Give it time, and you will slowly fall in love.
Edit : Updating the rating from 4 to 5 stars, after 10 months of usage. As the title says, I totally fell in love with it.
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This review is for those, who are confused regarding the hype of M50X. I personally did not like the sound signature earlier. But after a lot of tweaking with equalizer and with enabling spatial sound (Dolby Atmos for windows 10), I am slowly falling in love with these headphones. It requires time to get used to the signature of sound if you are hardcore bass lovers.
So here is my full review which I would like to break down by points :
1) SOUND Quality:
BASS 9/10: Excellent production of bass. After increasing bass levels in Equalizer, it just pumps right amount of bass and is very deep and punchy.
MIDS 7 /10: Mids are okay, balanced. Vocals are crisp and bass does not overpower the mids.
HIGHS 5 / 10: Awful. It's very bright. I had to lower down some higher frequencies in order to resolve my headache.
I come from Sennheiser background where I had PX 80, PX 95, CX 175, HD 202, HD 203 and HD598 SR. I also have Sony MDR 550AP. So comparing to those, sound signature of ATH is different. If you directly plug in these headphones without configuring and tweaking equalizer as per your needs, then you would be disappointed, as I was on the first day of listening to these.
I thought, maybe, I should try configuring properly. I googled frequency response and balanced equalizer as per my needs. I have uploaded my EQ settings. So below review is purely depending on my personalized EQ setting.
Now, these headphone sound damn amazing, I could not believe the experience after enabling Dolby Atmos for Headphones (Windows 10 feature). It's brilliant. Even it sounds great on Windows Sonic spatial configuration. Just disable 7.1 virtual surround. Uncheck the box in sound setting. Games and movies sounds epic. High quality audio files have new dimension to it now. Especially A.R Rahman songs (Dil se and Jiya Jale recording in Berkeley University). If you love bass, these will definitely sound better than HD598. But if you love immersion and wider soundstage, no one can beat Sennheiser HD598 under 10k budget.
However sound quality is very subjective, as many people prefer high bass, many prefer higher clarity. These headphones can be "ADJUSTED" according to your needs. Hence I can say, out of the box its not good, but it definitely has that capability to be the best if you give it proper attention.
2) BUILD QUALITY 10/10 : Simply excellent. It feels premium. Very strong. It looks durable, many people have been using these for years. Although not sure about ear cups, as they wear out in one year or so.
3) COMFORT 9/10 (Edited) : When I posted this review, I found it very difficult to wear these for long hours, but after 10 months of usage, the comfort level is far better now. I have used it for watching back to back movies, playing games for 4-6 hours straight without any issue. Although in warm weather, it may get a bit sticky. No issues in air conditioned room.
4) NOISE CANCELLATION 6/10: Not that good. I can hear ambient noise. It reduces up to 50 percent. Best to listen in quiet environment.
5) SOUND LEAK 10/10: Sound does not leak at all. Person sitting next to you will not be disturbed at all, even on high volume.
6) Accessories 10/10 : Good carrying pouch, 3 wires as per different needs.