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As my question states, can I place a magnetically shielded speaker (it's a center channel fullrange, rated for more than 10 watts) and be safe with putting it in my PC (and avoiding shorts), and using it for music, by running it off of my sound card?

My sound card is the Creative CT4810 (It's identified as Sound Blaster PCI but Googling the model number shows the Vibra 128), with the jumpers set for speaker out (a TDA1517 2x6W amplifier on the sound card).

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    Magnetic shielding would not be needed, unless you use floppies, but I would be concerned about vibrations jiggling RAM modules loose. Also, most PC cases make poor loudspeaker enclosures from an acoustic point of view. A metal case might rattle.
    – Michael Harvey
    Sep 23, 2018 at 19:06
  • Also HDD, which is much more sensitive to vibration than solid state components. That said, at moderate volume, it should not be an issue.
    – DrMoishe Pippik
    Sep 23, 2018 at 21:03

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Yes you can. Computers often come with unshielded speakers in them already.

As mentioned in the comments to your question, would it sound good? I Guess you will have to find out.

It would take an incredibly powerful magnet that is moving to induce an electric current to disrupt or damage components.
See this video showing a monster rare earth magnet versus electrical devices, including a computer. Electronics hold up very well.

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