Hommage auditorium 23 horn

Auditorium 23 Hommage Cinema loudspeaker | Stereophile.com

Link above. Can someone explain to me the midrange horn expansion? From the outside it looks like a parallel wall tractrix deal with the compression driver just dumping into the back end, but that cannot be the case, else it would have some high q tomfoolery in band.

Is there an initial expansion that is folded inside that I can’t see? Any guesses?

Edit: oooh is there an expansion that passes down, through the final expansion, into that horn ‘base’ then curves around to the back of the final expansion? Like one of those western electric horns that passes through itself...??
 
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Right, it's folded up inside and you're only seeing the final expansion.

Don't think so as the box seems big enough for a normal layered fold, but it might, just depends on the folding.

GM
 
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