Video Asylum

Posted by pkell44 (A) on November 10, 2003 at 09:13:20

In Reply to: Re: Maginectic Buildup? posted by ncasebee@msn.com on November 05, 2003 at 14:36:43:

If you move your speakers their stereo effecct could well be compromised.

There is another alternative to moving your speakers but it will entail some effort (DIY) & small expense. you could shield the ofending speaker drivers using Texas Instruments Shield Material (available from Percy). This comes in sheet form of varying thicknesses and in 12" widths. TI claims that the material blocks >95% of both RFI & EMI [Electro Magnatic Interference i.e. magnetic flux). It's the EMI that's causing your problem. The material is very easy to work with using aircraft-type tin snips (serrated cutting jaws that don't slip) to cut to required sizes.

You'll have to open your speaker cabinets to install the shielding. It's most likely only the woofers that are causing the problem (large magnets). Form a tube for each magnet that has a closed end for each woofer and attach it to the speaker basket(RTV cement should work well). It would also help to ground the shields in order to drain off the RFI/EMI.

Happy video'ing !