Home Closed Back Headphone Reviews Audio Technica ATH M40x Review | WORTHY!

Audio Technica ATH M40x Review | WORTHY!

by Stuart Charles Black

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  • 1/30/21. Article link/cleanup.

Hi friend and Welcome!!

Before I get into the Audio Technica ATH M40x Review, grab a snack, sit back and relax because…

You’ve come to the right place!!


What I will bring you in this review

  1. Specifications
  2. Introduction/Summary
  3. Pros
  4. Cons
  5. Video Review
  6. Amp/DAC requirements
  7. Who these headphones benefit?
  8. Thoughts from Stu’s notepad
  9. Consensus/Conclusion
  10. Final Word

Now without further ado, let’s get rolling!

Quick View

  1. Jack of all trades. I would consider these first for bass heavier genres, but they work well as an all-around headphone as well and do fantastic for most genres.
  2. Balanced signature. The 40x works well as a reference headphone because, for the most part, it’s fairly balanced. The mid-range is excellent, and though there is some slight emphasis in the mid-bass, it doesn’t get out of line too much. This is an incredibly crisp, clear, and clean set of headphones that perform much better than their price would indicate.
  3. No need for an amp. If you’re on a budget and need a headphone that won’t require an amp, this is a great solution. It will work well out of a phone, but does benefit from some amplification should you invest in it down the road. I like both the Audioquest Dragonfly Red and the Oppo HA-2 for portable puppies.
  4. Price to performance ratio. As alluded to above, for the price these are hard to beat. I placed them at #3 because they do place more of an emphasis on bass, and I don’t think they are quite as balanced or neutral as a 9500 or a V6. The mid-bass and slightly metallic-sounding treble (at times) keep these from the top spot. Pound for pound, they are the #1 bass head solution at this price bar none though, so they get a fantastic 3rd place rating overall.
  5. Accessories, Build, and comfort. I love the fact that they come with 2 detachable cables in the form of a sturdy coiled and straight version. The insert feels extremely solid as well. These don’t feel cheap by any stretch, and the comfort is very good though you will have to take a break every so often.

Audio Technica ATH M40x



I’ve had the ATH M50’s for a long time, and just recently decided to pick up a pair of 40x’s. I was curious about the sound signature and if it’s as neutral as everyone says it is. I would say they are more neutral than the 50x for sure but neutral by themselves? Not quite. The bass is still accentuated a bit, but it feels nice. It doesn’t seem too bloated or cheap, but it is a tad overdone like your mom’s meatloaf.

I would say overall these really benefit from high-quality source files. They really start to come alive. With YouTube videos and the like, it’s hit and miss. So anything that’s 320kbps and up these will sound fantastic.

A lot of people complain about the clamping force, but I don’t mind it too much. They seem to fit me pretty well and feel solid in my hands. They twist and contort in many of the same ways as the 50x’s, but the only difference is that the ear cups don’t actually rotate towards you. With the 50x’s, they rotated inwards and outwards. It’s a bit odd that Audio Technica would neglect to include this range of motion, but I digress. It’s not really a huge deal in my experience, but something to consider.

The interesting part about this is that it may be the leading factor that contributes to them breaking around that very area for others. A lot of people complained about this and it makes sense. My 50’s are ridiculously durable because they can be folded pretty much any which way. So maybe it is kind of a big deal. Lol. Mine has not broken yet, so that’s good news.

Overall I’m liking the build quality and feel like people are overreacting a bit about it. Both the 50x’s and 40x’s have a metal headband adjustment inside, so that’s a plus. Time will tell if they do hold up as well as the M50s.


  • Crisp sound, with some emphasis on the bass.
  • Crisp, clear treble.
  • The bass is controlled in my opinion. It doesn’t really sound out of place but has an impact.
  • Good instrument timbre. What is Timbre?
  • I was impressed with the box presentation.
  • The level of detail in some songs is impressive and is something I missed in other headphones.
  • Replaceable cables and 2 chords included + a leather case.


  • Because they don’t rotate inwards, this creates a high-stress area that is prone to snapping.
  • Mid-Bass is a bit overdone like your mom’s Meatloaf.
  • Treble can bit a tad sizzly/metallic sounding at times.

Video Review

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Click to see the M40x!

Little Brother.
Up close and personal.
Hinge worthy.
Hit the road jack.
Folded like the Atlanta Braves.
Soft and supple.
With a dash of green.

Amp/DAC requirements

Again, the most important thing about the 40x’s is your sound source in my opinion and many others. They sound lively with good sources, and rather dull without them. The sound seems to open up considerably with high-quality files.

These definitely aren’t going to need amplification. They will sound great right out of your phone, and you can use them with your audio interface as well. If you happen to have a Schiit Magni/Modi stack laying around, they will work great out of those as well. 🙂 Learn more: Schiit Magni 2 Review.

In case you were curious:

Who these headphones benefit?

Endorsed for all of the following:

  • Editing
  • Monitoring church broadcasts
  • Mixing/monitoring music
  • Metal
  • Rock
  • EDM
  • Hip-Hop
  • Classical
  • Jazz

Thoughts from Stu’s notepad

  • They come with 2 chords which are nice, one coiled and one straight. Both are pretty long (3m), so not the best for portable use.
  • Plugging in the proprietary removable cable was a bit of a challenge at first. To make it simple: You insert the cable, then half turn until the white marks line up. I did not notice them at first. I just kind of haphazardly plugged it in. Make sure it’s snug and in place. 🙂 Snug like a bug in a rug.
  • I’m enjoying the textures in some of the music I listen to. It’s like a veil was being lifted off of certain areas in the track. This is of course highly dependent on your source files, however. Make sure you have good ones.
  • The treble will be a bit piercing/sibilant at first but really settles in after a period of burn-in time. What does sibilant mean?
  • The 40x’s are light, but not extremely light like the AKG K240 Studios. Loved the 240’s sound, but they felt like a cheap toy.
  • Some people like to EQ these just a tad to get the desired sound.
  • They are mixing headphones but at the same time not truly. The level of clarity and detail is definitely there, but they may be a bit heavy on the bass to be called true mixers.

The complete package.


A crisp-sounding pair of headphones with a tight clamping force and a piercing treble range (at first). The sound really opens up with high-quality source files and some burn-in time. They prove to be pretty versatile with different genres and overall provide a nice level of detail and clarity.

Final Word

I would definitely consider these some of the best headphones for the price. There isn’t really anything I don’t like about them. If you’re looking for something strictly to mix at around this price range, I wouldn’t go with these first, but I would consider them. My go-to option in the entry-level price range for mixing is most definitely the MDR V6. Learn more:


For general listening closed-back cans at this price range, I love the M40x’s. So I would recommend them in either instance, but for mixing there are some options to consider that are above them.


Well, that’s about it for today my friend! I hope you’ve enjoyed this Audio Technica ATH M40x Review.

Questions? Comments? Requests? Did I miss the mark on something? Please contact me!!

What do you think about these headphones? I would love to hear from you. Until next time…

All the best and God bless,





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Audio Technica ATH M40x






Build Quality





  • Crisp sound
  • Full bodied Bass
  • Great for harder genres
  • Comes with 2 detachable cables


  • Uncomfortable after a short time
  • Prone to break in certain areas
  • Treble a bit metallic/artificial sounding

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