Merging acclaimed features of the M-Series headphones with a foldable, travel-friendly design, and one-ear monitoring capability, the black Audio-Technica ATH-M40x monitor headphones offer pro-grade build quality and audio performance for studio-based production, location recording, DJing, and daily listening. Outfitted with 40mm dynamic drivers and an over-ear, closed-back design, the ATH-M40x headphones deliver a flat, accurate response and wide bandwidth (15 Hz to 24 kHz) while isolating you from outside sounds.
Thanks to the 90° swiveling earcups, pro-quality materials, and generous cushioning on the headband and earpads, the headphones are both durable and comfortable to wear. Two detachable, single-sided cables—one coiled and one straight—are included for optimal operation in the studio or on the go. Each cable sports a gold-plated 3.5mm mini plug for use with mobile devices and computer soundcards, and a 1/4" screw-on adapter is included for easy hookup to audio interfaces, mixers, and stereo receivers. A carrying pouch is supplied with the ATH-M40x for convenient storage and transport of the headphones.
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Key Features
- For Studio Tracking/Mixing and DJing
- 40mm Neodymium Dynamic Drivers
- 15 Hz to 24 kHz Frequency Response
- Tuned for Flat, Accurate Response
Merging acclaimed features of the M-Series headphones with a foldable, travel-friendly design, and one-ear monitoring capability, the black Audio-Technica ATH-M40x monitor headphones offer pro-grade build quality and audio performance for studio-based production, location recording, DJing, and daily listening. Outfitted with 40mm dynamic drivers and an over-ear, closed-back design, the ATH-M40x headphones deliver a flat, accurate response and wide bandwidth (15 Hz to 24 kHz) while isolating you from outside sounds.
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Audio-Technica ATH-M40X Overview
40mm Drivers
The ATH-M40x features 40mm dynamic drivers with rare earth (neodymium) magnets and CCAW (copper-clad aluminum wire) voice coils for high-quality sound reproduction.
Tuned for Flat, Accurate Response
The drivers and headphone design work together to provide a sonic signature tuned flat for accurate sound monitoring across the entire frequency range. With a frequency response of 15 Hz to 24 kHz, the ATH-M40x can reproduce a full spectrum of tones.
Over-Ear, Sound-Isolating Design
The ATH-M40x utilizes a circumaural design that contours around the ears for excellent sound isolation in loud environments. This over-ear, closed-back style is optimal for reducing bleed and separating you from outside sounds.
90° Swiveling Earcups and Foldable Design
Equipped with 90° swiveling earcups, the ATH-M40x ensures a great fit and allows effortless one-ear monitoring, a welcome benefit for DJs and singers. The earcups fold up to meet the headband, saving space during storage. A carrying pouch is supplied for protection and convenience while transporting the headphones.
Two Detachable Single-Sided Cables
To expand its versatility, the ATH-M40x incorporates a detachable cable design that exits from the left side. This enables convenient cable swapping and makes it easier to distinguish the different sides of the headphone. Two cables are included—a 3.9 to 9.8' coiled cable and a 9.8' straight cable.
3.5mm Plug and 1/4" Screw-On Adapter
The attached cable is terminated with a gold-plated 3.5mm TRS mini plug for easy hookup to mobile devices, MP3 players, and computer headphone jacks. A secure 1/4" screw-on adapter is included for compatibility connectivity with audio interfaces, mixers, and dedicated headphone amplifiers. Built-in strain relief on the 3.5mm mini plug reduces the likelihood of damaging the connection if the cable is pulled.
Pro-Grade Build Quality
Thanks to the pro-grade earpad and headband materials used in the ATH-M40x, the headphones provide increased durability and comfort while delivering enhanced audio and effective isolation.
UPC: 042005183531
Audio-Technica ATH-M40X Specs
Key Specs
| Wearing Style | |
| Open/Closed-Back | |
| Impedance | |
| Active Noise Cancellation | |
| Frequency Response | |
| Built-In Mic | |
| Audio Connector | |
| Included Adapter |
Headphone
| Wearing Style | |
| Earpiece Design | |
| Open/Closed-Back | |
| Sound Field | |
| Driver Type | |
| Driver Size | |
| Impedance | |
| Active Noise Cancellation | |
| Frequency Response | |
| Sensitivity | |
| Maximum Power Handling | |
| Built-In Controls |
Microphone
| Built-In Mic |
Connectivity
| Wired Audio Connector | |
| Included Adapter | |
| Connector Plating | |
| Cable Design | |
| Cable Length |
Physical
| Color | |
| Weight |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
Audio-Technica ATH-M40X Reviews
Nice Headphones
By Michael
Rated 4 out of 5
Date: 2026-09-18
I purchased these for audio editing and mixing. I wanted a pair of headphones that were more compact for traveling. These do not disappoint. The earcups are smaller than some of my other units but they are still comfortable for long sessions.
I use Audio-Technica ATH-M40x's as tracking headphones
By Ray
Rated 3 out of 5
Date: 2026-02-25
I use Audio-Technica ATH-M40x's as tracking headphones in the commercial recording studio that I own. They sound great, but aren't as rugged as they could be.
See any errors on this page?
Is there a connector that allows you to use these ...
Is there a connector that allows you to use these with a new iphone?
They do not include a Lightning to 3.5mm adapter. You would need the original one that came with your iPhone or get a new one from Apple.
Date published: 2021-08-16
how are they for gaming?
how are they for gaming?
The ATH-M40x closed-back monitor headphones are well-suited for gaming due to their sturdy build and studio-quality sound. They feature 40 mm drivers tuned flat for accurate sound monitoring, which is beneficial for gaming audio.
Date published: 2026-03-16
Are the earpads a standard size. How do you know ...
Are the earpads a standard size. How do you know if the replacement earpads are compatible? The descriptions are vague.
i’m sorry, i know nothing about that
Date published: 2020-05-08
Can you change out the earpads?
Can you change out the earpads?
No
Date published: 2024-05-22
is there a short cable (4" max) that can be used ...
is there a short cable (4" max) that can be used in place of the original cables? I need to plug in a small wireless receiver and the original cables are too big.
No since its a proprietary connector on the cable , we dont sell 4'' of cable for this Audio Technica Headphone you might have to contact Audio Technica direct to see it they have the short cable.
Date published: 2021-09-05
Can I use these with BTE-style hearing aids ...
Can I use these with BTE-style hearing aids (Oticon OPN3) without hearing feedback like I do with Bose QuietComfort25?
Yes, the Audio-Technica ATH-M40x Monitor Headphones (Black)
BH #AUATHM40X should work well with BTE-Style hearing aids.
Date published: 2020-09-13
Open Box Products Have a Limited 2-Year Warranty?
Open Box Products Have a Limited 2-Year Warranty?
Yes open box items come with a warranty.
Date published: 2022-07-08
Does the inner cup peel off over time?
Does the inner cup peel off over time?
Had these almost a year now...I bought them for my weekly radio show, but my 12 year-old has been using them daily for his on-line classes (for hours). He is NOT easy on them. So far, no peeling whatsoever. Still look/sound/feel great. Oh, and he did chew through the chord, but...bought a replacement chord for $29 and we're back in business.
Date published: 2021-04-07