K-horns are corner horns. Pi 7's are too, but *much* simpler to build and better sounding IMO.If you're doing the Pi 7's I'd use something other than the Eminence horn up top. When I get the bucks together I'm going to play with this a bit. JBL seems to be a standard choice for high frequency motor. I'd be interested in anyones opinion that is running TAD on the top end as well.
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Enjoy.
Grant.