| Does anyone know how to shield a speaker? [message #33721] |
Tue, 21 August 2001 06:10  |
James W. Johnson
Messages: 199
Registered: May 2009
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Master |
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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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| Re: Magnetic Shielding [message #33727 is a reply to message #33726] |
Wed, 22 August 2001 06:15  |
James W. Johnson
Messages: 199
Registered: May 2009
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Master |
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It is not worth the trouble to try and shield these speakers.
MU metal with 100% coverage would be effective but very costly, bucking magnets will change the TS specs of the drivers a little bit
and won't be all that effective considering the size of these magnets
steel is just too heavy and probably won't be that effective either.I am going to try and find an FPTV that will work for me, I have a very well lighted room so it will need some treatments and I need to find a projector that is fairly bright and within my budget.
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| Re: Does anyone know how to shield a speaker? YES! [message #33734 is a reply to message #33721] |
Fri, 24 August 2001 20:04 |
newjerseybt
Messages: 12
Registered: May 2009
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Chancellor |
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There is a company which specializes in magnetic shielding which
will provide you with several kits which you can experiment
with! There is plenty of math associated with magnetic shielding
but the theoretical formula can never take the place of experimentation. So say the engineers at Magnetic Shield Corp.Kits run from $50 to $150. Magnetic Shield Corporation
750 N. Thomas Drive
Bensenville, Illinois 60106
Telephone: 630 766-7800
FAX: 630 766-2813 They are located on the WEB. Their site is very interesting and
worth a visit! There is a detailed description of their kit which
looks like it will work well with most speaker designs. Read their
FAQ in order to design the most effective shield housings. A second company involved in the same business is Advance Magnetics.
They also have a site on the WEB. Advance Magnetics
625 Monroe Street
Rochester, Indiana 46975 Phone: 219 223-ADMU
FAX: 219 223-2524 GOOD LUCK!
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| Thanks [message #33746 is a reply to message #33734] |
Tue, 28 August 2001 16:53 |
James W. Johnson
Messages: 199
Registered: May 2009
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Master |
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Thanks for that info , that is the most promising stuff I have found to date as far as speaker shielding goes...
however my 32" TV is going out the door as I have have just purchased an LCD front projector and I am now builing my new 75" screen.
I am so excited to get it all hooked up.
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