Ask HN: Headphones for “big” ears?

I am a software developer, working at home, and looking for a pair of headphones with these characteristics:

* 100 € budget

* Usable with a laptop and a mobile phone, no hifi, amps, etc

* Closed

* Circumaural and comfortable (and, very important, they must contain my ears: they are ~ 7.2 - 7.5 cm and the earpads must be big enough, otherwise I will not use them). I say that I think to have "big ears" because in the past I tried some circumaural headphones that didn't do the job because the earpads weren't big enough, and they became uncomfortable after some minutes.

* Isolating in both ways (I don't want to hear the noise around me, and I don't want to disturb people around me with my music)

* Balanced/flat/neutral (no punchy bass nor shrieking treble, I will use them also when working to relax/concentrate/isolate me, and the listening mustn't be fatiguing)

* Absolutely wired, with standard audio plugs (detachable cable is a plus)

Is the Audio Technica ATH-M40X a good choice? Does it meets all my requirements? I am open to suggestions, of course :)

Thanks in advance!