Speakers placement with tv, DVD player, etc (interferances?)

[DVinci]

I will post here since it involves PC speakers.

Someone told me PC speakers shouldn't be put on a television because they will interfere with the each other or something. Must have to do with their magnets? That's my guess. I put my Logitech speakers (X-230) on my DVD player which is on my TV (a standard TV). The subwoofer (X-230) is under it, in the stand. Is this kind of setup OK or would there be some kind of interferances happening? Including if: a) my tv is on for hours with the speakers and dvd player off, or b) everything is turned off? [EDIT] or c) speakers are on, with tv and dvd player off?

Also, the room's heater and airconditioner are relatively close. (X-230's manual says to keep everything away from heat sources. So this winter, I'll be moving these things around)

Thanks for helping...

[Richard_G]

You shouldn't put normal speakers next to a TV because the magnets in them will affect the TV picture. As PC speakers are often placed next to a monitor, they have shielded magnets so don't cause a problem. You will know if they are affecting the picture as the colours on the TV will be very odd with green and purple casts.

[DVinci]

You shouldn't put normal speakers next to a TV because the magnets in them will affect the TV picture. As PC speakers are often placed next to a monitor, they have shielded magnets so don't cause a problem. You will know if they are affecting the picture as the colours on the TV will be very odd with green and purple casts.

Is there something I can put the speakers on to break that interferance?

[fLYtRap]

Yes, try to keep speakers as far away from TV as possible. It also depend how big are the speakers. I have 5 very large speakers (not PC speakers - to be exact Polk Audio series).
The center speaker I placed about 1ft (30cm) under the TV. Front speakers about 5ft (1.5m) from the TV and sometimes I can see small discolorations so I know that they interfere with the TV. Especially that each of those 3 speakers have built in subwoofer. If you are placing computer speakers you shoudn't have much interference.

[Xylob the Destroyer]

when people see that their center channel or PC speakers are "shielded", they assume that there is a "shield" or some type of lining inside their speaker cabinet/case.
That's not the way it works. Shielded speakers actually have a specially designed magnet.
You can build a shield to put between your speaker and your monitor/TV, but it is expensive as hell. There are very few materials that will "block" magnetic fields. Modifying the speakers by yourself aint' gonna happen. Distance is your best option.
If you absolutley have to have your speakers right next to/on top of your video display, you'd be better off buying new speakers that are shielded..... Or an LCD I suppose, but I'm still not impressed with the picture quality and black levels.

[ricoman]

It depends on the speakers and the TV. Older speakers with large magnets will affect the picture on analog TVs. I have a great set of old Yamaha speakers that are unshielded with 12" woofers and a huge magnet, and this did affect my old 32" Sony TV. I thought my picture tube was going. When I moved the speakers the affect was lessened so I changed speakers for a while and the problem went away. However, when I bought a 50" Sony LCD rear projection HDTV, I was able to use my beautiful Yamahas again with no affect. I don't know if plasma is different but no problem with LCD TVs. I believe the problem is only with tube TVs.

[DVinci]

I will thus keep my speakers at a distance from the tv, thanks for the help !