A couple questions about Pi-alignment


I am designing an enclosure for a high-Q full-range driver, simple BR design.

In terms of calculating the optimum enclosure volume, resonance, and bandwidth, is the Pi-align whitepaper the best source? I only ask since it is dated 1979, wondering if it is state-of-art for Pi-alignment.

Also, in the formulas on page 5, I don't recognize some of the parameters from the typical T/S params.

Anyway, any advice would be appreciated.


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