So far the differences I hear in the sound compared to the lcd1 is that the m570 are slightly more v shaped. Bass is punchier, treble is a bit sharper might be sibilant to some but not to me, mids aren’t as shouty as the lcd1, sound stage is a bit wider and Imaging is more accurate. Way better built, way more comfortable. The 570 tick all the right boxes for me so far. Keep in mind these are only first impressions.
Edit: forgot to mention they are way heavier too. Not a big deal to me but a con for other people.