Will my speakers damage my LCD display?

[ricster2000]

I used to own a CRT, and whenever i moved the speaker bass/subwoofer thing with the volume control toward it, it would create purple tint around that edge of the screen, the effect being stronger the closer they are together. I'm assuming this has something to do with the electromagnetic interference or something being emitted from the speaker unit. I now have an LCD monitor, and I'm just wondering whether the speakers would damage the monitor in the long term. The two things are placed next to each other right now, and there does not appear to be any negative effects, but will it slowly damage the monitor?

 

[YOyoYOhowsDAjello]

Shouldn't be a problem afaik.

 

[Sc4freak]

The reason for the distortion in your CRT is because the speaker uses a magnet to generate sound. The magnetic field distorts the image, and prolonged exposure can damage your monitor.

LCD's work differently - magnetic fields have no effect on it like they do to a CRT.

 

[Wreckage]

Many LCD's come with speakers attached to them.

 

[ricster2000]

Cool, thanks for the info guys. Wreckage, i didnt meant the actual speakers caused the distortion, i meant the base unit that the speakers were connected to, the one with the volume knob, base knob, and the bass speakers (or is it a subwoofer? I should really learn some vocabulary) Guess i can keep my base unit where it is then, didnt want to alter my desk setup

 

[ElFenix]

Originally posted by: ricster2000
Cool, thanks for the info guys. Wreckage, i didnt meant the actual speakers caused the distortion, i meant the base unit that the speakers were connected to, the one with the volume knob, base knob, and the bass speakers (or is it a subwoofer? I should really learn some vocabulary) Guess i can keep my base unit where it is then, didnt want to alter my desk setup

if its a big heavy unit then that is your bass module.

it really can't properly be called a subwoofer because the speaker inside *IS* a woofer, and probably not a particularly large one. anyway, unless the speaker is shielded the magnetic field is projecting out.

 

[YOyoYOhowsDAjello]

Originally posted by: ricster2000
Cool, thanks for the info guys. Wreckage, i didnt meant the actual speakers caused the distortion, i meant the base unit that the speakers were connected to, the one with the volume knob, base knob, and the bass speakers (or is it a subwoofer? I should really learn some vocabulary) Guess i can keep my base unit where it is then, didnt want to alter my desk setup

I think he just meant to say that manufacturers already have magnets in close proximity to LCDs in their designs. A "subwoofer" is just a bigger more powerful version of the same thing a speaker does so if speakers are fine, a sub shouldn't be different.

Although I've used CRT monitors with speakers built in too and that logic doesn't hold for them.

You can call the bass unit a subwoofer if you want to. There are several definitions of subwoofer like
1. a dedicated unit that produces the lowest frequencies a system is playing
2. a dedicated unit with an 8" or larger driver for producing bass
3. a dedicated unit that can produce frequencies of 20hz and lower
4. a dedicated unit that can produce frequencies of 20hz and lower at -3dB or better
etc.

 

[xtknight]

CRTs can be affected by magnets but LCDs cannot.

That's what happened when I put a walkie-talkie near my CRT, the picture got all discolored IIRC. I think it's just the magnet speaker in the walkie-talkie and not radio waves that affect it, but I'm not sure.