The T1.2 is more similar to the Amiron Home but with less sub-bass presence and an overall softer/relaxed sound, the Amiron Home is a little more intimate than the T1.2 but I find the T1.2 more nuanced and refined. The T1.3 is more similar to the DT 1990 where it's more intimate, meaty, and dynamic, but also darker and more resolving than the DT 1990. With my impressions so far, I would say the T1.2 is more akin to a better Amiron Home whereas the T1.3 is more akin to a better DT 1990 Pro. When it comes to which headphone is better in terms of fidelity and resolving ability and also which I ultimately prefer I haven't made a decision yet. When I make that decision is when I plan on making the full comparison review of them.
I'll take either T1 over the Amiron Home or DT 1990 in terms of comfort imho. The T1.3 does clamp more, but I never had any issues with it's headband. The T1.2 had a little too much padding on the sides of the headband for me when new but that eased up with use.
I do listen to those genre's some, I like both headphones for those genres actually. I always liked both the Amiron Home and DT 1990, just found the DT 1990 a bit above my brightness tolerance level. Yes I do, haven't heard a genre it doesn't do well with, but I also find the gen 2 handles all genres well as well, just different presentations.
I've been using the Bifrost 2 DAC for a while. On the Gen 2 I rotated amps, tried the Asgard 2, Heresy, and Sony UDA-1. The Sony will not work with the T1.3 well as it has a very high output impedance and low-impedance headphones never worked well on it.