Can subwoofers damage VHS tapes?

Discussion in 'Speakers' started by VinhT, Jun 17, 2004.

  1. VinhT

    VinhT Second Unit

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    I put my 25-31PC+ behind the TV, which sits on a stand. The stand has a few side shelves, where old video tapes are stored. I have removed the VHS tapes for the time being. Can they be damaged (erased or degraded) by the sub? The shelves are 2-3 feet away from the driver. The CRT TV shows no sign of distortion, so I am guessing that the stray magnetic field coming from the sub is pretty weak.
     
  2. Dan Halchak

    Dan Halchak Stunt Coordinator

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    the sub gives off a magnetic field (which most subs aren't shielded (SVS PC+25-31 being one of them). With the sub giving off this magnetic field it IS possible that it will damage the tapes. I don't know if this is a regular type thing, but as a rule of thumb I've always tried to keep magnetic things away from speakers that aren't shielded.

    I doubt it will tend to do anything, but doesn't hurt, better safe than sorry!
     
  3. ChrisBee

    ChrisBee Stunt Coordinator

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    You'll be lucky to keep them on the shelf once the sub gets going. We suffer frequent "landslides" in the middle of action films! [​IMG]

    I'm sure I'll be corrected if I'm wrong. But tapes get wiped by alternating magnetic fields and not by permanent magnets. Perhaps the TV will do more harm than the sub? I never thought about that before. Perhaps I'd better move our Video collection from under the TV?

    ChrisBee
     
  4. Johnny_M

    Johnny_M Second Unit

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    considering that 99 billion vcr's are sitting on top of TVs, i doubt theres a problem there. i dont believe a magnet will completly erase a tape, but it will make it look horible. video tape stores its information magnetically, so any introduction to another magenet is going to move data around.


    Johnny
     

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