The Audio-Technica ATH-M40x are decent headphones with outstanding, studio-quality sound. They feel sturdy and are fairly comfortable but offer no control options for your audio. They also only provide passive isolation, which might not be enough to block the noise of some listeners' commutes.
- Good audio reproduction.
- Sturdy build.
- Poor isolation.
- No buttons or audio controls.
The ATH-M40x have a bland studio design that's well-built and comfortable. The plastic earcups are dense, and the headband is reinforced with a metal frame. This makes the headphones sturdy and able to handle several drops without getting damaged. Unfortunately, they're not sufficiently stable to be used while doing sports or other high-intensity activities. They also don't have any control options for your audio.
The large ear cups of the ATH-M40x fully encompass the ears and do not apply too much pressure to the head. They also swivel, which makes them easy to adjust. However. The padding used for the headband and ear cups is a little rigid and squeak when moving or adjusting the headphones on your head.
The M40x are decently stable on the head. They are not designed for sport, so they will easily slide off your ears while running or jumping. However, for casual listening sessions, they will stay in place even if you put them on, tilted and little further back than usual. The detachable cable is also a plus for stability, as long as you remember to unlock the cable from the ear cups.
The ATH-M40X, like the ATH-M30X, are decently portable headphones. They are on the larger side of over-ear headphones but fold into a more compact format that will fit in a backpack or handbag but will be too large for most jacket pockets. The thick or very long audio cable is also a bit cumbersome to carry around but unlike the lower-end model of the series are detachable.
The ATH-M40X feel robust and durable. They have a mostly plastic design that's dense and able to handle a fair amount of physical stress. They have a metal frame that reinforces the headband, and the ear cups feel sufficiently sturdy to withstand a few drops without damage. The joints, on the other hand, are susceptible weak points where these headphones could get damaged and may weaken over time.
The M40x sound great with most tracks and music genres. They have minimal harmonic distortion, and their audio is well balanced. Bass is nice punchy, and instrument and vocal are accurately reproduced. However, some of the very high tones can sound a little sharp for younger listeners that are more sensitive to those frequencies.
Very good performance. There is a bit of a dip in low-bass and a slight bump in bass and high-bass. That means these headphones lack a little low-end thump and instead slightly over-emphasize melodic bass instruments.
Very good performance. There is a slight dip in low-mid which can make the leads/vocals a bit thin, especially combined with the overemphasized bass.
Decent performance. The main issues here are the bumps around 8KHz and 16KHz. The 8KHz bump can make the headphones a little sibilant, and the 16KHz bump make the headphones excessively airy and hissy.
Good distortion results. The low-bass and bass distortion levels are on the high side, but the rest of the spectrum remains within good values. Even at higher SPLs.
Isolation is passive for the ATH-M40x. This means that only the seal created by the over ear fit of the ear cup will prevent noise from seeping into your audio. Unfortunately, the seal is not enough to block the low-frequency noise of a plane or train. Fortunately, they do not leak too much but are audible to people around you at very high volumes.
Poor isolation. The passive isolation provided by the ear cups does a decent job of blocking treble sound. However, as the frequency lowers, so does the effectiveness of the passive isolation. Their effect below 400Hz is minimal.
Average leakage. These headphones do leak some sound, and the majority of that happens between 500Hz and 4KHz, which is rather broadband. However, the overall leakage is not too loud.
No active features.
No compatible app.
In the box
- Audio-Technica ATH-M40x Headphones
- Carrying pouch
- Audio cables (x2)
- 1/8" to 1/4" Adapter
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