At least, from what I remember. Take it with a grain of salt. It's been a while since I listened to my Starfields, as well as the fact that I'm still relatively new to the audio scene

The Dusks has punchier but cleaner bass compared to the Starfields. Less distortion/mud

The top end is also clearer with the Dusks, instruments at the too end like the cymbals are clearer, less distorted (if at all)

Can't remember much about the mids to compare. Sorry about that.

I would say that the Starfields are about 30-40% of the way to becoming a Dusk. But you have to consider the huge price jump from being a 1DD IEM to a 2BA + DD IEM and the commission that Crinacle is getting from tuning it with the price of a Dusk 2 in itself.

I'll re-listen to my Starfields again to give a better explanation.