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Akira
01-15-2013, 06:29 PM
There was a lower line of speakers made by JBL in the 90's called the HP8-88 series.
I recently bought a pair of the 8" woofers for a project and would like to know the Thiele/Small parameters of the speaker or at least the required airspace.
Any other info would be of interest.

4343
01-15-2013, 09:54 PM
http://manuals.harman.com/JBL/HOM/Technical%20Sheet/HP8B%20ts.pdf

http://manuals.harman.com/JBL/HOM/Technical%20Sheet/HP88F%20ts.pdf

And with a different 8";

http://manuals.harman.com/JBL/HOM/Technical%20Sheet/HP82B%20ts.pdf

Akira
01-15-2013, 10:55 PM
What I need are the thiele/small parameters to make a box for it. As I am planning on using them as midbass in a 4 way system I will probably be housing them in an enclosed box. How do you calculate volume in a sealed enclosure? From what I have read, the exact dimensions are not as critical. But, I have also read that foam surrounds are not ideal. There will be little or no bass response below 100Hz.