This is the FR plot from the Sentry IV-A EDS. I am not getting the high frequency extension, although my room runs to the bright side of things. Note that the factory crossover has power switches that attenuate the signal to protect the tweeter for high power/volume usage. As well as a tweeter protection circuit. The plots 2,3 & 4 represent the treble reduction in the factory crossover settings. The factory tweeter crossover point is 3500Hz. (I built my own crossover, eliminating the power switch and using a 4700Hz crossover point, no tweeter protection circuit - because, to me, it sounded better!)
The EV X36 crosses over at 3600Hz.
Cheers,
Geary
