Does anyone know how to shield a speaker?


My new 4 Pis are becoming a pain in the rear, I cannot get the drivers closer than 4' from my TV set without causing interference. Yesterday I brought the drivers to a local HT dealer and set them at various points around different RPTVs and was disappointed to find that they caused minor interference in them when placed closer than 2.5' or so.
Plus I had plans for a center channel that used the same drivers and I would like to keep it near the top of an RPTV.
I could go with an FPTV but feel with my budget and room conditions it will not be worth it.
Does anyone know how I can shield these speaker cabinets?
If not I am probably going to have to stop this project and move on to something else.


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