voice coils and BL

[somekook 10+ year member]

what voice coil material would allow for the greatest BL?

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[Warbleed 10+ year member]

Copper, followed by CCAW (copper coated aluminum wire), and them aluminum.

 

[somekook 10+ year member]

why? just because its a better conductor? if so, would silver be even better?

 

[kickerlivinloud 10+ year member]

I'm no expert but I think it is b/c silver rusts more easly. I don't know if I am right but I think that is right??!?!?!

Jon

 

[DBfan187 5,000+ posts]

I'm no expert but I think it is b/c silver rusts more easly. I don't know if I am right but I think that is right??!?!?!


Jon

silver doesn't rust, it tarnishes

Downside to silver is, PRICE! ex$penciola

 

[kickerlivinloud 10+ year member]

silver doesn't rust, it tarnishes
Downside to silver is, PRICE! ex$penciola

See what do I know????

Jon

 

[Anarcy 10+ year member]

Silver is cheap

It's only 6$ an ounce.

 

[somekook 10+ year member]

what type of metal is speaker wire made of? some of it is copper colored, some of it is silver colored, but i doubt its silver

 

[DBfan187 5,000+ posts]

copper & white copper

 

[Steven Kephart 10+ year member]

Well B is the magnetic flux, while L is the number of turns in the flux. So one type of coil material won't have higher BL than another. But one type might allow more current to flow through those turns, which can make a difference.

Typically voice coils are made from either copper or aluminum.

As for silver, IIRC it has properties that make it a poor choice for a conductor. We used to have a chart of different materials on our website that explained the differences, but I don't see it now. If I can find it I can give you a reason why this is true.

Steven Kephart

Adire Audio