MMX 300 (2nd Generation) Premium Gaming Headset

This is not going to be a review of the quality of the headphones as there is already a lot of very valid information and opinion on that topic in the reviews here and on the web. I'm going to focus on a a challenge I had and how it was solved, in an attempt to help others who may experience the same issue. The headphones are designed specifically to interface with the 3.5mm jacks on your computer (or phone for that matter). They come with two cables - one that ends in a combo mic/headphone jack and one that splits into separate mic and headphone jacks. I haven't used the combo, i have solely used these headphones on my gaming PC and used the split cable. Its relevant to say that I use these for Sim racing and need to hear the car and environment sounds, but also communicate with other drivers. So, after plugging in the headphones everything functioned great. But the microphone was very quiet - basically inaudible to other users. This is easily fixed however by the windows settings for the microphone - go to levels and set volume to max and boost to max (+30dB). If you cant find the boost slider then you may need to update your drivers or go through the soundcard dedicated software (which is sometimes tricky to find..). This should get you up and running with all computers. The next thing was i had no idea how much of a benefit 'sidetone' has been giving me. My previous headphones had this built in (Astro A50 wireless - older generation). Basically sidetone takes the unfiltered microphone signal from the mic and sends it directly to the speakers in the headphones, allowing you to hear what you are saying. The isolation these headphones provide from the outside world, plus the relatively loud volume of the sim, meant my voice was completely inaudible to myself. Fine for others in the game hearing me though. For some this wont be a big deal, but for others that have had headphones with this feature in the past it might be very weird. I can imagine living without this feature in a sim racing setup as communications are infrequent, but with other games that require constant communication it would be too much of a compromise for me personally. So, to setup sidetone there are a few options. First, you need to understand that it is not a feature that Beyerdynamic has in any of its regular (non-broadcast focused) headphones. There are 2 options you can try in windows right off the bat. The first is under mic settings and check the box for 'listen to this device'. The positive to this is that it provides clear and loud signal from your mic to your headphones. The well documented catastrophic failing (for this use) is the lag - it is unbearable. Other users may have a different experience, but mine was very negative. The second option is to go through the speaker settings, the levels tab, and find the input that corresponds to the mic (it could be simply 'microphone' or something a bit more obscure like 'FB in) just max the volume slider and uncheck the mute to find which one gives sidetone). Once you've done that you should have good sidetone with no lag. Within the windows environment there maybe more options related to 3rd party software. Musicians may be able to provide more guidance on how DAW software deals with this. I had two different experiences. On my non-sim rig the volumes were just fine and the amount of sidetone was okay. I did have to boost the mic volume up to max vol and 20dB boost (one notch down from max), which introduced a fair amount of hiss into the equation - but I was trying a comparison to my sim rig settings and deliberately turned up higher than what you would need in an office type environment or 'light gaming' were headphone volumes are much lower. Note that both setups only had motherboard based on-board sound, not separate internal or external soundcards. This may give you additional options - but do the research, sometimes the options focus on the sound out and not the sound in. if my sim rig had the same sidetone volume as my other PC then I would probably have stopped there, but the volumes were just too low. The next option get complicated. Sidetone is what we call something that musicians use all the time. For a singer, being able to hear their own voice is critical, and this is called 'mic monitoring'. The setups are quite straight forwards but need additional components. The first thing you need to know is that the mic on this headset is not a passive mic. Its a back-electret design that needs a voltage (not really a current incidentally). You may not know this, but your computer mic-in actually provides a voltage (3.2v on my sim computer, 2.8V on my other PC). Any setup that doesn't provide a voltage between 1.5v and 9.0v to the mic will simply not work. As a note, within this voltage range it seems that the level of voltage doesn't change the level of mic output. its more like a switch for an amplifier circuit in the mic itself. it works or it doesn't. The setup that worked for me was to buy either a USB audio interface (M-Audio 192/4) or a stage type 'personal monitor' - but critically it needs to be something that can supply something called Phantom Power. This is a 48v signal that is 'sent' to the mic. It is designed for high quality condenser mics - i.e. not this one! (desk mounted separate mics for podcasts or studios etc are often condenser mics). So to make this work you need to step down the voltage to something in the acceptable window. On the Beyerdynamic website it states that 48v will damage the mic., it might not, but don't be temped to try it - you may regret your decision. Instead a component like the Rode VXLR+ adapter is what you need. Plug that in in series with your mic-in in your new piece of kit (m-audio for me), hook up the device to your computer using suitable cables (XLR to 3.5mm jack for the mc and 1/4" jack to 3.5mm jack for the line out from your computer). Enable phantom power to power the mic, and you now should be able to get a good loud mix of sidetone direct from the mic and game audio (or whatever) from your computer. Note: On the Beyerdynamic website it states that you need to find a Phantom Power to T-Power adapter. You do not need to do this. T-Power is 12v, could damage your mic and is exceptionally difficult to find as it is basically obsolete technology - Phantom power replaced it. To be accurate what you need (and what I created) is called 'Plug in power' - a low voltage Phantom Power, just like the soundcard in the computer. This journey took me many hours and a lot of wasted time as I discovered more things I never knew. I had to back out of a few rabbit holes and return a few items that didn't work out. Just be aware that if the windows options don't provide the volume you need, you may need to return the product for a SteelSeries/Astro/etc that do have sidetone, or jump in with both feet and start buying cables and electronics to do the job with the beyers. The end result is I have high quality headphones, and clear loud sidetone that is controllable and mixable, and the ability to control my speakers from the same USB interface. Additionally my electric guitar may be dusted off an I may try my hand at recording - that is really what the USB audio interface is designed for - not us gamers! I hope this helps someone that has similar questions. And all of the above is correct to my knowledge, but my knowledge is less than a week old, so if anything in the writeup above is incorrect, i ask that you be constructive with feedback!

After years of bouncing between mid-range and cheap gaming headsets, I finally decided to invest in a truly premium pair, and the beyerdynamic MMX 300 PRO has exceeded every expectation. Yes, they’re expensive—and I hesitated for a while—but after using them, I can confidently say they’re worth every single penny. The audio quality is exceptional. Powered by the Stellar.45 drivers, the sound is detailed, balanced, and immersive—perfect for competitive gaming where directional audio matters. Footsteps, distant gunfire, ambient noises—they all come through crystal clear. Music and movies sound amazing too, so it doubles as a fantastic pair of over-ear headphones even outside of gaming. The microphone is studio-grade—clear, responsive, and without any of the tinny distortion I’ve experienced with cheaper headsets. Whether I’m in team chat or recording content, my voice sounds clean and professional with no effort on my part. Comfort-wise, this headset delivers. I’ve worn it for 6+ hour gaming sessions without ear fatigue or pressure headaches. The build feels premium—handmade in Germany with attention to every detail. Even the materials used (the padding, the ear cups, the metal frame) feel solid and built to last. Setup was simple, and compatibility is broad: works seamlessly with PC, Xbox, PlayStation, and Nintendo Switch. I also appreciated the ultra-fast delivery—I received mine within 12 hours of ordering, which was a huge plus. If you’re on the fence about making the leap to a high-end headset, don’t wait. The MMX 300 PRO has been a game changer for me. It’s the perfect blend of audiophile sound, professional mic quality, premium comfort, and durable design. Highly recommend it for anyone ready to level up their setup.

omg, I have purchased many, many items from Amazon and this is the only one I've returned. This thing may be a good sounding unit, but I'll never know because for me it is unusable because of the HORRIBLE, HORRIBLE, HORRIBLE creaking with even the SLIGHTEST movement, i.e., constant CREAKING. are u kidding me Beyerdynamic--made in Germany?? the creaking makes it sound like it was pulled out of the bottom of a dumpster. It comes from everywhere, both sides, all the time. this isn't just one defective unit because every pivot/joint in the headset wouldn't be bad if that were the case. it's just poorly designed/manufactured plastic, the metal in the product notwithstanding. I have owned lots of headphones over the years and the only ones close to this bad were AKG's 701/702. Anyway, they're going back tomorrow, hopefully YMMV! Also, although having worn them for only a short time, the velour earpads felt a little warm and the earcup and headband clamping/pressure was a tad much for me but this is completely subjective and might be great for you. So far out of all the Sennheiser, Focal, HifiMan, Shure, ATH, AKG and other "audiophile" headphones I've had for listening to music, the Logitech G Pro X, used for gaming, have by far been the most comfortable I've ever worn--I literally don't want to take them off! But not good for music, so I wanted something like the MMX300 I could use for both with my laptop. In the meantime, I remembered a mic was available for my V-Moda Crossfade 2's and ordered that. I think that'll be my solution. Good (not accurate, but "fun") sound signature and not bad mic. Not as comfortable as the Logitechs but definitely moreso than the MMX300. BTW, please don't mention "dry"/synthetic lubes--it's absurd that you would have to lube a "quality" product like a Beyerdynamic. I've never done that with a headphone and I'm not about to start now.

I am absolutely in love with these headsets super versatile games, music, movies all sound fantastic. I have tried all the top end headsets on the market right now. I would say the top two you can get are these and the gsp 600 with the artics pro+dac behind them. I tried these with my gsx1000 and they do not have enough amp to drive these it says 32 ohm but you will definitely need at least 300 ohm to get the most out of these bad boys. I use them with my Soundblaster AE5 I use the high gain 150-600 ohm and they sound fantastic for games I boost the lows and highs, when I listen to my music I will just boost the lows a little. I have never owned a headset where I could use it for everything just change my EQ for different stuff. The comfort is awesome, the sound is fantastic, the mic is a beast these are perfect for me never been happier with a set of headsets. You don't really hear about these headsets I guess beyerdynamic didn't go to the extreme on marketing them but man these are a gem. When it comes down to it my main use for a headset is gaming I am a gamer to me. The most important part for gaming are the lows have to be punchy and I need some passive isolation to keep me immersed in the game I can't stand being sucked into a game only to hear a lot of noise around me totally breaks the immersion and these have excellent passive isolation without being tight around the ears and the bass is deep and punchy. Kind of rambling off but I can't recommend these enough. One main thing I didn't mention when I play fps games I have never heard a headset that can pinpoint where the enemy is it is hard to explain but I can actually not only know what direction but also the distance from me. Just awesome I will share some of my specs that I use for these headsets on the Soundblaster AE5. Gaming= 7.1 Headphones, High Gain, 4 4 0 -2 2 2 1 2 4 2 EQ, Surround 20, Crystalizer 30, {32bit 96000HZ} 5.1 in windows sound settings make sure you select 5.1 settings in your game always want it to match what you have selected in windows sound settings Movies= The same as gaming I think good bass adds alot to your movies Music=Direct HP, High Gain, 2 2 0 -2 2 2 1 2 4 2 EQ, Surround 10, Crystalizer 30, {32bit 192000HZ} Stereo in windows sound settings

I really wanted to love this headset. I bought it expecting legendary German engineering and studio-grade audio, but my experience was a nightmare of troubleshooting that ended in physical pain and a return. The Good: When the audio actually worked for brief moments, the soundstage was detailed and crisp. The headset itself is comfortable. The Bad (The Dealbreaker): The connection where the cable plugs into the ear cup is completely defective. I spent an entire evening troubleshooting, thinking the issue was my drivers, my Sound Blaster Play! 3 dongle, or Windows settings. I tried everything: Swapped between the PC (Pink/Green) and Console (Single) cables. Tried multiple sources: Sound Blaster dongle, front PC ports, and direct motherboard rear ports. Mess with every "Realtek" and "Privacy" setting in Windows. The Reality: It turns out the internal port on the headset is loose or poorly soldered. The microphone and audio ONLY work if I hold the wire in a specific, awkward bent position. The moment I let go or move my head, the signal dies. I even tried the "firm push" trick recommended online to ensure it was seated, pushed it hard enough to hurt my thumb, but there was no "click" and the positional connection issues persisted. Conclusion: For a headset at this price point, I shouldn't have to act like a human antenna holding the wire "just right" to talk to my friends. It is unacceptable quality control. I am returning this because for the price it should just be a plug and play. P.S. this review is A.I. assisted because I used A.I. to help me troubleshoot every possibility so it has logs of everything and can summarize it best.

I first bought this headset just over 2 years ago because I wanted something all-round quality wise that I can enjoy for many years. I was coming from the Sennheiser Game Zero which fell apart on me after 2 1/2 years. So far I still love them and will continue using them for a long time. However the headset is not without it's flaws. Let's start with comfort. These had a great seal even with the original pads. However those original earpads were far more firm than I would've liked. They did not feel premium for the price paid and I'd get soreness within an hour or 2 or use when paired with the clamping force. To some they have no issue but after switching to Dekoni choice leather pads they were infinitely more enjoyable to wear on my head. Seal was better and soreness went away completely. I do however highly recommend going for real leather pads like the sheepskin variants as the pleather began peeling off after only a year or so. No issue with the headband until recently the pleather on that as well has begun falling off. This resulted in the Velcro peeling off the strap itself rather from itself, resulting in that image attached.. otherwise buildwise everything else has held up to time. Noise cancellation was in line with other headphones I've worn, but the Dekoni pads improved them in that regard. On to audio. I'll start of the physical cable as it relates. Do first make sure it's plugged in all the way as it's a tight fit. It's held up to time just fine but the volume control has been extremely poor since I bought them. I'd imagine this might be something they fixed by now, hopefully. It gets moved easily when brushed up against something, and when it does, the audio fluctuates between clear in both ears to uncentered and hollow-sounding. As long as I keep it maxed it's fine most of the time, so otherwise it's rather useless in than respect. For the audio itself, the high treble was something that took a while to get used to, but not as harsh as something like the ATH-50s were. One great benefit of the treble though is the amount of detail it provides. I'm not exaggerating when I say I could hear so many small audio cues far better compared to the Game Zeros which were flat and muffled sounding when put side by side. And on that topic, sound stage was much better as well. No issues pin pointing any sounds. The bass can go fairly deep however isn't heavy or that exciting for music. For music they respond greatly to a bass boost and also my Soundblaster's crystalizer setting, as otherwise the audio is somewhat too neutral to me. Lastly the microphone. This was the biggest selling part from me as I was looking for a professional sounding mic on a headset while having audio great for music/games. As far as I'm aware this is as good as it gets for headsets and the only thing that comes close is the Antlion mic. The only flaw being that it is not detachable. Pop is minimal and volume/clarity is far better compared to Game Zero and others. With my Game Zero and Cloud 2s I always had an issue with the input volume but none with this one. Other than that there's a lack of features for the price point but nothing beats the mmx 300 in regards to all-roundedness, so I still find them to be worth the price. However to be perfect they require some earpad replacements, probably an amplifier, and bass boost for music—only then they become 5 stars worthy.

I've owned a lot of headsets, mostly around the $100 price range, but nothing close to this expensive. I also know almost nothing about audio, so I wasn't sure what to expect. First impressions upon opening the box were that it was a step above in build quality. Not only did it come in a high-quality travel case, but it just had a quality weight to it. The cord isn't braided, but it's a lot more heavy-duty than even your typical braided cord. Now for the sound quality. My understanding is that these have a break in period ("burn in period") that lasts maybe 10 hours, after which the sound quality improves. Im not sure if that is the case, but I do know that the more I use them, the more I love them. To me, it just sounds like the audio has more depth. When I go back to my old headphones, the audio just feels hollow in comparison. Everything in my games sounds so crisp and balenced. Comfort-wise, I have no issues with them. I have a big head, and these do not hurt my head like some headphones do. They are also suprisingly breathable. The mic quality is also superior. Overall it's expensive, but worth it. The best way I can describe it is going from 60hz monitor to 144hz monitor. When all you have played on is a 60hz monitor, you think you're doing pretty good, but when you finally get a 144hz monitor, there is no going back. Once you purchase these, you will realize what you are missing.

Let me start by saying I am coming from a $40 pair of steelseries that were old and broken down. I tried switching to Bose QC II headset.. but they were so atrociously bad I returned them to Bose with prejudice. That sent me on a months long audiophile rabbit hole that had me searching for a headset that sounded good and, just as importantly, had a microphone that didn't' sound like Alexander Graham Bell's early phone call played back from a wax disc (you can google that if you don't know what I am talking about). Enter the MMX 300 2nd gen with about the best microphone attached to a headset on the market. I work remotely and speak to coworkers frequently, as well as call friends over voice chat. It's not uncommon to have hours long gaming sessions with friends and having a microphone that sounds decent is a must for me. For the life of me I could not understand how many $200+ headsets are out there with mics that sound the same as $10 headsets. Ultimately I realized that people who care about mic quality just buy a blue yeti for $120 and be done with it.. but I wanted to stick with the convenience of an integrated solution. I can say that I am happy with the mmx300. The sound quality of the mic and headphones blows what I had, and the Bose, away.. but I am now looking at upgrades so I can't say I am fully satisfied. Dac/AMP - sound blasterx g6 Music service- Tidal Pros: 1. Clear mic, sounds much better without wind filter for me so took it off. Running with no processing on mic input. 2. Music sounds very good, the first week or two I was genuinely impressed by the detail I had been missing. I am sold for life on the value of good quality headphones and am looking at headphones several times more expensive than these as my next pair. Cons- 1. After a few weeks the sibilance is starting to annoy me on many songs. All though the detail is great, the upper end feels harsh and tiring. I could keep playing with EQ but I don't find that a good solution. 2. These are not comfortable headphones. The earcups are warm, stiff, and itchy and become bothersome after a couple hours. The headband is difficult to adjust and rigid. 3. When speaking, your own voice sounds muffled from the sound isolation of the headphones. This is actually a problem because sidesound solutions typically have lag. 4. Something seems off about the cable, it always feels in the way and about to get tugged out. feels heavy and annoying. The volume adjustment knob is too high and rubs against your chest when you turn your head. A good cable should feel invisible, not like a heavy chain around your head. 5. They aren't really mobile give how much the mic stands out. A retractable or detachable mic would have given these headphones a lot more life since they are closed back and low impedance, meaning they are capable of being drive off a mobile device. This was a huge oversight imo.. leaving these pretty much only a desktop headphone pair where as even my old $40 headphones with the retractable mic traveled freely with me. In the end this is a solid audiophile quality headset with a good mic.. it's a good product, but lacking in a few area to make it great.