I couldn't resist... I bought a pair of Sennheiser MX 980.
I own both Yuin OK1 and Blox TM5 and I was dying to compare them with it. So I plug my iBasso D2 and listen to a couple of FLAC and I was SHOCKED!!!! Soundstage, highs, mids, vocals and instruments separation are terrfic!!! Default sound signature is really balanced and doesn't emphasizes bass frequency, so with flat sources It seems not to have a good kick as Blox TM5. But listening to a warm source or equalizing the sound reveals the true nature of the Sennheiser MX980. They have a bass with the deepest frequency , the higher quality and they really remind me HD650. Blox TM5 can't do that. So what
swbf2cheater is saying is true.
Using
Kostalex syntax...
MX980 >> TM5 >= OK1
Cheers!!!