
Audio-Technica Ath-m40x Closed-Back Monitor Headphones (Black)
The M-Series ATH-M40x professional monitor headphones are tuned flat for incredibly accurate audio monitoring across an extended frequency range. Your studio experience is enhanced with superior sound isolation and swiveling earcups for convenient one-ear monitoring. Engineered with pro-grade materials and robust construction, the M40x excels in professional studio tracking and mixing, as well as DJ monitoring. More About the M-Series Headphones Critically acclaimed M-Series professional monitor headphones deliver accurate audio and outstanding comfort, perfect for long sessions in the studio and on the go. Contoured earcups seal tight for excellent sound isolation, with minimal bleed. And the pro-grade materials are durable, yet comfortable. Find out why online reviewers, top audio engineers, and cult followers agree, M-Series is an unmatched combination of audio and build-quality that gets the job done. Hour after hour, year after year.
The M-Series ATH-M40x professional monitor headphones are tuned flat for incredibly accurate audio monitoring across an extended frequency range. Your studio experience is enhanced with superior sound isolation and swiveling earcups for convenient one-ear monitoring. Engineered with pro-grade materials and robust construction, the M40x excels in professional studio tracking and mixing, as well as DJ monitoring. More About the M-Series Headphones Critically acclaimed M-Series professional monitor headphones deliver accurate audio and outstanding comfort, perfect for long sessions in the studio and on the go. Contoured earcups seal tight for excellent sound isolation, with minimal bleed. And the pro-grade materials are durable, yet comfortable. Find out why online reviewers, top audio engineers, and cult followers agree, M-Series is an unmatched combination of audio and build-quality that gets the job done. Hour after hour, year after year.
The M-Series ATH-M40x professional monitor headphones are tuned flat for incredibly accurate audio monitoring across an extended frequency range. Your studio experience is enhanced with superior sound isolation and swiveling earcups for convenient one-ear monitoring. Engineered with pro-grade materials and robust construction, the M40x excels in professional studio tracking and mixing, as well as DJ monitoring. More About the M-Series Headphones Critically acclaimed M-Series professional monitor headphones deliver accurate audio and outstanding comfort, perfect for long sessions in the studio and on the go. Contoured earcups seal tight for excellent sound isolation, with minimal bleed. And the pro-grade materials are durable, yet comfortable. Find out why online reviewers, top audio engineers, and cult followers agree, M-Series is an unmatched combination of audio and build-quality that gets the job done. Hour after hour, year after year.
The M-Series ATH-M40x professional monitor headphones are tuned flat for incredibly accurate audio monitoring across an extended frequency range. Your studio experience is enhanced with superior sound isolation and swiveling earcups for convenient one-ear monitoring. Engineered with pro-grade materials and robust construction, the M40x excels in professional studio tracking and mixing, as well as DJ monitoring. More About the M-Series Headphones Critically acclaimed M-Series professional monitor headphones deliver accurate audio and outstanding comfort, perfect for long sessions in the studio and on the go. Contoured earcups seal tight for excellent sound isolation, with minimal bleed. And the pro-grade materials are durable, yet comfortable. Find out why online reviewers, top audio engineers, and cult followers agree, M-Series is an unmatched combination of audio and build-quality that gets the job done. Hour after hour, year after year.
in 3 offers
The lowest price for Audio-Technica Ath-m40x Closed-Back Monitor Headphones (Black) right now is $199.00 at Byron Music, compared across 3 retailers.
The all-time low was $159.00 on 7 Mar 2026 — today's price is 25% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 23 July 2026.
Last updated at 23/07/2026 16:43:46
Audio-Technica Professional Monitor Headphones ATH-M40X
Delivery between 29 July – 4 Aug $10
Audio-Technica ATH-M40x Over-Ear Studio Monitor Headphones
Delivery $20.75
Audio-Technica ATH-M40x Over-Ear Studio Monitor Headphones
Delivery $20.75
originally posted on bhphotovideo.com
I'd describe the ATH-M40x as an accurate, flat response, budget friendly headphone. It outperforms other headphones double it's price point including Audio-Technica's more premium ATH-M50x. Why? Because it doesn't add color, remains neutral and delivers an accurate sound representation regardless of the genre of music you're listening to. I realize that sound is subjective. Some people adore the Beyerdynamic DT770 PRO 250 OHM, while I personally feel there's nothing special about them and feel that they're overhyped. I'm sure some people will say that these headphones sound like trash so if I were you I would suggest listening to some sound comparisons on YouTube to see if these sound right to you.These headphones use a clamp design that encloses the sound as ... MoreI'd describe the ATH-M40x as an accurate, flat response, budget friendly headphone. It outperforms other headphones double it's price point including Audio-Technica's more premium ATH-M50x. Why? Because it doesn't add color, remains neutral and delivers an accurate sound representation regardless of the genre of music you're listening to. I realize that sound is subjective. Some people adore the Beyerdynamic DT770 PRO 250 OHM, while I personally feel there's nothing special about them and feel that they're overhyped. I'm sure some people will say that these headphones sound like trash so if I were you I would suggest listening to some sound comparisons on YouTube to see if these sound right to you.These headphones use a clamp design that encloses the sound as close to the ear as possible but because of this ear fatigue typically comes in at the 3 to 4 hour mark. Remember all headphones cause ear fatigue eventually and I feel it's a good compromise for the sound quality you get. Ideally I would only use them when mixing and choose a more comfortable headphone while recording but hey limitations produce greatness.The M40x has a reputation of having peeling ear cups because of the heat produced from warm ears but so far these have held up great.I gave this product 5 stars, not because they are perfect but because they exceeded my expectations overall. This is a product I would keep for a lifetime.
originally posted on ebay.com
I can't speak for any other model across the AT line-up. These rock!!!! I consider myself an above average listener. My interests cross many genres. I purchased the m40x because the 50's were just out of my range even with eBays thoughtful coupons, what sold me was all the reviews I read that these were tuned even across the spectrum. No worries though, they thump accordingly. The bass is perfect IMO. Base drums kick hard and tight and electronic low frequencies come in deep and clean. Rap, classic rock, electronica, 80's rock and metal sound AS THE ARTIST INTENDED with great fidelity. I'm hearing nuances I haven't noticed before. Track list I tested these with: Metallica: Fade to Black vinyl recording Mob Deep: Hell on Earth Sunz of Man: Soldiers of Darkness (dirty ... MoreI can't speak for any other model across the AT line-up. These rock!!!! I consider myself an above average listener. My interests cross many genres. I purchased the m40x because the 50's were just out of my range even with eBays thoughtful coupons, what sold me was all the reviews I read that these were tuned even across the spectrum. No worries though, they thump accordingly. The bass is perfect IMO. Base drums kick hard and tight and electronic low frequencies come in deep and clean. Rap, classic rock, electronica, 80's rock and metal sound AS THE ARTIST INTENDED with great fidelity. I'm hearing nuances I haven't noticed before. Track list I tested these with: Metallica: Fade to Black vinyl recording Mob Deep: Hell on Earth Sunz of Man: Soldiers of Darkness (dirty bass as intended and the surrounding music is legit) Warren G: Regulate (crisp clean and accurate thump) Megadeth: In My Darkest Hour (great acoustics and clean shred) Slipknot: Pulse of the Maggots. AFI: Aurelia (very high fidelity song, perfect) Kansas: Miracles Out of Nowhere Marilyn Manson: Cryptorchid Blakq Audio: First to Love Highly recommended for under $100. PS, don't be cheap. Go to the AT website and find the Authorised Dealers list, some of them are on eBay and sell for a few dollars more than the nobodies. Don't fall for counterfeits over a $5 difference.
originally posted on bhphotovideo.com
I like the quality of these headphones. Can't beat them for the price. I am writing this review for those considering getting the Case and Hanger Mount kit.I regret getting this kit. I didn't realize the headphones actually come with a soft-case, which is totally suitable. Had I known this, I would not have gotten the kit. The hardcase is nice, but it is overkill for what I need. And it is actually pretty bulky.And as for the hanger mount. I have no idea what that is. I didn't get anything resembling a hanger mount.My advice is this kit is useless. Save the $40 and just get the headphone.
Audio-Technica Professional Monitor Headphones ATH-M40X
Delivery between 29 July – 4 Aug $10
Audio-Technica ATH-M40x Over-Ear Studio Monitor Headphones
Delivery $20.75
Audio-Technica ATH-M40x Over-Ear Studio Monitor Headphones
Delivery $20.75
I'd describe the ATH-M40x as an accurate, flat response, budget friendly headphone. It outperforms other headphones double it's price point including Audio-Technica's more premium ATH-M50x. Why? Because it doesn't add color, remains neutral and delivers an accurate sound representation regardless of the genre of music you're listening to. I realize that sound is subjective. Some people adore the Beyerdynamic DT770 PRO 250 OHM, while I personally feel there's nothing special about them and feel that they're overhyped. I'm sure some people will say that these headphones sound like trash so if I were you I would suggest listening to some sound comparisons on YouTube to see if these sound right to you.These headphones use a clamp design that encloses the sound as ... MoreI'd describe the ATH-M40x as an accurate, flat response, budget friendly headphone. It outperforms other headphones double it's price point including Audio-Technica's more premium ATH-M50x. Why? Because it doesn't add color, remains neutral and delivers an accurate sound representation regardless of the genre of music you're listening to. I realize that sound is subjective. Some people adore the Beyerdynamic DT770 PRO 250 OHM, while I personally feel there's nothing special about them and feel that they're overhyped. I'm sure some people will say that these headphones sound like trash so if I were you I would suggest listening to some sound comparisons on YouTube to see if these sound right to you.These headphones use a clamp design that encloses the sound as close to the ear as possible but because of this ear fatigue typically comes in at the 3 to 4 hour mark. Remember all headphones cause ear fatigue eventually and I feel it's a good compromise for the sound quality you get. Ideally I would only use them when mixing and choose a more comfortable headphone while recording but hey limitations produce greatness.The M40x has a reputation of having peeling ear cups because of the heat produced from warm ears but so far these have held up great.I gave this product 5 stars, not because they are perfect but because they exceeded my expectations overall. This is a product I would keep for a lifetime.
I can't speak for any other model across the AT line-up. These rock!!!! I consider myself an above average listener. My interests cross many genres. I purchased the m40x because the 50's were just out of my range even with eBays thoughtful coupons, what sold me was all the reviews I read that these were tuned even across the spectrum. No worries though, they thump accordingly. The bass is perfect IMO. Base drums kick hard and tight and electronic low frequencies come in deep and clean. Rap, classic rock, electronica, 80's rock and metal sound AS THE ARTIST INTENDED with great fidelity. I'm hearing nuances I haven't noticed before. Track list I tested these with: Metallica: Fade to Black vinyl recording Mob Deep: Hell on Earth Sunz of Man: Soldiers of Darkness (dirty ... MoreI can't speak for any other model across the AT line-up. These rock!!!! I consider myself an above average listener. My interests cross many genres. I purchased the m40x because the 50's were just out of my range even with eBays thoughtful coupons, what sold me was all the reviews I read that these were tuned even across the spectrum. No worries though, they thump accordingly. The bass is perfect IMO. Base drums kick hard and tight and electronic low frequencies come in deep and clean. Rap, classic rock, electronica, 80's rock and metal sound AS THE ARTIST INTENDED with great fidelity. I'm hearing nuances I haven't noticed before. Track list I tested these with: Metallica: Fade to Black vinyl recording Mob Deep: Hell on Earth Sunz of Man: Soldiers of Darkness (dirty bass as intended and the surrounding music is legit) Warren G: Regulate (crisp clean and accurate thump) Megadeth: In My Darkest Hour (great acoustics and clean shred) Slipknot: Pulse of the Maggots. AFI: Aurelia (very high fidelity song, perfect) Kansas: Miracles Out of Nowhere Marilyn Manson: Cryptorchid Blakq Audio: First to Love Highly recommended for under $100. PS, don't be cheap. Go to the AT website and find the Authorised Dealers list, some of them are on eBay and sell for a few dollars more than the nobodies. Don't fall for counterfeits over a $5 difference.
I like the quality of these headphones. Can't beat them for the price. I am writing this review for those considering getting the Case and Hanger Mount kit.I regret getting this kit. I didn't realize the headphones actually come with a soft-case, which is totally suitable. Had I known this, I would not have gotten the kit. The hardcase is nice, but it is overkill for what I need. And it is actually pretty bulky.And as for the hanger mount. I have no idea what that is. I didn't get anything resembling a hanger mount.My advice is this kit is useless. Save the $40 and just get the headphone.
I am a headphone junkie. The ATH-M40x are durable and well made, with an accurate, clear, neutral, balanced sound, which I prefer to the thicker, darker, heavier handed (more bass) sound of the popular ATH-M50. Nevertheless, I sold the M40x because I grew weary of wrestling with them, having to sort them out every time I put them on. They are designed to fold flat to travel in a DJ kit - but I am not a DJ and do not use them while commuting to and from work - after all, they are studio monitors, not portable bling. They flop about and easily get twisted and turned about, and I had to sort them out every time I used them. Probably no big deal for most users, but I sold them with no regrets. Still - they do have a more neutral, honest and accurate sound compared to ... MoreI am a headphone junkie. The ATH-M40x are durable and well made, with an accurate, clear, neutral, balanced sound, which I prefer to the thicker, darker, heavier handed (more bass) sound of the popular ATH-M50. Nevertheless, I sold the M40x because I grew weary of wrestling with them, having to sort them out every time I put them on. They are designed to fold flat to travel in a DJ kit - but I am not a DJ and do not use them while commuting to and from work - after all, they are studio monitors, not portable bling. They flop about and easily get twisted and turned about, and I had to sort them out every time I used them. Probably no big deal for most users, but I sold them with no regrets. Still - they do have a more neutral, honest and accurate sound compared to either the M-50x or the M-30x, and I have owned both all three models. Of course, your mileage may vary. Good luck. You pays you moneys and takes your chances. TT
The sound quality of these headphones is good. Not very detailed and I wished for a little more close up sound, but for the price definitely good.The issue I am having with these is the lack of comfort. The headband applies quite a lot of pressure and the pads are not very soft. Typically I have to take them off after about 40min, rarely do I wear them for 1 1/2 hours - and when I do I have a slight headache and sweaty ears.In a situation where they would frequently be taken off or moved on the head it would probably be fine, but working away for a few hours with these on is not possible.Another issue with the construction is that they flip and collapse when taking them off, so putting them back on is always a pain.Construction quality seems good. Had them ... MoreThe sound quality of these headphones is good. Not very detailed and I wished for a little more close up sound, but for the price definitely good.The issue I am having with these is the lack of comfort. The headband applies quite a lot of pressure and the pads are not very soft. Typically I have to take them off after about 40min, rarely do I wear them for 1 1/2 hours - and when I do I have a slight headache and sweaty ears.In a situation where they would frequently be taken off or moved on the head it would probably be fine, but working away for a few hours with these on is not possible.Another issue with the construction is that they flip and collapse when taking them off, so putting them back on is always a pain.Construction quality seems good. Had them for almost three years now and they still look like new. Of course that's partially because I ended up not using them a lot, so that should be taken with a grain of salt.
The sound profile and weight are the pluses for me yet the cons kind of detract from the headphones. I'm not Audio Technica's target customer as ideally, I want an open back folding headphones that can fold for transportation.The biggest strengths of this headphones is also the weakness: the clamping force. If you are in a club and wanting a monitor that isn't super pricy, these probably work well for you. (I'm not a DJ.) However because they have such a high clamping force, wearing glasses is uncomfortable. I have thin titanium frames (0.96 mm where the headphone clamps to the frame) which are being compressed on the side of my head. If you have thicker frames, (say plastic frames), these would be unusable with your glasses.Additionally, they take a little ... MoreThe sound profile and weight are the pluses for me yet the cons kind of detract from the headphones. I'm not Audio Technica's target customer as ideally, I want an open back folding headphones that can fold for transportation.The biggest strengths of this headphones is also the weakness: the clamping force. If you are in a club and wanting a monitor that isn't super pricy, these probably work well for you. (I'm not a DJ.) However because they have such a high clamping force, wearing glasses is uncomfortable. I have thin titanium frames (0.96 mm where the headphone clamps to the frame) which are being compressed on the side of my head. If you have thicker frames, (say plastic frames), these would be unusable with your glasses.Additionally, they take a little practice to place just right (because of their rotational mobility). I assume over time, this is something you can learn to deal with.Missing features for me: (1) less clamping force, (2) breathable ear pads not made of faux leather, (3) higher quality detachable cable, (4) a designed case that fits all of the M series than only relying on aftermarket cases, (5) headphone volume pot that can fully mute the source. Mobile devices often run too loud at their lowest volume setting (not 0 setting) when you are in a quiet room.Without knowing how these wear and hold up over time (only using these for a week), this set could be a 4 or 5 star. I'm more like a 2.5 star.
The main thing I learned buying my first set of headphones to listen to music in years is how subjective and individual the decision is. After online research, including reading many B&H reviews of several candidate phones I decided to order a pair of Audio-Technica ATH-M40x Monitor Headphones. I should mention that my budget and interests had helped me narrow my choices to the M40X, Senal SMH-1000, and Sony MDR-7506. My review won’t go into the details of physical description or specs that you can get from the B&H description orother reviews. I dropped the Senal for complaints about quality control, and the Sonys for lack of a detachable cord. My perhaps flawed assumption about listening to music of all sorts is that very talented artists, producers, and engineers ... MoreThe main thing I learned buying my first set of headphones to listen to music in years is how subjective and individual the decision is. After online research, including reading many B&H reviews of several candidate phones I decided to order a pair of Audio-Technica ATH-M40x Monitor Headphones. I should mention that my budget and interests had helped me narrow my choices to the M40X, Senal SMH-1000, and Sony MDR-7506. My review won’t go into the details of physical description or specs that you can get from the B&H description orother reviews. I dropped the Senal for complaints about quality control, and the Sonys for lack of a detachable cord. My perhaps flawed assumption about listening to music of all sorts is that very talented artists, producers, and engineers tweak their recordings until they sound just right. I don't want the manufacturer of my headphonesto decide what music frequencies I'd like to hear boosted or suppressed beyond the artists intentions. I suppose that boils down to wanting reproduction that is as flat as possible. Reading reviews can be confusing. I read different reviews that clearly indicated that each of these phones had a flatter response than the other two. Now I’m adding to the potential confusion. Eventually I realized I'd simply have to toss the dice and try a pair for myself. I’m not an audiophile, I'm not a musician, and I'm, uh, mature so probably don't hear so well anymore either. When I get the chance I listen to jazz, classical, rock, blues, R&B, most of which many readers would probably not consider current. I really liked the construction, appearance, quality, and initiallythe sound production of the M40x but something was nagging at me. Some of the music just did not sound right to me. Close, but not quite what memory recalled. To my ear there was either a bit of bass boost or something else that was slightly suppressing the non-bass elements or vocals of the music. There may be a technical term to describe this, but I don’t know it. During my research, it seemed the previously mentioned Sony MDR-7506 headphones received a lot of positive reviews even from people who didn’t necessarily use them as their primary headphones. It seems this model has been around forever with only cosmetic changes so there must be some reason for that. I ordered a pair from B&H and did a comparison. My music now sounded as I remembered it. I continued my comparison for a couple of days to validate and finally decided it was notjust my imagination. My conclusion is that to my ear, for my music, the Sonys are preferable, but the M40x are really nice and might be perfect for you.
Alright, where even to begin because I have so many things I'd like to say about the M40X's. To begin with, after reading numerous reviews on various sites, I had assumed (and in my case, wrongfully so) that the M40X were a clear winner in the audio quality department. I figured that at $99, these must be a bargain, so I ordered one.Now keep in mind that I'm an audiophile and I periodically do quite a bit of blogging/reviews on various gear. Over the past 6 months I've been writing/covering various DAC's and budget headphones (those below $200). So ordering the M40X's seemed like a no-brainer.When they arrived, I was impressed to see the product box they were packaged in. No need to describe everything because there is a wealth of information out there telling ... MoreAlright, where even to begin because I have so many things I'd like to say about the M40X's. To begin with, after reading numerous reviews on various sites, I had assumed (and in my case, wrongfully so) that the M40X were a clear winner in the audio quality department. I figured that at $99, these must be a bargain, so I ordered one.Now keep in mind that I'm an audiophile and I periodically do quite a bit of blogging/reviews on various gear. Over the past 6 months I've been writing/covering various DAC's and budget headphones (those below $200). So ordering the M40X's seemed like a no-brainer.When they arrived, I was impressed to see the product box they were packaged in. No need to describe everything because there is a wealth of information out there telling you what you'll get. I immediately set about to burning-in/warming-up the M40'x by allowing a period of 24 hours playing different test music, white noise, frequency sweeps from 20 HZ to 20,000 kHz, etc. As an aside, it is always good (in my strongest opinion) that breaking in any audio gear (break-in time may vary between different audio components) is essential as the true nature of the sound quality typically reveals itself after this warm-up period.Let the testing begin. So I plugged the M40X's into the following gear for evaluation purposes: iFi ZenDAC, the Fiio K50 Pro, the Soundavo HP-DAC-1, FX-Audio DAC-X6 Mk II, and the Schiit Modi 3+ coupled with the excellent tube-based xDuoo MT-602 Class A Tube Headphone Amplifier. Because of all the positive reviews of the M40X, I was expecting an audiophile's delight - but alas, that was definitely not the case. Initial observations resulted in audio reproduction that was thin, severely lacked lower bass capabilities, and overall music reproduction that sounded colored in the Midrange department. I listened further for hours on end, plugging the M40X's into all of the DAC/Amp combinations mentioned above. Although the sound signatures changed ever so slightly (due to the personalities of the DAC/Amp units), overall, the horrible sound I initially heard from the M40X's was still there.Next, I decided to change pads - and to make a long story short, I tried 8 different ear pad arrangements, models ranging from those advertised for the M40X's by Brainwavz and a half dozen other pad makers. Some actually made the sound worse (characterized by thin, lack of dynamics, no bass, and heavy colorations present with the likes of brass instruments and certain strings in large orchestras). Others improved the sound a bit - but not much - and in one pad scenario by a Brainwavz model - the music has a nasal quality to it. I just couldn't believe what I was hearing. Now mind you, I've long since developed critical listening skills over the past 50 years of being an audiophile - but I'm also reasonable when it comes to expectations.So here is what I heard in a nutshell:1. Bass - sorely lacking - or the EQ may have been scaled back at the factory. To bring it up somewhat (when using the iFi ZenDAC), I had to depress the TrueBass button which elevated the low frequencies - but even then, it was clear that the headphones were just not capable of allowing a lower reach. This resulted in music having less body.2. Midrange - Now here is where it gets interesting. I tend to listen to large orchestra music (i.e. classical, big-band jazz, Latin jazz, and other large ensemble genres). I've long since found that to truly evaluate audio gear, evaluate different instruments as to accuracy, coloration, etc. The M40x's seemed to provide a thinner sound in this region with instruments such as French Horn, Trombone, and some other brass having a colored, almost nasal quality to the sounds with certain recordings. The best way to describe it is to say that some instruments had noticeably incorrect timbres to them.3. Higher treble frequencies - Not as open as many of the competitors, yet not harsh. Not enough air around the instrumentation.4. Sound-staging/Depth - Here is where I was really disappointed. Because of their closed back design, the M40X's had a tighter, more constrained sound stage (definitely not as wide as some of the competition). Depth (front to rear separation) was marginal at best.If anyone is looking in this price range, let me state, save your money and invest in the far superior Philips SHP-9500's instead! Although the SHP-9500's sound very nice right out of the box, and if you are willing to experiment (meaning, removing the stock pads which are glued on to the removable ear-pad rings) by trying different after-market pads, you will be rewarded with audio qualities that punch far, far above its weight.So Alas, I had to send the M40X's back for a refund. Now keep in mind, the headphones I judged these against were the following (all plugged into the same DAC/Amp combinations mentioned above):1. Philips SHP-9500 - $20 cheaper than the Audio Technica's and far superior in every way.2. Brainwavz HM5's - $20-$40 less expensive than the Audio Technica's and far superior.3. Status Audio CB-1's - $40-$50 less expensive than the Audio Technica's - Audio performance elevated substantially with the right ear-pad change.4. Sivga 007 - Same price range as the Audio Technica's, however, far superior with audiophile sound qualities.5. Drop HiFiMan HE-35X - Approx $20 less expensive than the Audio Technica's and have superb audiophile sound qualities, improved even more with pad changes.6. 1MORE Triple Driver Over-Ear Headphones - $39 more expensive than the Audio Technica's, yet vastly superior. Very comfortable - even though you cannot change the ear pads at all.7. Koss KPH-30i - Now here is where it gets interesting, the $20 (sometimes $30) Koss budget headphones are ridiculous inexpensive, yet punch higher than many headphones in the $100 - $300 range. Now go figure. The KPH-30i's make mince-meal of the Audio Technica's.So that's it folks. This Audio Technica ATH-M40X set of headphones is the first set of cans that I've purchased in a long, long time that I've had to send back because of complete dissatisfaction. I cannot recommend these, although I realize that hearing is a very subjective thing and many may enjoy them. And I realize that all reviews are subjective in nature. If you're a serious audiophile, I strongly suggest steering clear of these. Invest your money elsewhere - like those headphones I recommended above.
Bought this for my digital piano. It came with two audio jack adopters (6.35 and 3.5), the larger of which fit my piano.Overall, It's built sturdy with metal frames. The ear pieces provide good sound proof and also fairly comfortable for prolonged usage.Sound quality, combined with the sound-proof ear pieces, feels pretty good. Delivers high details across the spectrum.
If you are worried about your productivity when purchasing gear, and don't want to loose time into comparing hundreds of brand's specs and reviews to see what is the best option for your money, then just grab these headphones and get some work done after getting them into your hands: they won't disappoint. These are meant to be used for monitoring purposes. They are practical and utilitarian. They are very much not for audiophiles. We use them for monitoring audio while recording with a multi cam setup in our studio. They are light, their design is proved to work, the construction is proven to last forever (our older pair is still like new after years of use - and we don't baby them), they isolate what you need to hear, and they are cheap.