I recently tried this headphone at a friends place. He also owns the DT990 which the Tyger is based upon.
Well all I can say is that I agree with the folks who find the Tyger warmer - it is - but most definitely NOT in the treble. The new Tyger is a tad more bassy as well as being a wee bit more laidback in the mids...but the treble? Wowza..it’s even more aggressive than the DT990! Ouch.
Folks who are treble sensitive yet still have been lead to believe that this indeed is a “fixed” DT990, look elsewhere

Also seems to make sense somehow. Most modern cans aimed at the gaming market do so with the promise of increased spatial awareness and other such tomfoolery...yet what that means is basically just a bump in the treble region somewhere around 4-6 k...and wouldn’t you know it? That’s the exact same thing Sennheiser has done with their HD560S.
Yes the new Tyger is warmer than the original DT990..sure thing..but it’s also way more piercing in the upper frequencies. I know many dig this sort of in-ya-face-treble..probably why so many adore the DT1990..and I’m not here to tell anyone that it’s ‘wrong’ or anything of the sort. I strongly believe in individual tastebuds and their right to pick what they choose...nah I’m merely here to warn the treble sensitive people