True, but based on my experience ANC like the full-sized XM3 beats ER4 in a very high noise environments. That's how good the ANC is. This is for low frequencies of course, and that's most practical for me because the usage will be in planes to drown out engine noise. And I really like light compact small formfactors when out and about. I don't like to walk around with bulky full-sized.
Once a good ANC is implimented with good enough sound, it will be my practical iem for all usage other than for SQ.
yes, using the XM3 in a noisy place and turning the ANC on is trippy good. too bad the sound signature is not my liking.
if this mark 3 sounds like the first gen, i might jump in and buy