I didn't say that the output of the Murata only dropped below 15K Hz. It is dropping sharply at 15K. Yes, I suspect it is the mechanical characteristics rather than a crossover and thus my speculation about the Townshends.
I doubt seriously if you can duplicate the effects of the Muratas or other supertweeters without frequencies above 15k Hz. I do agree that the original poster should try them.
I doubt seriously if you can duplicate the effects of the Muratas or other supertweeters without frequencies above 15k Hz. I do agree that the original poster should try them.