Tim,
With electrical Q (Qe=.33) provided, I was able to calculate the Efficient
Bandwidth Product (EBP).
EBP=Fs/Qe
EBP=12/.33
EBP=36.36
Being well below 50 confirms, that this driver would function best in a
sealed box.
Using a Vas of 53.96 cu/ft (huge!!), an Fs of 12Hz, Qts of .302, and an
optimum Qtc of .707, I calculated a (sealed) net enclosure volume (Vb)
of 10.945 cu/ft. The driver will reach an F3 at 28.1 Hz. Since your
intended use does not include HT, this driver/enclosure arrangement
should provide smooth, deep bass, with detailed transients.
BTW, I have sent you numerous, technical emails concerning your
project, since I can't post screen shots here. Why aren't you receiving
them? I thought you had lost interest, and the tone of the most recent
reflects that.
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