For more information on this topic please download the following pdf document:-
How to implement a stereo 5-way crossover on the Ultimate Preamplifier (https://analog-precision.com/Downloads/Docs/How_to_implement_a_stereo_5-way_crossover_on_the%20Ultimate_Preamplifier%20.pdf)
Amazing stuff Dave. Once again something that DEQX or Trinov cannot do.
And once again the test figures are published.