Just had a lucky opportunity to try out a couple headphones from Sennheiser in a small headphone meet, in which I manage to do demo of the HD800S on 2 separate occassions, one in a bit busy room 2nd was in much quieter room.
With the conclusion I come up as: Is it wrong if I think the HD 800S to be a good upgrade from the MA900? It contains many points the Sony has and expand on it, ie comfort, weight, big soundstage, smooth, natural non fatiguing sound (at least compared to non s ver), etc etc with improvement on detail is just absurd (though i know its not something we look from the sony), with precise separation in it as well, what's also special is how effortless it sounds as well, feels like i can crank up the volume and the driver wouldn't even sweat.
I really didnt expect this at all from long time reading impression of the HD800.
From other headphone I've tried like R70x, HD600, Elear, even Amiron Home, which I thought would be it, didn't make me feel settled this easily. It actually is very musical.
Only the HD800S is the one that I dont need to adjust the sound coming from the Sony while immediately feeling the improvements and are actually find it hard to find negative from upgrading onto (and I love my MA900 to bits)
Maybe the Edition X or HE1000 can be it also, but as of right now I havent had the opportunity to try them yet so for now..
I think I just found my Open Back target.
Edited for paragraoh spacing