Heres a fun free box worker
http://www.eatel.net/~amptech/elecdisc/spboxnew2.htm
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Heres a fun free box worker
http://www.eatel.net/~amptech/elecdisc/spboxnew2.htm
...for the referral.
There is great stuff on there - very comprehensive. The mystical T-S parameters are adequately defined, there is discussion on transducer polarity, and even a non-named reference to the JBL polarity convention. Ha!
Plus, a gazillion other topics even NOT autoaudio related.
Pairing the Link you included with WinISD, all one needs is some power tools, lots of components to chose from and a number of speaker-less listening rooms...