Since you will need to set 96 kHz delay in the miniDSP for the tweeter channel, uncheck “FIR output sample rate” on both channels and change the sample rates on the Setup tab to 96 kHz.
>> Also I’m sending you the FDS file by email so you can see how I’ve set up all the changes we’ve discussed so far.
The “FIR Phase Adjust” tab for the Tweeter has the 2nd filter (near 19 kHz) boosting. Change this to a cut, to meet the upper plot phase.
Also, on the Export tab for the Woofer channel, on the middle plot, check “Show FIR filtered loudspeaker” and notice how the response below about 300 Hz doesn’t closely match the ideal filter (before windowing to a filter length of 1700 samples). You could try using IIR filters to help in this frequency region; assuming your miniDSP can also load IIR filters.
Regards,
EA Support