yes i have listen. i want wait what others hear. others do not report what they hear. now i write. I hear in the AM tone huge wobbling(i think it wobbles around 5 hz, but i am not sure. can also be 10 hz) with headphone and my jbl same strong. the fm.wav is more clean but it wobbles too clear noticable. maybe you reduce the phase shifts to much lower. in last post i want say. when this happen with stereo signals the diffrences are much much more hear because the wobble of left and right speaker independent give the room feeling of a big reflective room
In loudspeakers, nobody (much) is debating the issue of 10 microsecond ITD limits.
That's not in doubt. But remember, if both speakers are the same, that does not affect ITD's in a given frequency at all.