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Voice coil construction question

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Long thin wire has resistance obviously. For arguments sake, if a company used small gauge wire they would need 50 feet of it in order to get a resistance of 4 ohms. If they use a bigger gauge wire, they might need 150 feet now in order to get a resistance of 4 ohms.

Like most things in audio, everything has a trade off. More coil means more surface area to dissapate heat, but also reduced efficiency because now it weighs more.

I'm sure there's a lot more to it, but that's my basic understanding of it.

Check this link for common awg's used.

http://gboers.xs4all.nl/daisy/home/g3/139/g1/loudspeakers/driver/voicecoil.html

 
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kmanian

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