Thanks. Is it your sense that the AMT directs or throws the high-mid and treble further out than a normal tweeter, such that that allows one to break the usual equilateral triangle rule of thumb? Mine are 3.5 from the front wall, 2 from the sides, and about 7 feet apart. Sweet spot is 7 feet or less with the M5s in my room.
I've never had trouble getting other tweeters to perform at the distances I listen at. There are a lot of variables like toe in, height, the room, volume knob position
. This AMT sounds effortless to me. On axis it sounds the same at 3ft as it does at 13ft. I don't think you'd have any trouble near field depending on your preferences, however I wouldn't enjoy having the AMTs pointed directly at my ears at 3ft unless I was listening at low volumes. (They perform really well at low volumes btw)
My preference so far with these is to sink down into my sofa so my ears are at the same level as the mid range driver, I have them pointing a few inches to the outside my shoulders @ 10ft distance from the speakers. This may change as they break in and I experiment with placement more.