reverse engineering

[hector.murray]

I saw the other post regarding box design calculations, when I remembered that I believe I once saw an electrical method to determine what the Fb of an enclosure was, with a speaker in it. In otherwords, determine what an enclosure is tuned to with it's driver in place. I think it involved a sweep generator, but was wondering if anyone else had seen or heard of this and if so what the procedure was or a link to it.

[4313B]

Here's an "easy" method:

http://www.danmarx.org/audioinnovation/impanalyzer.html

Also, here's old reference:

http://www.lansingheritage.org/html/jbl/plans/1979-manual.htm

http://www.lansingheritage.org/images/jbl/plans/1979-manual/page29.jpg

http://www.lansingheritage.org/images/jbl/plans/1979-manual/page30.jpg

http://www.lansingheritage.org/images/jbl/plans/1979-manual/page31.jpg




http://audioheritage.csdco.com/vbulletin/showthread.php?t=4678

[hector.murray]

Thanks, I knew I'd seen it somewhere, just couldn't remember where.

[4313B]

Yeah, I've lost that link more than once. It sure is nice to be able to link to stuff on the WWW instead of constantly having to type it all in! A lot of people have done a lot of really cool stuff with web pages and it's quite nice to be able to reference it all. :yes: