I sent email to Vandersteen support ( I think it was Richard who replied) and basically provided all of the equipment I have and asking which if any configuration can work. My McIntosh is 100% integrated it listed as one on McIntosh site and it says that on the front panel.
Yes, I do have this filter with RCA connections. I did not see anything in Arcam manual allowing me to do use software for high pass filter, but even if it did it would be to risky. He and you both pointed to possible damage if it does not work somehow.
Currently Arcam AVR850 is running with with P429 power amplifier. Basic atmos setup. I see more pre amp out available and was thinking to add another amp and create zone2 which would use that instead of other stuff being connected. Zone2 theoretically will be 5a's
Also I have Cambridge 851n which is digital pre amp and there is 851w stereo amp available for it. That is another path I can take.
I asked if local Vandersteen dealer would provide setup and was told only for things I purchase from them....
I'm trying not to loose focus and get it to a finish line and with all this help I'm confident something great will come out. I did not see any setup videos and any links would very much appreciated.