Not really, but kind of. DT 770 was my first headphone and I obviously liked it (fat sub-bass and spicy treble). With the knowledge I have today I would not buy it again. But can I really call it a regret? It's sturdy as hell, easy replacable and cheap parts and can be EQ'd. Then, I am still going down the IEM rabbit hole and have a bunch of IEMs that are not outright bad, but none of them satisfies me as an endgame should.