First, it's humbling to see a JBL horn on the cover of Stereophile !! I wonder how many JBL horns have graced this magazine's cover. I'll bet this is the first one.
In his review, Mr. Greenhill didn't mention that this design is open to the rear ("open baffle") as I think they are. Also, the reviewer stated that the 1400 peaks-out at 110db...this, with an 89db rating. I would think this is impossible - or maybe *possible* but loaded with distortion !!