I have a new set of M80v4 which replaced my old M80ti and the difference in dynamics in the midrange is extremely noticeable. M80v4 have minimal playtime yet and have not been broken in fully. Id say around 20 hours play time. Im using the same amp on both and its not the same and I actually enjoy my m80ti over the V4's.

Can I expect them to sound better overtime or is the crossover just changed this drastically that this is just the way they sound?

Just to be clear Im very familiar with Axiom products as I have a set of M60, M3, M22, QS8, VP150 and 100.