Difference in coil sizes..

[DJAllDay502 10+ year member]

I've always wanted to know what the benefits are to having a bigger diameter voice coil in a subwoofer. Like most have 3" coils but a few have 4" ones. Just wondering if the increased size helps with heat dissipation and power handling or what. Thanks in advance!

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[elancohen92 10+ year member]

SPL woofers will have a larger VC, just about all I know about sizes! I know alot of the daily woofers have 3" coils.

 

[Chriszle 10+ year member]

A larger coil will be able to take more power for a longer period of time. I am not really sure of the disadvantages to a larger coil other than cost.

 

[DJAllDay502 10+ year member]

Thanks for the replies. I just picked up some RF Power HX2s and it says they have 4" coils. Anybody know of any other subs with the 4" ones?

 

[gpgtp]

generally weight, can affect inductance, etc.

 

---------- Post added at 04:08 PM ---------- Previous post was at 04:07 PM ----------

 

also, power handling will be more affected by coil composition, winding width, and a myriad of other factors over plain coil size.

 

[SPLaudio 5,000+ posts]

alot has to due with surface area and the amount of coil in the gap. id rather have a 8layer 3" coil than a 4" 4 layer. yes he 4" will have more surface area but the 3" 8 layer will have alot more wire and take more abuse....

 

[Kangaroux 5,000+ posts]

alot has to due with surface area and the amount of coil in the gap. id rather have a 8layer 3" coil than a 4" 4 layer. yes he 4" will have more surface area but the 3" 8 layer will have alot more wire and take more abuse....

is the hx2 4 layer and thats why you bring that up?

 

[SPLaudio 5,000+ posts]

very few 4" coils are more than 4 layer...

 

[Haunz 10+ year member]

I'm not sure what splaudio is trying to say but given the same gauge and length of wire the larger diameter former is better for several reasons...

 

[DJAllDay502 10+ year member]

I'm not sure what splaudio is trying to say but given the same gauge and length of wire the larger diameter former is better for several reasons...

And those reasons would be..