Yamaha S6215 plans for JA3882 15"?

I came across 4 Yamaha JA3882 Woofers recently, but finding suitable plans for a build are a bit elusive.

Many comments that they are a drop in for some of the Altec front loaded horns.

But have read some good things about Yamaha's S6215 horns.

Does anyone have some plans for these?

Or would be interested to hear about other builds or applications which have used this driver.
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