Moondrop Quarks Earphone Closed Anterior Cavity Micro Dynamic Driver IEM Earphone (with mic)

Okay, I am going to try my best not to overhype these like I see a lot of people do with any IEM that they like, but these are really good. Let's start with my IEM journey so far.Besides for a couple tws pairs, these are my first IEM. The main reason I bought them: low price and I figured it would be a good enough way to see if I could stand IEMs for daily use over headphones. When I first got these, I of course started to compare them with my main headphones at the time, the Yamaha HPH MT5 with brainwavz angled pads. The first thing I noticed coming from those headphones is that the quarks obviously are lacking in sheer resolution. But again, that is obvious. These are $13. MT5s are $100. Trying to ignore that, I started listening to some music. Initially, the quarks lacked any kind of bass for me simply because the bass is boosted on the MT5. But what I remember most from that initial day of testing is being mind blown that the tuning on the quarks overall sounded more "correct" to me than on my headphones. I didn't really know why at the time, but the tonality of the MT5 was just off. And I preferred the tuning on something that is $13. That alone was worth it.So with that, I researched other IEMs. Long story short, I landed on the Tripowin x HBB Mele and Moondrop Aria. Mele filters caused channel imbalance after 2 weeks, and the Arias broke in a day.I also got the TRN MT1 for a great price, so I tried them and they are okay for what they are. V shaped tuning, nothing special but I was surprised that I can even enjoy music on them for how cheap they are.So... after that bad luck with qc on the 2 most expensive pairs I tried... I went back to the quarks. I had used them for about a month or 2 as a daily driver before chirstmas because I wanted to get used to them. I don't believe in driver burn-in, but I believe in mental burn-in. Man, are these things great now that my brain has fully gotten used to the tuning.The sub bass is still pretty much non-existent to my ears, but I think that is because the driver is just too small to reproduce those frequencies. Something that did change since using them more is now I feel that there is an acceptable amount of mid bass/warmth in that area. Not a ton of punch, but enough to where I don't feel like there is absolutely nothing.The mids sound... fine? I don't really have a ton to say because I am not super experienced with audio stuff yet. I will say that obviously these are lacking in a bit of detail and separation, but it's still surprising what detail and separation exists. I still find myself getting surprised at picking up some smaller details in tracks that I listen to. I just never thought I would be able to hear what I can with these. They are certainly not the best, just shocking at the price. I will say that vocals can generally get a bit shouty to my ears though sometimes. Just something to keep in mind.The treble on these seems adequate enough. I sometimes notice things getting a tad harsh to my ears but I haven't noticed distortion or anything with cymbals. I think this kind of blends in with the “shout” I was talking about. Again, surprising for how dirt cheap they are.TL;DR - Better longevity than more expensive stuff I have tried, but I have had terrible luck. The bottom line is that these are very enjoyable to listen to, and in my opinion, a no brainer for how cheap they are. Just try them, give them a REAL chance, and if you don't like them you aren't out much money. Build quality, though not great, doesn't feel like they will fall apart. I still feel like I have understated how much I like the quarks, but I am trying to be as realistic as possible here.

The sound quality and comfort levels are pretty good. Mine lasted me almost a year before the wire started disconnecting on the right side. Pretty decent for the price.

Summary: it is an extremely affordable earphone, that sounds great, very portable, feels sturdy, and has better sound quality than what you can get at the gas station or at your local retailers.What is it? This is what is referred to as an IEM or in-ear-monitor. It is different from an earbud in that it goes in your ear rather than hang on the ear. The advantage to this is that sound doesn't leak, you can listen to your content (ie. music, movies, phone calls, podcasts) without worrying if the person next to you will hear it too.Where is this product coming from? This product is sold by a reputable Chinese company who ships it to you at no extra cost. I have bought other products from this company with an overall positive experience. Although, tracking is no up to date through Amazon the tracking number provided can be searched on many websites such as 4PX or ParcelApps.com. It takes time for it to be shipped, but it has never taken more than a few weeks once it does; which considering from where it is coming from it's impressive.Who are they? Moondrop is a company that specializes in Chi-Fi (Chinese Fidelity), they are a company primarily focused on audio quality. For this same reason even though the Quarks feels light and plasticky, the cable feels smooth and everything about its design is deliberate.Why buy these? As mentioned, Moondrop, is a Chi-Fi company, even so it is shocking how well they sound for the price. They have no business sounding as good as they do. The bass is well controlled and won't rattle your head, the mids (instruments) sound clear and the highs (vocals) do not feel harsh on your ear drums. Because they are light they are easy to carrying around and do not irritate the ear like some of the larger earphones do. For their price they make for a great stocking stuffer, or even as back up earphones if you already have a good pair.I have praised them long enough, but they do deserve it. Moondrop knew what they were doing and their 2 years of research and development for this product shows. My only complaint is that due to their size they will fall of my ears, to be fair it is mostly the left side and I might need to change the size of ear tip. The build also feels cheap, again they cost $13 or $15 (with a mic), but they also feel durable even if you were to throw it around (please don't).I ordered a second pair with the microphone, when I ordered the first time that wasn't available, to use with my phone which still has a headphone jack. It is a good gift, for others or yourself, it is a great value for the sound quality at this price. Again, even as a backup earphone you will not regret buying it.

Are these cheap? Oh yea.. Do they feel cheap? Absolutely.. Are they good? 100% Will they replace your $1200 or even $120 IEM's? Obviously not.. But they can be kept with you at all times just in case you might need a set of in-ears and these are not bad at all.

So I wanted something cheap and cheerful to carry around where using a more expensive set would be silly or irresponsible, and after a bunch of research, watching and reading reviews, I decided to give the Quarks a chance.Initially impressions: for the price this is amazing and I get why it's getting so much praise.After longer use: yes, you get what you pay for (and it's good for the price), but as the cable is non detachable I also realized that there was a significant bleed through between the channels, you never get proper stereo separation with this set so keep that in mind.Wouldn't recommend these at this price range either, there are better sets out there.

these replaced earbuds that were not loud enough. Increase in volume. Good price good sound good reviews omline.