I had the chance to audition the Dunu Mirai over the week thanks to Discord user Freeryder05 - thank you!
This set is really solid, and I’m surprised it’s not being talked about more.
Tuning is a very natural U-shape with bass and treble that is more gripping and dynamic than U12T. It has better timbre, more bounce and slam to it.
Staging is average but well defined in all 3 planes, with crisp precise imaging. In some way it reminds me of a hybrid of U12T and RN6, but is tuned better than both though a bit less technical than RN6. This set has some treble energy north of neutral, but it’s rarely ever harsh at all - it’s definitely less bright than RN6, but its upper mids are more forward than RN6.
Sub bass is super satisfying, mids are natural and treble engaging just enough, it’s a great generalist.
Overall, it’s astounding to me that we have product like this at 1.1K along with sets like U4S & Singularity which leave nothing on the table vs much more expensive sets. Sometimes these auditions bring me back down to earth and question why chase summit-fi so aggressively? Well, it’s always a chase to the top and audiophilia is a disease 
If there’s one nitpick from me is that the stock cable doesn’t help with the iem’s timbre, as it’s a ”thin” sounding cable. Besides that, no complaints, not one. It’s a difficult IEM to fault, just don’t come in expecting the same wow factor as some 3K+ sets.
