I’ve had the XP20 and I currently have ARC SS gear, the LS10 and D240.
The XP20 was honestly a straight gain tool no features to speak of, ultimately I sold it and moved to the musicality of the ARC set.
You may find you like both because they do different things to their music signal. Try to demo the XP32 without selling your ARC gear.
Good luck with your tests.