Marvel's post in La Scala Industrial (splits) mid driver questions was marked as the answer
That is certainly the wrong driver to be used with the LS crossovers. It could also really damage the diaphragm crossing that low.
I have some LS cabs I am redoing, purchased cheap, that had NO Klipsch parts. The mid driver was an EV that would play low enough, but it was on an 800Hz horn and crossover. Left a bit of a hole.