Not according to all the GK literature I've read. According to GK they're using 'Paragon Loudspeakers' which they apparently make.
Now, these very-well might be re-branded Eminence speakers, but if that's the case they're doing a great job of disguising it![]()
Pyle! that's what GK used to put in their cabs circa '92 or so. Just remembered. It does appear that they are rolling their own these days.