Audio-Technica ATH-M40X


Studio and DJ Headphones

  • Closed
  • Circumaural
  • Dynamic
  • 40 mm driver with neodymium magnet system and CCAW voice coils
  • 90 Degree swivel ear cups
  • Frequency range: 15 - 24000 Hz
  • Maximum input power: 1600 mW at 1 kHz
  • Impedance: 35 Ohm
  • Sound pressure level: 97 dB
  • Detachable cable
  • 1.2 - 3 m spiral cable
  • 3 m straight cable
  • Weight with cable: 300 g
  • Weight without cable: 241 g
  • Colour: Black
  • 6.3 mm adapter and bag included
Available since February 2014
Item number 331904
Sales Unit 1 piece(s)
Design Over-Ear
System Closed Back
Impedance 35 Ohms
Frequency range 15 Hz – 24000 Hz
Adapter Yes
Weight 241 g
Replacable Cable Yes
Colour Black
Sensitivity 97 dB
Max. SPL 97 dB
Type Of Connector Mini Jack
Replaceable Cable 1
Show more
The shipping costs are calculated on the checkout page.
In stock
In stock

This product is in stock and can be shipped immediately.

Standard Delivery Times

795 Customer ratings

4.6 / 5

You have to be logged in to rate products.

Note: To prevent ratings from being based on hearsay, smattering or surreptitious advertising we only allow ratings from real users on our website, who have bought the equipment from us.

After logging in you will also find all items you can rate under rate products in the customer centre.




497 Reviews

Excelent headphones for studio monitoring
Pedro Moreira 05.01.2018
I?ve ordered 3 of these to be used in my recording studio as monitoring headphones for musicians.
Inicialy i was considering the ATH-M50 (the non X version) wich i already own a pair an absolutely love the sound but i?ve decided to give the M40's a try after reading some positive reviews, keeping in mind that i could always send them back and get the M50's instead.

After sometime comparing the two and other headphones i have, (various models from AKG) I decided to keep them because i found them to be perfect for the task, this is why:

Great detailed reproduction over all frequency content with smooth clear higs and full deep lows without being overwhelming. A bass player will be very happy as all the others.
Very confortable to be used over a long periode of time, physicaly or soundwise. (wich isnt so true for the older M50's)
Good isolation , ( perhaps just not enough for loud drummers).

They also came with two cables one short coiled cable and a straight longer cable. Thats a nice touch and very handy.

Build quality is very good.

What i dont like:

they are foldable!
Although this may be a good thing for most casual users looking for portability, it's a feature you really dont miss in a pro studio and this particular folding system makes them more fragile and prone break.
(this happened to my M50's)
Also the regidity of the materials employed dont help in that regard.

i'm really enjoying this headphones,
full, detailed and emersive sound that inspires you to deliver a great performance.

I'm going with 5 stars considering the price and performance!
Excelent product!



Good, while they last.
Matti H 30.07.2020
I had a pair of these headphones for a handful of years, and while I enjoyed their sound signature very much, as well as, surprisingly, the comfort of wearing them, even with the stock ear pads, the problem with these headphones remains: They break. Above each "cup" there is a little construction they hook onto so they can swivel in all kinds of directions. It's a plastic part that can be extended from the headband itself to suit your head size. It's essentially two plastic pieces joined together around the mechanisms inside. This is the weak point of the headphone. One of mine broke after a few years. I proceeded to glue it back together with epoxy, a process I repeated numerous times until eventually, the headphone cup itself came out of the construction where it's supposed to swivel and whatnot. Obviously I couldn't really glue that back together as it would make the flexibility of the cup position and rotation inoperable, and so I, to my dismay, had to scrap the whole thing. They lasted a good while, and I did use them a lot, but for the price, I'm disappointed they weren't more durable. I've had a pair of Superlux HD 668-B headphones for almost a decade that I've trounced through rain and snow with, and they're still going strong. They also cost a third of what these cost.


FoncyJR 24.03.2022
These are my first pair of studio headphones. The sound is very flat, responsive and detailed. The two included cables offer great versatility for working at a desk or recording while plugged in a little further away. The headphone jack adapter included is very good, screws on tightly (haven't lost it yet...) and has a good connection. The carry pouch is good quality and has lasted in perfect condition.

They are comfortable to wear, although after a few hours they can get a bit tight feeling and begin to dig in slightly. This is true for many headphones though so it's not a huge deal.

I think these offer a really good option for the mid-level price bracket, there are cheaper ones out there that may rival but I really cannot fault these headphones in terms of build quality, sound and durability for what is a fairly affordable headphone.


Home Recording and Mixing
fhole 06.02.2018
I'm using these for home recording, tracking and mixing.
I don't have proper monitor speakers and usually, it seems, headphones and speakers try to make things sound good. So I was looking for something I could use to give me a clear idea of the actual, non coloured, sounds that I was recording and mixing.
I did some research and heard really good things about the M50's, and was considering them. Then I heard a review of these that said that they might be even better, even though they were cheaper. Better and cheaper sounds good to me : )
They are relatively comfortable, don't really notice you have them on, until you take them off : ) I use the twisty cable, just enough length to go back and forth between the computer and mic without getting tangled or tripped over.
I use them for tracking, guitar , bass and vocals, so they had to be closed. They don't prevent 100% of sound escaping, you can usually hear a hint of the track, but it's never been anywhere near a problem for me, since the recorded part will be used with the track it was recorded along with.
I also use them for mixing, and despite being closed, with open being apparently more desirable for mixing, I have found them to be excellent in delivering a flat response and realistic representation of recordings. All the frequencies sound about right, especially the bass does not seem to be boosted, which is great. It's really annoying having mixed a track to find that the bass is weak when played on another system.
I can't directly compare them to other headphones in terms of use but they work well for me and seem to be a pretty good deal overall.


YouTube on this topic