Finally got them. First impressions after like 30 minutes: Easy to love + âplanar silenceâ.
Tried them with the original âpancakeâ pads, excellent treble clarity, but clearly not enough bass. They were like HD58X (they arenât âsupposedâ to be: Theyâre closed-backs). Not even 5 minutes later, I put Shure 840 pads. Yup, thatâs it. 
Still excellent treble clarity, but bass, too.
Basically if you want HD280 Pros with detail and a bit of soundstage (and thatâs what I wanted, yes!), thatâs it, thatâs all, no other mods needed. I wonât say the green line is accurate (see above)⊠Itâs better than that. Theyâre neutral. The treble is definitely there. Close to perfection for me, especially for home studio use. 
Fun facts:
-This silence. Theyâre my first planars. Their speed⊠You clearly know when thereâs absolutely silent parts in songs. Especially in electronic music where silence is âperfectâ silence (zero hiss).
-I suspect one of the main reasons theyâre âsemi-closedâ (a tiny bit) is so you can actually drink or eat something, or just swallow your saliva, without your ears getting blocked. Lol. Couldnât do that with HD280 Pros.
-I can drive them with my old Samsung Note 3. Lol! 100% is too much on electronic songs and one click lower is okay.
So, yup, again, Zeos was right. They get my recommendation (with Shure 840 pads only) for neutral, detailed headphones.
