes the subs work perfekt but sometimes they dnt work as the way they suppose to sound they sound really weak n when im driving...


OK-3 issues here but you already know one lol-you bought a substandard amp for some bad *** power hungry subs---thats your first issue :)

Check the ground for the AMP it shouldn't be any longer than 12" from the amp to its grounding point-Any longer than that and several issues can happen, like poor power to the amp, feedback (winding noise over the speakers, usually changes pitch or frequency with the engines rpm's), intermitant substandard sound (your experiancing this) and coil bounce (your subs move in and out producing little to no sound, you are experiancing this as well)

The same issues can come from the amp not having enough constant power to sustain the subs when they hit repeditivly, to fix this you need to buy a cap and add it to your system- A cap quickly charges using the battery, and supplies the extra umph your amp needs so it can push the subs without starving itself. With the subs you have I recommend a 1.5 to 3 fared capasator

Jan 31, 2010 | Car Audio & Video

1 Answer

I have a fairly good sound system in my jeep cherokee, new speakers, deck, new battery, rca cables, and a new box for my subs. But recently i've been dealing with some problems. i've had my amp grounded...


there are really only 2 causes for this.

  1. grounds. Make sure the grounds are clean and tight and all paint and dirt was removed before they were fastened.
  2. Your alternator is starting to go bad.
I would lean toward the grounding problem as you have said you just changed them. Also make sure the grounds are as short as possible.

Dec 24, 2009 | Car Audio & Video

1 Answer

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you need an noise filter in line. It's been a few years since I've had a system but I had the same problem. High power amps like the one you have can actually pick up on the electric pulses from your ignition system. I think I got mine at walmart, or auto zone, somewhere like that. Their pretty cheap too. I don't remember how its hooked up, but If you know how to hook and amp up, this should be no problem.

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1 Answer

Basicly my speakers were working fine, my subs were working fine but everytime i was turning my volume up to a certain level i would lose all base and all noise from the subs in my boot, so i turned it...


The amp should always light up showing you that it is powered and there will also be a red light that will light up if theres something wrong.Sounds like maybe the hot wire that goes to the amp isnt big enough to give the amp enough power.Check your positive wire and ground wire for tightness and make sure hot wire supply is big enough and also the ground wire is big enough and has a good ground.I hope this Helps you.Have A great day..

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is it the car vibrating or the sub making the noise ? if its the sub making the noise check all the screws holding in the sub and make sure they are tight or make sure nothing got sucked into your box if it is the car making the noise try using dyna mat to help stop the noise also check the surround on the sub and make sure there is no seperation of the surround from the cone

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1 Answer

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There is a problem wwith teh power supply or the amp section. Does the noise remain constant or does it vary in volume? The sub should have a level control, does the noise vary with that control?
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1 Answer

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hi wfj1310,
that feedback comes from the distance between the mic and the speakers only. Low the record level from the mic and make the distance bigger.

it makes feedback with any speaker, not only with woofer :-/

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Feedback/maxing out speakers.....


starting from amp,what is the rca connected directly to. headunit or adoption?

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