This is my review for the NiceHCK DZX-14BA flagship. Keep in mind that this is my first review and these really deserve one. NiceHCK may become more and more familiar, you better know them for their HK6 model for example. The NiceHCK DZX-14BA doesn't have any reviews so far, nor are they really known anywhere as far as I'm aware. This should definitely change, as these are some very decent IEMs for a rather affordable price.

Foreword:

Now, these are my second flagship BA IEMs, the Hisenior T12U being the first ones. Both have their own outstanding qualities and a further review about the T12U will follow soon. I listen to a wide array of music, maybe metal and rock are the only genres which I don't have playing a lot, otherwise, I listen to what sounds good.

I want to structure my review into a few categories and try to keep stuff as simple and understandable as possible.

Now lets dive right into it!

Comfort and Isolation:

Really, I think comfort is the most important first factor to consider when it comes to IEMs or headphones in general. If I can't listen to music on a headphone/IEM for more than a few hours without having to take them off or out my ears, then I'm not satisfied. I don't want to perceive any pain because the IEM has some sharp edges or something, but I'm very happy to tell you, these are VERY comfortable.

The acrylic material never gets irritating and even though they are rather big, they never feel awkward and provide the best isolation in any IEM I've owned so far, easily! I can easily have them in my ear for quiete some time and they won't get uncomfortable what so ever.

Bass:

They have very clear Bass, neutral, never overwhelming and depending on the genre, it may either hit you rather hard or it stays neutral and lets the Mids and Highs shine through. These are no basshead IEMs, but the quantity should satisfy practically anyone, especially those looking for a neutral signature. It's quick, detailed with no perceived bloat what so ever. It's very clean bass! Keep in mind that tip selection also changes the Bass response, so you're able to play around with that until you find your match.

Mids:

Now, I'm really most satisfied with the Mids they provide. The Mids are huge and I'm quite sure that 8BAs are being used for the Mids alone, which explains their vastness. You feel engulfed by them, able to freely pick out details and the slightest rasps in voices for example. They are very coherent and probably the best Mids I've come to hear in any headphone so far! They have this natural feel to them and since I think that Mids are the most important thing to get right in a headphone, they've nailed it. I would even call the Mids addicting because you want to go through all your albums again picking out all the details you've missed before! If you like good Mids or Vocals in general, you'll love these! You'll feel like you're having a very intimate moment with the singer at hand and at times it feels strangley personal, in a very good way.

Highs:

Clear and sparkly are the words I'd use to describe them. For some, they may become too much in some tracks, but I think the combination of the crystal clear Mids and Highs make for a very coherent signature. They don't have the vastness compared to the Mids, but that wouldn't make sense and I rather prefer the big Mids opposed to "medium" sized Highs and Mids at the same time.

Soundstage:

Atmospheric. Very atmospheric, thus the soundstage is rather wide and they are perfect for tracks which generally want to create an atmosphere in the first place, for example, binaural-style tracks. If you like your IEMs to be very close and intimate, these may not be fitting for you, but if you like IEMs to lose yourself in, which offer quite some vastness, then these are a safe bet. They actually sound quite open and there is always a lot of air around instruments and further elements in general.

Build quality and finish:

Build quality is very good, but my unit had some slight blemishes, as in, you feel over them and they have some slight irregularities, which may easily be resolved by applying some sandpaper. It's probably a bit of nitpicking because I don't have anything to complain about otherwise. As you can see in the pictures below, they look stunning, at least IMO. You have quite a variety of designs to choose from, I decided to go for the design at hand because of the rainbow style colors!

General thoughts:

If you never heard an BA flagship before, or really an IEM with so many BAs, these will easily blow you away because of the Mids especially. As mentioned, the usage of 8BAs for the Mids alone is a very very good design decision IMO. Yes, they might've used more BAs for the Bass, thus the Bass would be fuller, or used them for the Highs, thus the Highs may be fuller, but I think that most of the details are to be found in the Mids! These will make you realize how amazingly much stuff is going on in this frequency alone, some tracks need a lot of relistening with these because you can't stop picking out new details with every re-listen.

Finally, some pictures for your satisfaction:



If you want to give me any feedback, or tips on how to improve my next reviews, please let me know! If you have any questions about this IEM in general, pelase feel free to contact me.

This is my first review.
 
I will cover a few points about this headphone as best as i can and will then compare them to some other headphones mainly the Sennheiser HD700.
 
Price:
I got these for 167€ which is basically a steal considering the sound quality of these. 

Built:
These are built very sturdy. I don't have them long enough to judge how they will last over the course of the years but they are made of aluminum and very hard sturdy plastic. The earpads while looking good quality are from what i've heard not that long lasting and will flake with time. Same with the headband. Again, this is only what i've heard. 
 
Comfort:
The MT220's are pretty comfortable but i think the earpads are a bit shallow and the earcups are a bit small so people with big ears might have some problems. I don't. I think the headband is comfortable and so are the earpads, but i will replace the earpads with some brainwavz earpads soon.
 
Sound:
I must say that i haven't burned them in for that long because sadly my left driver got a bit of a rattle when i play the bassshaker test from this website: http://www.audiocheck.net/soundtests_headphones.php and so i didn't had the motivation to let them burn in all day and all night. I already ordered a second pair and will test if these have the bass rattle too and return the current ones. The burn in at this time is about 20 - 30 hours. But let me say the already sound extremly good.
 
But lets move on to the sound. 
 
Right out of the box they sound they sound phenomenal. I plugged them into my iPod and my Xonar Essence STX and on both they sound very very good. The main reason i bought these is to listen to music in bed with my iPod / iPad and or at work with my Xonar DG.
 
Bass:
The bass is very good. It's tight, controlled, a "bit" emphasized (which i love) and fast / detailed. It doesn't bleed into the mids and its never overwhelming.  Compared to my Sennheiser HD700 the bass is not as textured but it comes so close its almost scary. Compared to the Fidelio X2's the bass is way  waay less present but the X2's the bass isn't as fast and punchy as on the MT220's. At last compared to the new Sony MDR100AAP the bass takes the Sonys to school with much more control and detail. Where the Sonys bass sounds pretty bloated to my ears, the MT220's bass plays in a whole other league.
 
Mids:
The mids are, while to my ears a tiny tad bit recessed, very neutral and balanced with the rest of the frequency. Female or male vocals come up beautifully and detailed and overall the midrange is just very pleasing to listen to. I heard that the midrange opens up with further burn-in so i am looking forward to that. Compared to the HD700's the midrange isn't as airy and open but it's not as reccesed as on the Sennheisers. On the HD700 i had to use an equalizer because vocals sounded so distant but with the equalization i got them to perfect volume with the rest of the frequency. On the MT220 i don't have to use and equalizer. The mids are just as good without. Compared to the Fidelio X2's the midrange is more balanced and alot "colder" and more neutral but the X2's are known for making the midrange sound rather warm. I won't compare these to the Sonys because it's just unfair IMO. The Sonys midrange just doesn't sound good anymore when you listened to the the MT220's.
 
Trebble:
While i first thought they were a bit sibilant and shrill i noticed with further listening that they are just so extended that i had to get used to the higher frequencies that these headphones give. The treble is what you could call pretty smooth with maybe a tad more volume but that is fine and adds the overall sense of more detail. Overall the treble is really good and pretty detailed as well. Compared to the HD700's they are not sibilant and annoying at all. Unequalized the HD700's make your ears bleed.. not THAT bad but i had to tone down the treble about 8 to 10db to make them non fatiguing. Again on the MT220 i don't have to do that. Compare the treble to the Sonys and you notice that the Sonys are rolled off and a lot quieter as on the Yamahas. Overall i like the treble a lot more as on Sonys. On the X2's the treble can sound artificial. One of the reasons why i will send them back (The X2's ofc).
 
Soundstage / Detail:
The Soundstage on these, while not beeing overly big, is very good and big enough to let the track breathe freely. Whats so special about these IMO is the detail and the clear lines between instruments, something which i came to love on my HD700's. They have some AMAZING microdetail. I hear things which i haven't heard on my HD700's. Not because the HD700's doesn't show them but the Yamaha's just reveal them clearer and show so much detail that you hear literally EVERYTHING that is on the track. That means you also hear a bad quality mic from vocals and sometimes even floor noise in the track which i didn't hear on the Sennheiser. Compared to the Soundstage and airiness of the HD700 the MT220's can't compete on the same level. But its a closed back headphone so it's expected. I would compare these to about the same Soundstage as the X2's but that is just from memory.
 
Conclusion:
Overall i am very satisfied with these headphones and i can recommend them to anyone who is on the lookout for some amazing closed back headphones. If you can get them under 200€ or $ they are a steal but i would even go as far as saying that they are worth 300 - 400€ as they were when they were released. The biggest pro for me is that they are sturdy, easily driven by an iPhone or iPad and i don't have to worry about them breaking when i carry them in my backpack.
 
Thanks a lot for reading my review.