FYI 830656 ND20FB-4 MTMMM from PE Board mattk

FYI
Interesting, this speaker uses four 830656 & ND20FB , simple crossover, you don't need a router.
There are no measurements.
No box specifications.

https://techtalk.parts-express.com/forum/speaker-project-gallery/38135-i-don-t-like-candles

https://techtalk.parts-express.com/...rless-mtmmm-and-mmtmmmm-2-5-way-designs/page2

post#18
mattk, "I used Zaph's ZA5.5tt crossover topology (see http://zaphaudio.com/ZA5/ ) as a starting point in PCD, since he knows what he is doing, and adjusted values to get a reasonably flat response with a good reverse null."

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diff driver
http://zaphaudio.com/ZA5/ZA5.5t.pdf

If anyone could design a box or knows more about this speaker please post.
 
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