Dual-BA in-ear from Korea with in-house developed and manufactured Balanced Armature drivers. TSST, the company behind the EARNiNE brand, is a joint venture between Samsung and Toshiba.



Recent Reviews

  1. ustinj
    EN210 -- exceptional value and design
    Written by ustinj
    Published Dec 28, 2017
    Pros - Attractive sleek design, comfortable fit, impressive tuning regardless of price
    Cons - treble extension, fixed cables

    The EARNiNE EN210 is a dual balanced-armature driver in ear monitor, utilizing drivers created in-house by TSST. The driver setup, per earpiece, includes a full-range driver and woofer. EARNiNE was graciously able to provide a sample for me to test and review.

    At the moment the EN210 is not currently marketed for sale outside of Korea. However, it was stated that if anyone were interested in picking one up, they could do so by emailing to


    They will help you purchase one. Their shipping was extremely quick and satisfactory, delivered within a matter of days to the USA.

    Packaging and Accessories

    The packaging is fairly simple, it doesn't attempt to be flashy or luxurious in any way. It does get the job done. Inside of the cardboard sleeve, the EN210 are packaged in a black textured box that opens to reveal the IEMs and case inside.


    I do like the case, it is semi-hard and very spacious. The IEMs wrap nicely into a small bundle and don't really fight back when you place them in the bottom portion of the carrying case. It is a bit taller than really needed, but regardless it looks very good and works fine. It would be more easily pocketable if they had cut the height in half, however.


    Tip selection is rather minimal, though I find the included foam tips of fairly good quality and are one of the few that don't drastically muddle sound (cough-Comply). They are very similar to those included with the Acoustune HS1501/1551.


    The EARNiNE EN210 has a very attractive, aesthetically-pleasing appearance. The shells are a dark, transparent smokey brown revealing its tightly packed and neatly organized innards. You can see parts of the drivers as well as the sound channels leading to the nozzle. Imprinted upon each housing is the EARNiNE logo (which is very elegant and looks great).


    The shape is designed to be very ergonomic, reminiscent of the very comfortable Shure/Westone counterparts (except with more defined, aggressive-looking edges). It looks and fits great, in my experience. It's a rather comfortable housing, fitting into my ears securely with a medium depth and consistent seal. The shape is also on the flatter side, it sits flush inside my ear and I can even lay on a pillow ear first without any pain or discomfort (however, sound is slightly affected).

    The nozzles are made of metal contrasting sharply with the IEM's shell color. It adds rugged aspect to the EN210, a touch of raw industrial design. The nozzle is on the longer side, tip compatibility should be fairly easy to work with (they are not as wide / thick as Campfire nozzles, however). There is a grill covering each nozzle to prevent debris or wax from entering.


    The cables appear to be detachable, but they are NOT. The cables are actually fixed -- this is a shame because it looks like such a perfect shell type to incorporate some sort of MMCX/2-pin connector. This is one of the letdowns of the EN210, as there are so many great aspects to this IEM but a critical point for many potential buyers is a replaceable cable.

    Onto the cable itself, it is a twist-braided 3-core cable, splitting into individual 2-strands for each channel. It is very soft / supple and makes little to no noise. There is a splitter with a chin slider, both work fine and have no real issues. I do notice that the strain relief on the right-angled 3.5mm jack is very lenient and will bend without much resistance, which may be of concern later down the line. The IEMs themselves don't seem to have much relief, but the earhooks and black plastic attachment points should work fine in place.

    Regardless, build quality seems rather respectable. Only time will tell in the case of the EN210's longevity/durability.

    Sound Impressions

    Soundwise, the EN210 varies noticeably depending on the source it is being driven from -- a lower output impedance will reproduce a downward-tilted, slightly laid-back sound signature. Bass would increase in quantity, and upper midrange / treble takes a relatively close seat behind the lower midrange. A higher output impedance will create a more balanced sound signature, in which bass becomes more aligned with the vocals, and the lower midrange no longer has an upper hand over the upper midrange. Lower treble also gains a bit of energy, giving an improved perception of detail. In both cases of low and high output impedance, the EN210 doesn't have very impressive treble extension -- it does not produce a noticeable sense of 'airiness' or spaciousness.

    Here is a general frequency response of the EN210.



    The EN210 has a well-extended and pleasingly balanced bass presentation. Sub-bass is present and rumbles at lower registers, though it doesn't have the texture of a good dynamic driver IEM. Mid-bass is controlled, not too emphasized nor overpowering the sub-bass. From what I am hearing, the overall speed of the bass is also not as quick as your typical balanced-armature woofer; it feels a tad less snappy (more natural), but not as drawn out as your average dynamic driver.

    With a slightly higher output impedance, both sub-bass and mid-bass are kicked down a notch. However, I think the sub-bass becomes a bit less noticeable and rumbly, while the mid-bass retains its impact.


    With a low output impedance, the lower midrange is fuller and more pronounced, producing vocals with thicker presentation. Upper mid-range sounds to be slightly behind the lower midrange (slightly is the key word), vocals don't have the immediate edge that cause female vocals to sing and shine. In this case, vocal presentation is really up to user preference.

    However, with a higher output impedance (tested with ~5 ohm), the midrange presentation becomes noticeably more energetic. Lower midrange decreases in quantity and fullness. As a result, the upper midrange sounds more forward and vocals feel 'cleaner'. They don't feel sound as thick and cozy as they did prior, but in turn have improved perceived resolution. Female vocals sound crisper and have that desirable 'bite'. I personally really liked this variation over the darker signature, it's very pleasing and natural to my ears.

    The source impedance's effect on the sound signature may be a good thing or a bad thing -- some may like the more laid-back signature, some might like the cleaner and leaner signature, and some might like both. Many smartphones (which still have headphone jacks) and some DAPs have a higher output impedance, but the majority of high-end portable audio devices have a lower z-out. This is something to keep in mind when matching the EN210.


    The EN210's treble presentation is ultimately ordinary. It doesn't have any exceptional properties in extension, resolution, or sparkle. On the bright side (or, actually -- not literally bright), the EN210's treble is very rarely, if ever, harsh or strident. With a lower output impedance, lower treble is lesser in quantity than the upper midrange, giving the IEM an overall darker and more laid-back tone (even then, it's only slightly dark).

    With a higher output impedance, lower treble comes up to level with the upper midrange. I would not call this IEM dark, especially with a higher z-out source. Dare I say, "balanced signature"?

    However, the downfall in both cases (low and high OI) is that the treble does not have very good extension in the upper regions, it does not have the airiness and spaciousness that you can find in other models.


    I purchased these IEMs for the sake of comparison; I was so impressed with the EN210 that I picked these up in order to directly A/B them.

    Comparison to VSONIC GR07 Classic

    When switching from the EN210 To the GR07 Classic (hereon referred to as GR07), it is immediately noticeable that the GR07's bass has a bit more impact and slam, while not necessarily having more quantity. The GR07's bass also has more natural, dynamic texture. The EN210's midrange is more resolving, vocals have greater speech intelligibility and clarity than the GR07. Female vocals sound far better on the EN210 than the GR07. The GR07's mids also have a more intimate staging with a smaller sense of size. The GR07 has a more extended, sparkly treble region -- with a higher output impedance, the EN210 comes closer to being on the GR07's level but still sits slightly behind.

    If you have ~$100 and are deciding between the two, it would ultimately be determined by user preference. If your desired sound involves a more impactful bass with extended treble while still being fairly balanced overall, the GR07 takes the cake. However if you value a forward and clear midrange while still having solid bass and decent treble, I would go with the EARNiNE EN210.

    Comparison to Campfire Audio ORION

    The Campfire Audio Orion is a single full-range balanced armature IEM. Something that both the EN210 and Orion have in common is that their sound signatures have noticeably variation depending on the output impedance of the source. A higher output impedance will make both IEMs brighter and less laid-back. I find the Orion to vary at more 'extreme' levels than the EN210. The Orion is much more sensitive than the EN210 and requires less ticks on my LG V20 to reach listening volume.

    At low impedance (<1 ohms): The Orion has a very full-bodied and warm signature, significantly more laid back in the treble region. The bass is slightly wooly, though it is ample in quantity. The EN210's bass is a little quicker in comparison. Orion's lower midrange is fuller and thicker than the EN210, and the EN210 presents vocals much cleaner than the Orion. Upper midrange on the Orion is less vibrant than the EN210, vocals sound a bit more veiled and less engaging. The EN210 has greater treble extension and sparkle than the Orion. However, the overall presentation on the Orion has a more diffused, enveloping feel as if the music surrounds you in a circle (whereas the EN210 sounds more left-right stereo presentation).

    At a higher impedance (~4.5ohm): The Orion loses a lot of its bass presence at a higher impedance (nearly nonexistent). It becomes feathery in impact (very quick but light), midbass is much more audible than any subbass. The EN210 retains ample bass impact and extension, though now it sounds somewhat slower than the Orion in speed. Orion's midrange becomes much more engaging and less thick/mushy, as lower mids are decreased in quantity and presence is bumped up a notch. Te same goes for the EN210 -- though the EN210's upper midrange was already competent, lower midrange is slightly decreased with higher impedance, rendering an even cleaner presentation. Orion has a more correct vocal timbre with this output impedance, while the EN210 has a 'plasticky' feel to it. Lower treble is also more sparkly on both IEMs with higher impedance, but both still don't have much air or extension past 10khz.

    In terms of frequency response, both shift similarly with impedance but the EN210 has less drastic variance and is superior from the get-go, with improved extension in both extremes. The Orion takes the lead in more abstract sound properties, such as sound stage and coherence. Soundwise I would place the EN210 above the CA Orion (regardless of price!), but Campfire Audio's package feels more complete overall.


    The EN210 genuinely surprised me -- not many IEMs I've had the opportunity to sample, let alone at this price range (~$100) have had vocals this refined. As a dual balanced-armature IEM with an undoubtedly entry level price, I was expected something a bit more raw and unruly by nature, but EARNiNE was anything but that.

    The EN210 is built fairly well (though with fixed cables), and looks/fits great. Soundwise, it proves itself extremely competent with a professional and mature tuning. A low output impedance renders a warm and slightly laid-back sound signature that can take all genres and tackle them with ease. With a high output impedance, the EN210 is exquisitely balanced and took me by surprise. It easily competes with any of its similarly-priced peers, and even many above. Its ultimate downfall is a weak treble extension, taking away any major sense of air or sparkle.

    On first listen, I knew it sounded pretty good for a warm and laid-back listen. But it didn't truly impress me until I paired it with a higher output impedance, the sound is not as laid-back and vocals/snare drums come to life. If you are finding the EN210 to be too laid-back, try a different (higher OI) source, it may take you by surprise how much it changes.

    At its asking price, I would undoubtedly recommend the EARNiNE EN210 for its sound alone. If you're interested in giving it a go, feel free to email TSST at


    Sources used in this test were LG V20 with/without UE Buffer jack (low/high OI), and OnePlus One (high OI).
  2. Cinder
    Same Company, Different Sound
    Written by Cinder
    Published Dec 27, 2017
    Pros - Excellent detail articulation, solid constriction, great cable, good case, warm sound signature
    Cons - Lacking a bit of upper-treble expression, mildly underwhelming sub-bass
    Earnine EN210 Review: Same Company, Different Sound

    Earnine is a fledgling company with a very complicated company history. Originally they were a brand started by TSST ( Toshiba Samsung Storage Technology). However TSST went bankrupt, and the end seemed nigh for them. Thankfully, some of the employees of Earnine managed to revive the brand and continue developing their fully-original balanced-armature designs. I’ve previously reviewed the EN120 (which I absolutely loved), so I came into the EN210’s review with high expectations. But does it live up to my expectations, and can it prove itself to be a better value than its predecessors?

    The EN210 is currently in production and isn’t for sale yet. But the wait shouldn’t be too long!

    Disclaimer: This unit was provided to me free of charge for review purposes. I am not affiliated with Earnine beyond this review. These words reflect my true, unaltered, opinion about the product.

    Preference and Bias: Before reading a review, it is worth mentioning that there is no way for a reviewer to objectively pass judgment on the enjoy-ability of a product: such a thing is inherently subjective. Therefore, I find it necessary for you to read and understand what I take a natural liking to and how that might affect my rating of a product.

    My ideal sound signature would be an extended sub-bass with a leveled, but textured, mid-bass. The mids should be slightly less pronounced than the treble, but still ahead of the bass. I prefer a more bright upper range.

    Source: The EN210 was powered like so:

    HTC U11 -> USB-C adapter -> earphones


    Hidizs AP100 3.5mm out -> FiiO A5 3.5mm out -> earphones


    HiFiMAN SuperMini -> earphones


    PC optical out -> HiFiMe SPDIF 9018 Sabre DAC 3.5mm out -> earphones

    All music was served as MP3 @320Kbps or as FLAC.

    The EN210 sounded its best on neutral sources, and did not require nor benefit from any kind of amping.

    Sound Signature
    Initial Impressions:

    There are as many similarities between the sound signatures of the EN210 and EN120 as there are differences. Their trebles share the same DNA but have different levels of extension and clarity. And while the EN120 does everything perfectly except the low-end, the EN210 sacrifices some of its potential to bring more weight and warmth to the table. So I can’t really say if one is better. There’s good arguments that go both directions.

    Mid-bass is matched with the upper-mids and treble, and sub-bass is about 3–4dB less emphasized than the mid-bass. All in all it comes out to be a natural sound signature with a warm tilt.

    Treble: Songs used: In One Ear, Midnight City, Outlands, Satisfy

    High-hats and cymbals sound outstanding on the EN210, and for a warmer IEM I’m extremely impressed. While it doesn’t take my breath away like its older brother, the EN120, does, it still provides me with an immersive experience. Over the course of In One Ear I could hear the sound of air flowing into the vocalist’s nose when he inhaled between lines, all while being charmed with the distinct slams of the high-hats and drums in the background.

    String instruments sound wonderful on the EN210, and I wouldn’t be surprised if they were used as the primary benchmark for sonic testing back at Earnine’s facilities. Outlands really exemplifies this. Coherence, spacial placement, and instrumental separation are all top notch for a dual-BA IEM, and I can find no faults.

    Furthermore, the EN210 isn’t sibilant at all. Earnine seems to be very careful about releasing any sharp or harsh products, something I commend them for. Sibilance can be a hearing hazard, and I wish more manufacturers took more seriously.

    Mids: Songs used: Flagpole Sitta, Jacked Up, I Am The Highway, 10,000 Emerald Pools

    Instrumental separation was Earnine’s previous claim to fame, so how well did they preserve that astral quality in the pursuit of a more “mainstream” sound signature? Well, by my marks, remarkably so. While the EN210 simply can’t compete with the EN120 on this, it does routinely outshine other IEMs in its class. Every chord, every string pluck, and every drum hit is preserved throughout the entirety of songs like 10,000 Emerald Pools. Furthermore, the timbre of guitars, electric and acoustic alike, is great. I can strongly recommend that the EN210 to fans of rock and alternative, regardless of it’s deviation from the tried and true V-shaped sound signature.

    The EN210 doesn’t play favorites with male or female vocals either. Both are well-weighted and have an above-average level of intelligibility.

    Bass: Songs used: Moth, Gold Dust, In For The Kill (Skream Remix), War Pigs (Celldweller Remix)

    Ah, now onto bass. This was previously my biggest nit to pick with Earnine and they have definitely solved the majority of my concerns. I felt the EN120 to be a bit too clinical, even when compared to other popular single-BA IEMs. Frankly, it was boring for most electronic genres. The EN210 doesn’t go full bass cannon, but it does take very good steps to becoming palatable in every genre I threw at it. The EN210 still isn’t a basshead’s dream, but it can definitely perform well enough to be satisfying for anyone not looking to vibrate their eardrums out of their heads.

    My favorite performance of the EN210’s bass was definitely Moth. It felt like the EN210 was most at home there and had great attack and decay speeds. Timbre and emphasis were on point and never became messy or loose.

    Gold Dust and War Pigs definitely did suffer a bit though. While bass was punchy, relatively firm, and quick, it lacked rumble — a common pitfall of BA IEMs. After all, balanced armature drivers are at a fundamental disadvantage when it comes to creating sub-bass.

    Packaging / Unboxing


    Earnine really improved on the EN210’s packaging. The outer-cover’s coating no longer has that cheap feeling to it, and the IEMs are more appropriately housed in a cushy foam.

    Construction Quality

    The EN210 feels sturdy and well built. The driver housings are made out of a transparent plastic that feels solid. There are soft rubber color markers on both housings to allow you to easily identify right from left.

    The nozzle is made from metal and features a very good mesh that should be able to keep out most kinds of debris.

    Unfortunately, the E210 doesn’t feature removable cables. Thankfully though, I don’t feel the need to replace the stock one at all. The cable is pliable and almost completely free from microphonics. It has no body, is visually attractive, braided, and is quite durable.

    The cable is terminated with a 3.5mm jack, housed in metal. It doesn’t look predisposed to wear and tear and should hold up quite well over time should it not be seriously abused.


    Due to the EN210’s tiny driver housing and minuscule weight I found the it to be extremely comfortable and instantly fit in my ear; I didn’t even change the default ear-tip size!




    The EN210 comes with a satisfactory set of accessories, though a wider variety of ear-tips couldn’t have hurt. Inside the box you’ll find:

    • 1x pair of foam eartips
    • 2x pairs of extra silicone eartips
    • 1x Semi-hard carrying case
    I like the EN210’s case. It has more than enough space to fit the IEM and its ear-tips and it isn’t too bulky. The eartips are good too, no complains there. Genuine Comply foams would have made my day though, since no knockoff really comes close in my opinion.

    The EN210 improves many of the aspects I took issue with on the EN120. It’s nice to see that Earnine is actively working to improve their products. It does appear that the EN210 is, however, a symptom of the curious minds and hands at their R&D labs. I admire their handiwork, as the EN210 is a great IEM, but I can’t help but feel it needs more to fine-tuning to become the giant killer I know it can. That being said, I can definitely see the EN210 in its current form being a worthy addition to many collections, especially if you enjoy warm sound signatures and are looking for something with a little bit of character.

    Keep up the good work Earnine. At this rate, you’ll hit TOTL status in no time!
  3. HiFiChris
    EARNiNE EN210: full, warm, cosy, dark & mellow
    Written by HiFiChris
    Published Dec 2, 2017
    Pros - •surprisingly impactful bass for a lower-price multi-BA in-ear
    •warm and harmonious sound with good texture
    •good resolution and separation
    •quite circular sounstage
    •great cable
    •beautiful visual appearance and design
    •great build quality
    Cons - •not for those who aren't looking for a thick, warm sound
    •extension past 10 kHz quite limited

    Originally posted on my German audio review site, the "Kopfhörer-Lounge", here comes my review of the latest in-ear creation from EARNiNE, the EN210.


    While there are probably a few dozen, if not even hundred companies that make dynamic drivers for in-ears, earbuds and full-sized headphones, there are only a handful of manufacturers of Balanced Armatures. The two best known BA makers are Sonion and Knowles, but there are also other brands such as the TSST that develop and manufacture those micro drivers that were originally first used in hearing aids in-house.

    TSST, which stands for “Toshiba Samsung Storage Technology”, is a joint venture between the two eponymous companies. “EARNiNE”, which went bankrupt but was revived thanks to caring employees, is their brand of in-ears that feature their in-house designed and manufactured Balanced Armature drivers.


    I already reviewed their EN120, a single-BA model with a remarkably neutral, flat tuning and great technical performance that definitely exceeds the surprisingly low price, and its only real flaw was a sharp resonance buildup in the highs as well as slightly sub-par sub-bass definition.

    Now a new in-ear was added to EARNiNE’s portfolio, the EN210, a dual-BA in-ear that is priced very competitively as well.

    Currently there aren’t really any overseas distributors of EARNiNE’s products, but I was told that the company is planning on selling their in-ears directly on ebay in the not too distant future. //edit: I was just informed that the EN210 is now already available and selling on ebay in EARNiNE's own store: https://www.ebay.com/itm/142606965479

    What tuning philosophy does the new dual-BA in-ear EN210 follow and how does it perform? Well, that’s what I answer in this very review.

    Full disclosure: After having been in contact with them a few months ago when the revived company wasn’t fully up and running yet and after having reviewed their EN120 that I was offered by the Tony Song Corporation, I was contacted by EARNiNE who told me that they were going to send the EN210 to me once it is ready. I was then sent the sample at no cost, for the purpose of an, as always, honest, unpaid and unbiased review whose content and outcome is not influenced or restricted by the manufacturer or any third person, no matter how it would turn out.

    Technical Specifications:

    Price: ~ $90 in Korea
    Driver Type: Balanced Armature
    Drivers per Side: 2
    Acoustic ways: 2 (full-range, woofer)
    Sensitivity: 100 dB +/- 3 dB at 1 kHz
    Frequency Range: 20 Hz ~ 20 kHz
    Impedance: 21 Ohms +/- 20% at 1 kHz
    Cable: 1.2 m, twisted, permanently attached

    Delivery Content:

    The cardboard box and printed slipcase are nothing that truly stand out or is special, but that’s also not what you would usually expect to get at this price point. You also don’t expect to get a genuine van Gogh when you go Ikea-shopping for a painting, do you?


    Anyway, included in the box, apart from the in-ears, are one pair of foam ear tips, three pairs of silicone tips, a manual and last but not least a protective, zippered storage/transport case.

    Looks, Feels, Build Quality:

    It doesn’t happen too often that budget-priced in-ears leave me excited when it comes to design and build, but in case of the EN210, this definitely was the case when I first opened the cardboard box.


    Not only has the EN210 got a unique styling despite featuring rather compact universal fit shells, but its brown-ish grey, transparent colour along with the golden EARNiNE logos looks quite nice and classy as well and weirdly attracts me. And what really makes me personally love the EN210’s design are its rubberised side-marker dots on the inner side of each shell, with a green dot on the left and a red one on the right shell. I don’t know why, but there is just something about this design and the side-markers (that are actually cover plugs for the screws that hold the shell together) that really makes me love it – maybe it’s just the harmonious, earthy colour and interaction of the different colour nuances that you don’t see every day.

    Build quality in general is really good, with proper strain relief on the very nice (but non-detachable) cable with three twisted conductors below the y-splitter. That cable is rather similar to Westone’s cables as well as the Plastics One and therefore very flexible, and the in-ear’s nozzles are made of silver metal. A chin-slider is also implemented to the cable.


    The compact, squared, zippered carrying case with the EARNiNE logo on top of its lid is nice as well and not only protective but also soft on the outside and inside, and features a little storage pocket inside, too.

    Comfort, Isolation:

    The EN210 has got shells that are rather small and have got nozzles that are ergonomically angled wherefore chances are little that the ear pieces won’t fit and seal well in your ears. EARNiNE’s in-ear certainly fits and seals extremely well in my large ears and ear canals, that’s for sure.

    The EN210 has to be worn with the cable guided around the ears, which is the common standard for most higher-priced and professional in-ears as it improves the fit and drastically reduces microphonics (cable noise) that are not present at all thanks to the light, flexible cable.

    Noise isolation, as expected due to the closed shells, is really good.


    My main source for listening was the iBasso DX200 (AMP1 module).

    I only used the largest included silicone tips.

    Frequency response measurements can be found here: frequency-response.blogspot.com


    Okay, the EN210 is tuned quite differently from the EN120 that took on a remarkably neutral approach with one resonance in the highs. Indeed, the EN210 is tuned quite a bit differently, featuring a rich, full, warm, dark and relaxed sound signature that avoids any harshness but might also be perceived as a bit veiled and lacking some sparkle if you are generally not really interested in dark, warm, full and cosy sounding in-ears.

    At first listen, the EN210 showcases a surprisingly full and thick bass for Balanced Armature standards – it clearly doesn’t reach basshead dynamic driver levels in terms of elevation, but is still meatier than many other in-ears with Balanced Armature woofers on the market, especially at this price.

    The mids, especially lower midrange, are on the full-bodied, warm and dark side. They are not neutral or flat. They are not recessed. They are close in the mix and rather intimate. Voices are definitely on the warmer side, both male and female. If you are not into full-bodied, warm and cosy lower mids, look away. If you want a sparkling, airy upper midrange, look away, too. But if you like warm, full, cosy and dark sounding mids, the EN210 is right for you.

    The EARNiNE’s highs are generally on the darker side, too. They take a step back for a more de-fused, inoffensive, mostly edge-free presentation.

    Tonally, the EN210 therefore reminds me of a much better-made version of the Brainwavz M100, an in-ear that just went a bit too far when it comes to darkness, to the degree that it became (very) muffled sounding. Not so the EARNiNE – both in-ears share tuning similarities in the bass and lower midrange, but differ in the highs. While the M100 is just too dark and muffled up top, the EN210 is just dark and inoffensive but not really muffled sounding. Higher notes are still present but in the background. Therefore I think that the EN210 achieved just that what the M100 failed to do.

    Around 700 Hz, the lows’ emphasis starts to climb, with an already full and warm lower midrange as well as lower root, with the highest point being reached at around 90 Hz with an elevation that is about 10 dB compared to an in-ear that is diffuse-field neutral in the lows, such as the Etymotic ER-4S/SR, and about 7 dB more than still very neutral in-ears like the Ultimate Ears Reference Remastered or EARNiNE’s own EN120. This elevation is kept upright down into the sub-bass without really rolling off.

    Lower mids are warm and full, like a soft, cosy blanket in front of an inviting fireplace in a wooden cottage up in the hills on a snowy winter night. Sure, vocals are generally and undeniably on the warm side. Acoustic instruments sound full and warm as well, but not to the extent of showcasing too much unrealism or unpleasantness (unless you generally don’t like (very) warm and full sounding in-ears and headphones). Female vocals might be perceived as lacking a bit of air though, which is due to a slight notch around 2 kHz – but then again it is nice to see an opposite pole to the many (mainly) Asian in-ears with a bright, elevated upper midrange.

    The highs are generally in the background and laid-back, creating a somewhat dark general presentation and sensation. There is a bit of unevenness around 3 (here’s a slight bump that brings voices more forward in the mix but definitely doesn’t brighten them since female vocals are on the warm and dark side, too), 6 and 9 kHz when listening to sine sweeps, with an even roll-off in the super treble above 10 kHz (wherefore you don’t really get any subtle sparkle and air). The treble is therefore not as even and realistic as the much more expensive UERRs’ or more comparably priced Brainwavz B200’s or Rose Mini2’s, but that’s what one doesn’t really expect for the price anyway. Since it’s mostly in the background and on the darker side though, the bit of unevenness the EN210 carries in the highs when listening to sine sweeps doesn’t come across as unnatural, sharp or edgy at all anyway. Quite the opposite is actually the case and the treble is de-fused and well-tamed (definitely don’t expect a sparkling, bright and airy presentation here – cymbals and violins are inoffensive, smooth and laid-back).


    So who is the EN210 for?

    It was not made for bassheads – while the lows are definitely strong and impactful, they might still lack two or three notches for that.

    It was definitely also not made for those looking for a neutral or bright tonality, since the EN210 is anything but that.

    It wasn’t made for those looking for a v-shaped sound signature either.

    Nope, the EARNiNE EN210 is an in-ear that was made for those who want a thick, warm, cosy, mellow, bold and dark sounding in-ear with a treble that is de-fused and never bothering.


    The EN210 is not on the same performance level as some of the higher-end dual-BA in-ears such as the InEar StageDiver SD-2 or Eternal Melody EM-2, but that was rather foreseeable anyway. What it does though is outperforming some of the better single-BA in-ears below $100, with slightly cleaner separation and more headroom. Yeah, in the more entry-level focussed price range, the EN210 is a really strong contender.

    What you definitely get with it are the clean, tight and fast transients that you would expect from a better Balanced Armature in-ear. It is thick, it is warm and it is dark, however it never loses focus and doesn’t become wobbly, woolly or undefined sounding.

    Starting with the bass, it is definitely a bit more on the softer, slower, body-focused side for Balanced Armature standards, having more of a dynamic nature and texture. Transients and control still make somewhat clear that the used woofer is a BA driver though, and it outperforms some similarly bassy single dynamic driver in-ears at the same price point when it comes to bass details and control with quick and complex passages and tracks.
    Sub-bass definition, unlike the EN120 whose sub-bass sounded somewhat undefined, is by the way good.

    Midrange and treble details are certainly there – don’t be fooled by the tuning. They are just not in the foreground but instead pushed more into the background due to the choice of a dark tonality. The EARNiNE EN210 is no aggressively or analytically detailed in-ear. It doesn’t even want to be that. Instead, it is forgiving and cosy.

    Note separation is good, too – definitely not the sharpest and ultra-cleanest sensation, but not a weakness or imprecision either.


    The EN210 has got a rather circular soundstage with just a slight tendency to being oval, with good overall height.

    In absolute terms, it has got about average expansion, but for the price of this dual-BA in-ear, the size is more than just average with an expansion to the sides of about one finger’s thickness more than the base between my ears.

    Separation, layering and placement are adequately precise and better than one would probably expect them to be for the price, although in ultimate terms the EN210 is rather on the lower middle side of the scale for multi-BA in-ears in this regard. It doesn’t sound muddy or foggy, however it lacks the ultimate sharpness that some of the higher-priced multi-driver in-ear offerings have.


    In Comparison with other Dual-BA In-Ears:

    Brainwavz B200:

    Now with the reduced MSRP and removable cables, the B200 has become even more of a great deal than it already was with its original MSRP and permanently attached cables. It heads into a smooth, somewhat warm tonal direction with good tonal balance and performs really well on the technical level.

    The EN210 carries slightly more bass slam than the B200. Its lower mids are also warmer and its upper mids a bit darker than the Brainwavz’; generally the EARNiNE’s midrange appears a little closer, more intimate. In the highs, it is the EN210 that is tuned darker than the B200, especially in the upper highs that sound more subdued in comparison (especially noticeable with cymbals that are audibly “splashier” on the B200 compared to the EARNiNE’s presentation).

    Both in-ears are rather close when it comes to detail retrieval, which means that both are really good technical performers for the reasonable price they are sold for.

    The B200 has got the slightly tighter bass while control is similar, along with note separation that is a bit cleaner as well, while the EN210 has got the slightly higher midrange resolution.

    The B200 has got the slightly cleaner soundstage and separation while dimensions are about similar (the Brainwavz’ is only slightly wider and higher).

    Apple Dual-BA In-Ears:

    Often overlooked, the Apple in-ears are actually nice and competitively priced in-ears that, while ultimately lacking the coherency and bass quality of a good single-BA in-ear, resolve well for the price, especially in the higher frequency range where they don’t really lack behind higher-priced multi-BA in-ears at all. If a good fit and seal can be obtained, their sound signature heads into the slightly warm-ish side of balanced in the lows, and they would get a score of 4 out of 5 stars if I were to review them now (things where they are slightly lacking behind good single-BA models are their lows’ resolution compared to the highs’, and to a smaller degree coherency compared to a good single-BA model even though their treble resolution and averaged general detail retrieval somewhat outperforms many single-BA in-ears in the same price range of up to $100).

    I bought my Apple in-ears for €72.99 on Amazon (sold and fulfilled by Amazon), and I clearly advise potential buyers to also get them from a trusted reseller such as Amazon (sold and fulfilled by Amazon), the Apple Store or any physical outlet that is an Apple reseller.

    Quite obviously, the EARNiNE has got the superior cable with higher flexibility.

    While the Apple in-ears have got a rather subtly implemented warmth and bass lift that’s more on the balanced to neutral side, the EN210 has got the bigger, bolder bottom-end tuning with a good bit of more warmth and fullness.

    The Apple IEMs have got the more neutral, flat midrange tuning while the EARNiNE’s is definitely on the warm, dark and cosy coloured side.

    In the highs, the Apple in-ears are rather neutral with a bit of a relaxation dip in the middle treble, which is something that is what you commonly find in most in-ears. The EN210 is darker and more laid-back in the highs than the Apple IEMs that appear noticeably brighter and splashier in the upper highs, even to the extent of becoming a little metallic and sometimes slightly sharp in comparison.

    The EARNiNE has got the somewhat superior bass texture and details, which is also true for the lower midrange where the Apple in-ears always lacked a bit behind their highs when it came to detail retrieval. The EN210 also sounds more coherent with the more even distribution of its resolution – with the Apple dual-BA in-ears, it’s a little like if you can hear where one driver stops and where the other starts when it comes to detail retrieval.

    Simply put, from the sub-bass to lower mids, it’s the EN210 that wins when it comes to resolution, whereas the Apple in-ears feature the higher minute detail retrieval and cleaner note separation from the central mids up into the super treble.

    The Apple in-ears have got a bit more spatial width whereas the EN210 features the cleaner separation and somewhat more precise placement of instruments.


    The EARNiNE EN210 is a beautiful, well-built, rather wallet-friendly dual-BA in-ear with a great cable and was tuned for those who are looking for a full, warm and dark sound signature without any bothering treble brightness. It also performs well on the technical level wherefore it is a good in-ear and a rather easy recommendation for the price, but definitely not a model for those who fear fullness, warmth and darkness when it comes to tonality or those who want a flatter, more neutral midrange reproduction.


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    On a related, subjective note, I personally really like (dare I say “love”?) the EN210’s sound signature and quality for the price enough wherefore it goes on my list of products that I subjectively love and hate (definitely not as one of my main IEMs, but more as a “sidechick”). Yep, there are also some dark, warm and full sounding in-ears and headphones that I personally really appreciate from time to time. Definitely an enjoyable and smooth presentation overall.


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