Hi all, I recently acquired a JBL M553 electronic crossover which can be configured for stereo with three passbands. I then looked at the specs and found that the crossover frequency for the treble band is limited to 5 kHz. Now I have a pair of old Olympus S8R with triamplification but 5 kHz seems to be a bit too low a crossover point for the 075. Any of you out there attempted to modify the crossover points in the M553 lately? Or any other thoughts?Best regards