Magnetic Shielding?

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Masta N

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Joined: March 15, 2002

Location: United States

Posted: April 28, 2006 at 2:19 PM / IP Logged

I have a quick question. How are speaker units(enclosures) magneticly shielded. I am building my home theater room, and all of the enclosures are custom. The sub enclosure and the center channel will be very close to the monitor and I wished to shield the monitor from the magnetism of the drivers. I assume that a non ferrous metal is lining the units that are premade, but really unsure.

Thanx Masta N out

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stevdart

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Posted: April 28, 2006 at 8:35 PM / IP Logged

If it's not a CRT monitor you won't have to do anything. I use a DLP and there's no interference at all with a sub and unshielded speakers all around it. I believe plasma and LCD are the same way.

But as far as shielding goes, the speakers themselves have the shield. Usually shielded speakers are chosen when making custom speakers for home theater, and the commercially made ones are the same. There is no lining in the enclosure itself.

Some examples seen here: http://www.partsexpress.com/webpage.cfm?webpage_id=3&SO=2&&DID=7&CAtid=49&ObjectGroup_ID=490

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DYohn

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Posted: April 29, 2006 at 11:35 AM / IP Logged

Usually shielded speakers simply use a bucking magnet that cancels much of the stray flux emanating from the speaker motor magnet. Use of actual magnetic shielding material such as Mu Metal is much more expensive and often not as effective.

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Masta N

Member - Posts: 47

Joined: March 15, 2002

Location: United States

Posted: May 01, 2006 at 9:22 AM / IP Logged

The monitor is a projection type. I'm just wanting to cover my bases before I beatmyself into the ground building this thing, and have the rainbow on the top of my screen.

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Magnetic Shielding?

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