Comming from a guy who had own er4s, um miracle (dislike),beyerdynamic t1
Im planning to purchase nt6 pro after reading alot of review,a/b about it............i was considering between 1plu2 and nt6 pro.......as far as i understand,the nt6pro extend better compared to 1plus2 in treble,about the same in bass(im a treble-head).
my favourite iem was and still er4s eventhought i have the um miracle but um's sound-sig wasnt my cup of tea (too polite treble and warm,not so good @ mid's clarity).
I wound say beyer t1 is my best suited sound sig........stunning ss depth would be my 1st thing i love about this can,sparkle,extended treble within lush mid not by sacrificing its mid clarity,good bass quantity at high bass quality.
is the nt6pro is beyer t1 mini version?
sorry about my english :P
I discussed it with average joe and he told me, while NT6 seems like a ciem version of HD800, NT6 Pro is more like a ciem version of Beyer T1. I think this one would be an answer to your question.
Obviously don't expect the get the 100% same sound but what I understood is, their sound signatures are very similar.
If you are a treble head, I am sure NT6 Pro would satisfy you.