Don't worry, it was just a curiosity.I think i could have done that by utilizing the surround speakers, but it is too late now.
However, the step response of the two systems is interesting. The proprietary system has that particular attack on both channels which I wonder what is causing it, after which it goes away cleaner.
Dirac, on the other hand, is complex to understand how acts in this sense. Many peaks after the fundamental, but I doubt that some are due to time non-alignment.
Can you measure the step response without correction?