2. tech-talk
  3. 1298586672

magnetic shielding...how important is it?

how important is magnetic shielding of speakers to protect, say an ipod or a cell phone that is carelessly placed atop them?

am putting together an ipod-based bedroom system that will consist of a pair of small monitors flanking a wadia powedac/itransport on my bedroom dresser. if the speakers are within a foot or two of the wadia on either side do I need to worry about them damaging my ipod (120g classic, so not solid state) if they are not magnetically shielded? what about a blackberry haphazzardly tossed next to the speakers?

anyone have any thoughts that could weight in? or horror stories they could share that might save me the same fate? thanks!
wrtickle
9 responses Add your response
magfan
1,583 posts
 
I'd think the only POSSIBLE problem would be putting a HD within no more than a foot or 2(at MOST) from a non-shielded speaker.

CRTs were very sensitive to this because the forces inside the gun were very small.
hifihvn
943 posts
 
The magnets inside any speaker are way too far away, and too weak to worry about. Irregardless of the worrying Hifihvn is doing. LOL! trust me.
Elizabeth (Threads | Answers | This Thread)

OK Elizabeth. Here's the opposite that can happen. If you put some steel, or other ferric metal in front of the tweeter, the magnet may pull the object into it. This happened to a friend who put an amp cover in front of his speaker, and that was the end of the tweeter. Some Mission or others have the tweeter at the bottom. And no, that wasn't me with the cover damaging the tweeter *yet*. I guess I need a bow tie. LOL :)
Post removed 
jckonicek
13 posts
 
I have seen speakers depolarize info on hard drives. Otherwise, you should hv no concern.
hifihvn
943 posts
 
This manual has no mention of it. It may have good shielding.Info on the net is all over the place as far as yes and no. Check the manual for yours to be safe is the only thing I can think of. [http://manuals.info.apple.com/en_US/iPod_classic_160GB_User_Guide.pdf]
sfar's avatar
sfar
1,758 posts
 
Elizabeth's advice is right on. There is no scenario where the speaker magnets are going to be close enough to your iPod to cause any issues with it.
hifihvn
943 posts
 
I just read your thread again, and yours is. I would check into it further.
hifihvn
943 posts
 
There might be some ipods that still use a regular hard drive.
If that is the case, I'd check into it. Solid state may be OK.
Post removed 
Log in to respond
More to discover
80x80
Ansuz Acoustics PowerSwitch
80x80
B&W (Bowers & Wilkins) 801D4
80x80
RSX MUSIC SERVER RSX MUSIC SERVER