Thanks, Macrojack. Since posting the link, I have "met" one of that paper's authors in another online forum (he and I are disagreeing about something... surprise surprise!).
I don't have any experience with either the K-2 or Everest, but I'm sure they're awesome.
The original Everest, circa 1985, used an asymmetrical horn to achieve the desired toe-in angle without having to actually toe the speakers inward:
Original JBL Everest
I borrowed the concept; one of my models uses asymmetrical enclosures to achieve the same end, but with a conventional symmetrical horn.
Duke
I don't have any experience with either the K-2 or Everest, but I'm sure they're awesome.
The original Everest, circa 1985, used an asymmetrical horn to achieve the desired toe-in angle without having to actually toe the speakers inward:
Original JBL Everest
I borrowed the concept; one of my models uses asymmetrical enclosures to achieve the same end, but with a conventional symmetrical horn.
Duke