Well for me the 58X in the video sounded close to the 58X at least frequency-response wise. I don't know if the recording of the DT880 had any issue but they were very bright with some sibilance, even through the 58X. Reminded me of the SHP9500 but the DT880 on the video was brighter. Anyway the 58X as I said has grain issues, some frequencies can, with some time, cause fatigue in some people (you can EQ that) but overall the DT880 for sure has more treble. If you want less treble, something a little more laid back, with more focus on mid-range I think the 58X is good. I don't know the DT880 I can't speak about detail, speed and this stuff but frequency response wise the 58X should have what you are looking for. Have you tried to mod the DT880 or use some EQ? Maybe this can fix the issues you have and you don't even need the 58X.