This thread's going to kick off just watch lol.
My opinion, and that's all it is, is that I think the DT 990 line of headphones are meant for a specific section of the audiophile market - those that are partial to 'fun & bassy' headphones. For me personally, I adore the DT 990's I have. The 1 issue I did have was with the headband but I did rectify that by bending it fully, they didn't snap and problem solved headband's comfy again.
As for sound quality, *I* don't find the treble to be bad at all. In fact their brightness is something I rather enjoy as well as their bass. Also I'm not sure the lacking mids are as bad as some people on here suggest - though I fully concede that those said people will know a lot more than me on this subject and have a lot more experience. I'm simply giving my take on these headphones.
For me they're spot on. Granted I've never had great hearing. But to me these are not boring, not lacking in any frequency to my ear, they're lively and ridiculously detailed and clear. Also the soundstage to me is simply phenomenal (which I notice was never spoken of in the op surprise surprise!)
....also these are spot on for movies too.
In short, I love them. This whole thing just harkens back to the argument of different strokes - people prefer different types of presentation. Some like lively n bassy, others do not. I think it's a bit dumb for the original poster to judge other people's purchases based on their preferences and a headphone he bought himself that he didn't like - or that he got for free and trashed. Not the smartest idea is it ? And as for the destruction pics, why do people do that ? Yeah they're probably broken already but still....
In short why do a lot of people online have to be pricks, I don't get it. Sorry, correction, so pricks like me will take the bait and respond to it giving the prick an orgasm over it or somethin....good god.