Dedicated Thread for Subwoofer Knowldge -

[osix 10+ year member]

- Ever Wonder How a Sub Woofer is Build

By starting this Thread i hope we can share and discover

the Process and trade secret ,

 

the know how to help us better understand this wonderful monster

that make our heart pow .

 

will try my best to gathering info and post it up . and with the help of you'll

let build a Subwoofer DNA thread //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Thanks .

 

Please feel free to correct me if i am wrong on any stage .

is open for suggestion and correction of info -

 

and will try to correct any mistake as we go along //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Also in the proces si hope to meet new friends and exchange knowledge

Cross section of a Sub -

Updated -06-02-2007

Here is some Link or everyone from everyone //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Subwoofer operation - TREO Engineering

How It's Made - discovery channel - Thanks One bad MOFO

Click to read more...

 

[One Bad MOFO 10+ year member]

Discovery Channel "How It's Made"

http://www.realmofexcursion.com/videos/Various/loudspeaker.wmv

 

[Octavio 10+ year member]

Nice thread good Info so far

 

[kickerlivinloud 10+ year member]

Discovery Channel "How It's Made"http://www.realmofexcursion.com/videos/Various/loudspeaker.wmv

Interesting! I've never seen that before.

Jon

 

[~Magick_Man~ 10+ year member]

it is t-yoke not t-york

~Magick_Man~

 

[ultimate157 5,000+ posts]

*retarded question*

Whats a former

/retarded question

 

[osix 10+ year member]

Thanks for correcting the T-Yoke error -

i had edited the error , and feel free to provide more info

thanks

 

[Beat_Dominator 5,000+ posts]

*retarded question*
Whats a former

/retarded question

It's what the coil of wire, that the Voice Coil is made up of, is wound around.

 

[Flipx99 5,000+ posts]

It's what the coil of wire, that the Voice Coil is made up of, is wound around.

Is it just cardboard or does its composition have any real effect on performance?

 

[bdawson72 5,000+ posts]

this could be a start of a good thread

 

[NDMstang65 10+ year member]

Is it just cardboard or does its composition have any real effect on performance?

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.

 

[bigbassman Premium Member]

just for reference, when dealing with overseas builders, and general industry use

spider = damper

top plate = washer

basket = frame

and to build on what midget posted.. some companies wind coils on a heat resistant plastic blend, which is very cheap, but not tolerant of sustained high temps..

Loyd L.

 

[jimrhit 10+ year member]

Aluminum formers are nice and light, however, they have can sometimes conduct too much heat up to the spirder/cone neck glue joints, severely weakening them when great care isn't taken in adhesive selection .... leading to some pretty nasty failures in use.

 

[bigbassman Premium Member]

if a buildhouse is using crappy adhesives they deserve it.. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

coolest thing I've seen was a fully spun aluminum cone / former.. excellent thermal transfer..

I'm down for any means to increase surface cooling area..

Loyd L.

 

[jimrhit 10+ year member]

You should see TC Sounds fully Ti spun prototypes they had a while back //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Nice and light and strong ... just one problem ... yeild = 4% back in the day