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<blockquote data-quote="NDMstang65" data-source="post: 2636368" data-attributes="member: 544576">No no, nothing to do with cardboard at all, the stuff that looks like card board is just a spun lace material that is put on the coil in order to have something for the glue to bond to.Kapton - Generally a lower power application and is what is seen in most tweeters and midrange drivers...some subs have it as well, especially pro sound based subs like is linked in the video above.Aluminum - Majority of the car audio people use this mainly due to it is light and very funtional...and decently cheap in comparison to other materials.Kevlar blend - JBL has a Kevlar former that they use on the WGTi woofers, VERY light and VERY durable, however very costly.Ceramic - Pioneer has a ceramic former that they use on the SPL woofers that i know of, very cool material, but very costly as well.The first two are the most common...the 3rd is not, as i believe JBL may have a patent on the technology...or possibly a proprietary right to the technology...not totally sure, but i do know that its awesome, but very expensive.</blockquote>

[QUOTE="NDMstang65, post: 2636368, member: 544576"] No no, nothing to do with cardboard at all, the stuff that looks like card board is just a spun lace material that is put on the coil in order to have something for the glue to bond to. Kapton - Generally a lower power application and is what is seen in most tweeters and midrange drivers...some subs have it as well, especially pro sound based subs like is linked in the video above. Aluminum - Majority of the car audio people use this mainly due to it is light and very funtional...and decently cheap in comparison to other materials. Kevlar blend - JBL has a Kevlar former that they use on the WGTi woofers, VERY light and VERY durable, however very costly. Ceramic - Pioneer has a ceramic former that they use on the SPL woofers that i know of, very cool material, but very costly as well. The first two are the most common...the 3rd is not, as i believe JBL may have a patent on the technology...or possibly a proprietary right to the technology...not totally sure, but i do know that its awesome, but very expensive. [/QUOTE]

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