Audio-Technica ATH-M50x

Intro

This review will mostly focus on M50x’s qualities from a studio professional point of view – what to expect when using these headphones as a monitoring device for mixing and do they really cut it for mastering work.

After all, you should make your decisions based on what’s in the material, otherwise you might end up with mixes that translate well on your gear and not much else. Know the limitations of your equipment and you will be able to work around them. This text will attempt to illuminate, what to keep in mind when using the M50x for critical studio work.

The original ATH M50 has been one of the most recommended closed headphones at the $150 price point. Most of its fame comes from the consumer segment. One of its largest communities – this forum – has generated dozens of reviews praising its qualities and excellent price/performance ratio. Currently there is a distinct lack of dedicated pro-audio headphone reviewers, therefore most of M50’s pro-fame has largely spilled over from the consumer audio segment. At the same time both M50 and M50x have an abundance of qualities useful for both music listeners as well as producers.



Uncalibrated sonic performance


Perceived Acoustic Power Frequency Response (PAPFR) graph. Measured at Sonarworks lab with a proprietary compensation curve. Not to be compared directly to AFR measurements from other sources.

These headphones perform just like they measure – a fun, clean sound. This is mostly due to M50x’s U-shaped FR and extremely low THD. Looks like ATH has really put in some serious R&D work in M50x’s driver, because THD this low at sub bass frequencies has usually been reserved only to planar headphones. Kudos to ATH for bringing clean bass to the masses!




Now onto the sonic issues to keep in mind if one wants to use these headphones successfully for music production. All of the M50x headphones we measured exhibited level differences between channels. At 200Hz-600Hz there is a wide dip which drops to around -5dB, whilst not too annoying to consumers, it can cause trouble to LCR mixing advocates. With the M50x, some string instruments like guitars for example will change tonality, depending on how they’re panned. The effect will be subtle, but must be taken into account to prevent chasing ghosts in the mix.

On the top end of the U curve we have a peak at 5.5kHz-10kHz which goes up to +7dB at 10kHz which can cause a number of issues. First of all, too much de-essing will be applied to the vocals, as the peak resides right at the sibilant range. Secondly, your sweeps won’t be as accurate because the FR peak will give you a false sense of rising. In general, this peaking can cause your mixes to be dull – one of the inherent cons of all “exciting” headphones, if used in studio.

The low-end response on these headphones is positively thunderous – there is no sub-bass roll-off until 20Hz and THD stays extremely low. The channel imbalance which starts at about 350Hz is still present, but on lower frequencies it shouldn’t be much of a nuisance. Most of the signal at these frequencies is mono anyway and humans don’t really excel at positioning low frequency sound.



Calibrated sonic performance


After we meticulously measured every dip and peak found in the M50x, our engineer generated a calibration profile. These profiles are available for every Sonarworks Reference 3 plug-in user. They turned these headphones into a serious instrument even fit for mastering. This paragraph will explain what can be gained by applying digital calibration to these already great headphones.

We can bet that when you turn on the Sonarworks Reference 3 plug-in, you’ll wonder who flicked the fun switch off! Resist the urge to take the headphones off and listen to some well- mastered tracks. Your ears will need some time to readjust to the reference sound signature and your first impression will surely be dull for lack of a better word. At the same time, it will allow your mixes to translate well to speakers and just about any headphone out there.

All in all, these headphones are a great candidate for calibration due to the low inherent THD and little change in tonality depending on how they’re placed on one’s ears. Obviously Sonarworks calibration gets rid of the U curve and makes these headphones a perfect candidate for mixing and mastering just about any kind of music. One thing to keep in mind is that the average calibration curve won’t be able to combat the channel imbalance properly, because only individual calibration profiles do stereo calibration.

As always there will be some loss of output when applying calibration. In this case it should be about 8dB, which isn’t too bad due to the fact that these headphones are very sensitive. Most audio interfaces will be able to drive these headphones at ear-splitting levels even with calibration enabled. For some higher gain devices, the loss of sensitivity might turn out to be a blessing in disguise, as it will give more usable volume pot range.



Ergonomics



Just like its predecessor, the M50x has a great fit that doesn’t get in the way of everyday use. Unlike most on-ear headphones, this one doesn’t rely on a strong clamp to achieve a good seal, therefore it is fairly comfy even in longer sessions. One thing to note, however, is that all pleather pads are prone to becoming sweaty in hotter environments.

Construction wise the M50x is decent, but isn’t the tank that is the venerable HD25-II is. Like almost every other headphone out there, most of the outer construction is plastic, however it feels like it’s the kind of plastic that breaks rather than bends on stress. Both earcups are on hinges which allow them to be folded up for a more compact package. At the same time, every moving part does present more points for wear, tear, and ultimately – failure.

This time Audio Technica has given the M50x a swappable cable and generously included three additional cords. The standard package includes a coiled 1.2 – 3m cable, 3m straight cable and 1.2m portable cable. All three of them feature 1/8’’ TRS jacks and the two longer ones have a thread for 1/4’’ jacks. On the headphone end, M50x have a 2.5mm TRS connector which seems to be proprietary due to a locking groove. All in all, kudos to Audio Technica for choosing to go this route because with most headphones, cables seem to be the first to prematurely fail.

Most studios tend to stick with their headphones until they disintegrate due to natural or unnatural causes and very few give attention to earpad wear. We recommend swapping out pads as soon as they start changing their initial geometry. Old pads seal worse and let the drivers sit closer to one’s ears, thus changing the initial FR. Fortunately the pads on the M50x are swappable as well, so the user is able to maintain their headphones at peak performance for a longer time.

In terms of noise sealing, the M50x works well, but again is overshadowed by Sennheiser’s HD25-II and many in-ear monitors. The seal should be good enough for mixing in moderately noisy environments and will guard musician’s ears from excessive SPL’s, but most of the time noise will obstruct the finer details. The seal will also keep the user from disturbing others working in close vicinity, good for mixing on the road.



Conclusion

Has ATH hit a homerun again? Could be so – at least for consumers! At the studio professional end, things are a tad more complicated. No doubt, it’s a great headphone with relatively little shortcomings, but the tuning might be too “fun” to be considered reference grade. At the same time M50x’s competition doesn’t fare any better, most of the other closed studio headphones at this price range are starting to show their age. Sennheiser HD25-II scores some hits in the ergonomics department, but its drivers are a bit long in the tooth. Same goes for Sony MDR-7506. Now, Beyerdynamic DT770 is a worthy competitor to M50x sound wise, but the Japanese headphone is able to land some hits with its three detachable cables and superior portability. Everyone at the lab agreed that these headphones calibrate very well and after calibration pose a serious threat to newer higher end closed studio phones like Focal Spirit Pro and maybe even ATH M70x.

In the end, this is a modern headphone meant for modern music. Engineers who work with a lot of bass heavy material will be in for a treat as the M50x offers excellent performance in this regard. They might not mind its other shortcomings, but should keep them in mind. Or they can use calibrated headphones and focus entirely on their work. Sonarworks calibration turns the M50x into one of the best closed headphones at any price.

I have 2 months.
Large walk in headphones so not bad. In the not too headphone monitoring Marshall and Sony.
Insulation, quality plastics, phenomenal sound quality.

Well it is not given € 150 for a headphone. But if it should be robust ca profitability quickly.

Buy the Original recording.
But commonly used for classical listening.
I listen to mostly rock and metal, I tested on funk and classic.
Perfect sound.

Good quality plastic, nice touch.
Comfortable enough, it compresses pretty small flat head so a little uncomfortable on long use. Like all headphones close yes it heats the ears.

I did not so long ...
ca robust air. As this is the first release not interchangeable jack.

Its huge c'certainement one of the best headphones I've had (well after the other headphone its large market (Marshall Major and minor))
Very good insulation (in the street, I absolutely do not hear the outside world)

Very good level no need to get too sound. Flac files with any audible is a real happiness)

for about 3 months
I had a low-end Sony headphones (sound + as was ok for the price but the insulation 0)
A little pricey, finally .... in this range is the norm it seems
I am very satisfied with my purchase and recommend it to all.

I use this headphone home studio and also for répetitons with my rock band and I must say that exactly meets my expectations.
Very good sound balance and closed enough that we do not hear the sound from the outside under my home studio and crazy drummer fraquasse my ears during repeated.

I took this model to its sound characteristics recess but also for its detachable cord.
A real + for me because, being supplied with several cords, it allows me to leave a cord and a rehearsal room in the home studio history of being attack quickly.
The ear cushions are very comfortable (not too hot) and the weight is very suitable for my little head, but happiness

Very well balanced
The noise level is correct
Very good insulation

Used for 2 weeks, no disappointment so far, quite the contrary!

To summarize, this is a headset with which you feel comfortable immediately and whose kinks are fully forgiven when you look at the money we spent.

Generally, I use the large checker headphones for my mixes. One, it is so pleasant that I listen to music just for fun.

Unlike most of its competitors who use mostly in velvet, the atria are leatherette. It's nice but it's perhaps sweat when it's hot.
Comfort level, no complaints. This site naturally. It is not used too much and not too loose.

Atria pivot to put flat. And it folds like a Sony MDR-7506.

I mostly listened to metal with at the moment.

Qualitative impression. He looks strong. It comes with 3 detachable cables. A very good point. Competition should be inspired.

Purchased from B & H Photo Video in New York. The headphone radius is very impressive. There are 4 sub-departments: DJ, mid-priced, trendy stuff (like Beats or other distressing marketing scam) and audiophile.

In the mid-priced range, I was rather go for a Shure SRH-940. He told me much but I preferred the Audiotechnica, almost two times cheaper. In fact, I preferred it to everything that was in the radius. There was also a significant difference with his little brother ATH-M50, more painful in the upper midrange.
In the audiophile radius, there is nothing affordable so the comparison stops there. In addition, the music played varies from one section to the other, which prevents them compete with the reference numbers in the market.

With its pokey impedance, the volume is high. For the subway with a smartphone, it does quiet!
No need to turn the sound way down to watch a movie on the plane.

In terms of tonal balance, it is less easy to be objective. I can only compare it to my other headphones (Beyerdynamic T70p, Sennheiser HD565 Ovation, Sony MDR-7506, AKG K 272HD).
In terms of bass, it is closer to Sony, ie they are present - especially as others are quite dry at this level. I venture to say that there may be a bump of 3 or 4 dB below 100 Hz
The midbass and midrange seem rights.
The upper midrange is nice. Clearly, there surely has a dip in the curve. It is very far from 7506 and T70 are very analytical.
Acute does not shock. It should be fairly neutral.

In terms of spatial, I expected worse. At this price, you can not ask a tonal linearity or spatialization top flight. Yet it is very honest, especially for a closed headphone.
A note in passing that there is no effect "carton" like in the AKG. For cons, the T70 is a good notch above on this point.