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Any way to shield a non-sheilded center channel ?

Hello! I just purchased a Totem Mite-T center channel speaker here on Audiogon. Much to my dismay, I just discovered that it was un-shielded after setting it on top of the Sony XBR TV. It is a shame to discover this, since it has a good tonal match to my front speakers, and even the wife says it is attractive! The seller has already agreed to take it back minus the shipping cost, which was very kind of him to offer. Is there anything that can be done inside the cabinet that can cure this problem, or should I just ship it back to him? Thanks for your help!
bigshutterbug
ezmeralda11
303 posts
 
http://www.diyaudio.com/forums/showthread.php?s=7326aee582dd9ba9b634e8c19ade5347&threadid=1079&highlight=shielding

Go to diyaudio.com click on speakers, then click search, then type "shielding." You'll have to line your cabinets with sometype of metal (is one option).
alexanderj
139 posts
 
Any chance of experimenting with a simple metal plate (between the sony and the speaker) connected to an outlet cover screw? Plate might have to be somewhat larger than the speaker to be totally effective.
tireguy
1,964 posts
 
The car audio company Dynamat makes a sound deading insulation that has a lead layer between the ply's, I think it even has adheasive on one side so it is super easy to install.
herman
2,259 posts
 
The metal plate must be a material that can be magnetized. That way the magnetic lines of flux from the speaker are concentrated in the metal and they are directed away from the TV. Lead is nonmagnetic and will not work. As mentioned, mu metal is an excellent choice. Do an internet search for sources. Many (most?) "shielded" speakers are not shielded at all. They have another equal strength magnet behind the speaker magnet that concentrates the lines of flux inside the cabinet.
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