The Reference Takes a Daybreak!

PROS: Excellent overall tonal balance | Deep, well-controlled and physical bass | Natural, coherent and lifelike midrange | Smooth and engaging treble | Very good imaging and separation for thee price | Excellent driver integration | Comfortable, secure fit | Interchangeable 3.5mm/4.4mm terminations | Outstanding value at $170.

CONS: Upper-treble refinement and air could be better | L/R channel matching on my unit isn’t perfect | Technical performance could be pushed further in a future iteration.

Thanks to CrinEar for sending the products and making this review possible.

Introduction.

CrinEar needs very little introduction at this point. After years of reviewing, measuring and collaborating on IEMs, Crinacle eventually took the obvious next step and launched his own brand, with the Daybreak becoming the first full-production IEM under the CrinEar name. I actually reviewed the CrinEar Reference just a few days ago, so this is my second visit to CrinEar territory in a very short span. The Reference turned out to be a rabbit hole of an article for me, an audio engineer.  I went into it expecting to review an IEM and ended up writing a rather lengthy piece about what reference is about, JM-1, neutrality, studio monitoring and what I personally consider Reference. Needless to say, it left quite an impression and invited a ton of PMs from people asking me all sorts of questions after.

The Daybreak, however, is a different proposition. Unlike the considerably more serious Reference, it isn’t positioned as an uncompromising reference monitor. It is built around the IEF Preference 2025 target, an evolution of the population-averaged Diffuse Field approach that aims to combine natural tonality with a more engaging low-end balance. The hardware is equally ambitious for its price, combining a 1DD + 2BA + 2 micro-planar tweeter configuration inside a compact resin shell. That immediately makes the Daybreak an interesting IEM to evaluate. While the Reference is fundamentally about answering the question of how neutral can an IEM be?, the Daybreak is asking something slightly different: how close can you get to a natural, research-informed tonal foundation while still making the result genuinely enjoyable?

Build Quality, Fit & Comfort.

The Daybreak uses a fully filled resin shell with a compact pseudo-custom shape. The construction is clean and precise, and the translucent shells give you a glimpse of the rather elaborate internal driver arrangement without making the IEM look unnecessarily busy. The fully filled construction also gives the shells a reassuringly solid feel. CrinEar uses advanced 3D printing to accommodate the internal acoustic pathways, while the aluminium nozzle measures 6 mm at the lip.

The fit is secure and, for my ears, comfortable over extended listening sessions. The pseudo-custom contours do a good job of keeping the IEM firmly seated without requiring particularly deep insertion. As always, ear anatomy and eartip selection will play a significant role here, but I had no problems wearing the Daybreak for several hours at a time.

The supplied cable is silver-plated copper and comes with interchangeable 3.5 mm and 4.4 mm terminations, which is a useful inclusion at this price. The package also includes silicone and foam eartips along with a leatherette carrying case.

Overall, though, the Daybreak feels like a well-made IEM rather than something built down to a price.

Sound Analysis.

Graphs are measured using an IEC60318-4 (IEC711) setup. You can compare all the graphs on my IEM Graph Database here – Animagus Squiglink.

Note – Before getting into the sound itself, one small note about my measurements. My particular Daybreak unit isn’t as tightly channel-matched as some of the other units I’ve seen measured on Squiglink. The differences are still relatively small and don’t affect my listening experience too much, but they’re worth mentioning as channel matching can influence things here and there. This may simply be a one-off variation with my sample rather than something representative of the Daybreak as a whole, so I’d treat my L/R measurement with that caveat.

Sound Overview – The CrinEar Daybreak is tuned to Crinacle’s IEF 2025 Preference Target, and the first thing that struck me was how natural, balanced and yet lively it sounds. There is a tasteful amount of low-end weight that gives the presentation genuine physicality, while the midrange carries excellent vocal body and timbral realism. Meanwhile, the treble adds just enough energy and sparkle to keep the sound open and articulate without turning the Daybreak into a relentlessly bright, detail-chasing set. Nothing feels excessively boosted or recessed. What I particularly appreciate is this sense of tonal cohesion. The Daybreak doesn’t sound like a bass-heavy IEM with the upper end trying to compensate, nor a bright monitor using bass to soften its presentation. It feels deliberately balanced from top to bottom, with just enough colour to keep things engaging.

Compared with the CrinEar Reference, the Daybreak is clearly the more coloured and immediately exciting listen. It offers greater bass impact, a more open top end and stronger perceived detail, whereas the Reference remains more restrained, intimate and monitor-oriented. The Daybreak feels less like a tool designed to disappear and more like an IEM that wants you to enjoy what you’re listening to—without losing the tonal discipline that makes it believable.

Overall, I’d describe it as “reference-y with personality.” Interestingly, this balance also lines up closely with my Animagus IEM Preference Target. The relationship through the bass, lower midrange and vocal region tracks surprisingly well, though the Daybreak carries a touch more energy in the sub-bass, while my target maintains slightly more sustained energy into the upper treble.

Let’s dig in deeper…

Bass – The bass is one of the Daybreak’s strongest qualities. It has excellent extension into the sub-bass, with enough physical weight to give kick drums, bass guitars and electronic low-end convincing presence without turning the entire presentation into a bass showcase. What I particularly like is the balance between sub-bass and mid-bass. The additional low-end energy is weighted more towards the bottom octaves, so the Daybreak gets the physicality and rumble without adding excessive warmth to the lower midrange. Kick drums have good impact, bass guitars retain pitch definition and synthesised sub-bass has the depth it needs without simply becoming a wall of low-frequency energy. There is also a very natural transition into the midrange. Nothing suddenly sounds like the bass has been switched off and the mids have taken over. That continuity helps dense arrangements remain clean and makes it surprisingly easy to follow individual bass instruments. Compared with my Animagus IEM Preference Target, the Daybreak carries a little more energy through the lowest frequencies. I don’t consider that a problem; if anything, it gives the Daybreak a little more physicality than my own target. And for general listening, I rather enjoy it.

One small caveat with my particular sample is channel matching through the bass. I’m measuring roughly a 1.2 dB difference between channels in parts of the low end, which is a little beyond the roughly 1 dB tolerance commonly used as a reference for close channel matching. In practice, however, I don’t find it particularly obvious with most music. It becomes noticeable mainly on recordings with a lot of sustained sub-bass information, where I can occasionally perceive the low end pulling slightly more towards one side.

Midrange – The midrange is where the Daybreak earns most of its credibility. Vocals have good body without sounding thick, while the upper-midrange provides enough articulation to keep singers and instruments clear without pushing them unnaturally towards the listener. Male vocals sound convincing and grounded, while female vocals retain presence without becoming shouty. Acoustic instruments benefit from the same balance. Guitars have enough body around the fundamentals while retaining string texture, piano has convincing weight without becoming overly thick, and percussion has enough attack to remain articulate without becoming excessively sharp. What I particularly appreciate is that the Daybreak doesn’t rely on an exaggerated presence region to create its sense of clarity. It allows the recording to establish its own hierarchy. A lead vocal can sit forward when the mix places it there, while backing vocals and supporting instruments remain appropriately behind it. There is a slightly more musical flavour here than with the Reference, but the underlying tonal discipline remains intact. For me, this is one of the Daybreak’s biggest strengths: it manages to sound highly musical without sacrificing naturalness.

Treble – The treble follows a similar philosophy. There is enough energy to keep the Daybreak open, articulate, and reasonably detailed, but it isn’t trying to turn itself into a detail monster. There is no sibilance, cymbals retain good texture, guitar harmonics remain easy to follow, and the overall presentation never feels closed-in. Compared with the CrinEar Reference, the Daybreak is noticeably more open, energetic and exciting through the upper frequencies, contributing to its larger perceived stage and stronger sense of detail.

Where I would have liked more refinement is in the mid and upper-treble frequencies. The Daybreak has good upper-treble extension, but with the stock Standard Bore tips – which I prefer for fit – there is a slight roughness around the edges along with a hint of thinness and sizzle on certain recordings, taking some polish away from the upper registers. Eartip choice makes a meaningful difference here. Switching to my preferred Azla SednaEarfit Standard tips noticeably smooths and evens out the response, reducing that roughness and giving the upper frequencies a cleaner, more coherent presentation. While the underlying tuning remains recognisably the same, the Daybreak clearly benefits from thoughtful tip selection and insertion depth.

Even with these optimised tips, I still feel the treble could delineate fine information a little better. On denser recordings, high-frequency elements don’t separate with quite the same ease, and treble transients aren’t as crisp or cleanly etched as I’d ideally like. My particular unit also has a small amount of L/R channel imbalance, which may be contributing to this perception in the upper registers, so I wouldn’t attribute it entirely to the tuning itself.

Ultimately, the Daybreak gets the core tuning right: it is open, exciting, non-sibilant and easy to listen to. What it lacks is that final stratum of treble refinement – the effortless separation, definition, and imaging precision that distinguish more technical, flagship-tier IEMs. With the Azla tips, however, it gets noticeably closer, and for a $170 IEM, it remains a thoroughly respectable performance.

The Daybreak is technically quite good for its price, and its strongest technical quality is probably tri-brid coherence. The integration between the dynamic driver, balanced armatures and micro-planar tweeters is handled very well, with no obvious sensation of separate drivers operating independently. Bass transitions naturally into the midrange, the treble remains well integrated, and the Daybreak consistently presents itself as one coherent system.

Imaging is precise overall and separation is strong, although this is where I start nitpicking to the core. The Daybreak resolves a good amount of low-level information and handles complex arrangements competently, but compared with some more technically accomplished IEMs I’ve heard, I perceive slightly less definition in very fine spatial cues and individual layers. The effect is subtle rather than dramatic, and is most apparent when directly A/B testing recordings with dense layering or very finely placed high-frequency information.

The soundstage is very good, just don’t expect flagship level exceptional. There is convincing wide width and very deep depth for the price, stable centre imaging and accurate positional placement. It doesn’t create the same degree of scale or front-to-back separation as some stronger sub-$1000 competitors. Interestingly, the Daybreak sounds more open and spacious than the CrinEar Reference, which contributes to its more engaging presentation.

Resolution is similarly very good for the price—arguably close to class-leading among sub-$200 IEMs. Where I start nitpicking is not the amount of information it retrieves, but the finesse with which that information is presented. Compared with some of the more technically accomplished IEMs I’ve used, particularly higher up the price ladder, the finest spatial cues and individual elements don’t always have quite the same level of definition and immediacy. My particular sample also has a small amount of L/R channel imbalance, which can affect perceived image localisation and symmetry and may contribute to some of what I hear in terms of image precision. I therefore wouldn’t generalise the exact degree of that spatial effect to every Daybreak without hearing a more tightly matched sample.

And this is where I have to remind myself that we’re talking about a $170 IEM. I’m being exceptionally demanding because that’s simply how I listen – and because once the fundamentals are this well executed, it’s the last few percentage points that become interesting. At its price, the Daybreak’s combination of coherence, imaging, separation and resolution is genuinely impressive.

CrinEar Daybreak vs CrinEar Reference.

Having reviewed both CrinEar IEMs within a few days of each other, this is probably the most revealing comparison because they demonstrate just how differently CrinEar can approach two products from the same brand. They share a broadly natural and balanced foundation, but the moment you switch between them, their priorities become quite clear. The Reference is the more disciplined of the two. Its bass is tighter and more linear, the midrange is more explicitly neutral, and its upper treble is more restrained. The Daybreak, by comparison, has a little more warmth and low-end physicality, along with more energy through the upper frequencies. It sounds more lively and immediately engaging, whereas the Reference feels calmer and more deliberate.

The difference is particularly obvious with bass. The Daybreak gives kick drums and synthesised low-end greater physical weight, while the Reference keeps things tighter and more controlled. Neither sounds bass-light, but the Reference is much easier for me to use when I’m judging the actual balance of a mix because it doesn’t draw quite as much attention to the low end. Through the midrange, however, the gap becomes much smaller. Both have remarkably natural vocals and excellent timbral coherence. The Reference is slightly more restrained and neutral, while the Daybreak adds just enough body and colour to make the presentation more immediately musical. Switching between them doesn’t feel like going from “good mids” to “bad mids”; it feels more like moving between two different interpretations of what natural should sound like. Treble is where their personalities separate again – the Daybreak has more upper-frequency energy and therefore sounds more open, airy and detailed at first listen. The Reference is smoother and more restrained, which contributes to its more intimate presentation and lower perceived micro-detail. Personally, I would like a little more upper-air from the Reference, but I also appreciate why it works so well as a long-session reference. The Daybreak gives me more excitement; the Reference gives me more tonal composure.

The technical presentation follows much the same pattern. Daybreak has the more open and energetic stage, while the Reference presents things more directly and intimately. Imaging is excellent on both, but the Reference feels more focused and predictable when I’m concentrating on individual tonal relationships. Daybreak, meanwhile, gives a little more of the “wow” factor through its greater sense of space and perceived detail.

That difference ultimately comes down to what I’m listening for. With the Reference, I find myself listening to the recording. With the Daybreak, I find myself enjoying the recording. For critical monitoring, I’d choose the Reference without hesitation. Its tonal discipline and restrained presentation make it the one I’d trust more when evaluating a mix or checking whether something is genuinely out of balance. For general listening, however, I actually find myself reaching for the Daybreak more often. The additional bass physicality and upper-frequency openness make it more immediately enjoyable without taking it into obviously coloured territory. And I think that’s exactly how these two CrinEar IEMs should coexist. Reference is the purist. Daybreak is the pragmatist.

One is trying to answer, “How accurately can I reproduce the tonal balance?” The other asks, “How do I preserve that natural foundation while making the music a little more enjoyable?”

No reasonable person would want CrinEar to make them sound more alike. In fact it’s the variety and technical prowess that makes a brand very interesting. The fact that these two don’t is precisely what makes the pair and the brand CrinEar interesting.

Comparisons with Other IEMs.

CrinEar Daybreak vs HiSenior Mega5 EST.

The HiSenior Mega5 EST is probably the closest overall competitor to the Daybreak in terms of tuning philosophy. Both aim for a broadly natural and balanced presentation, with enough bass engagement and treble energy to keep the music enjoyable rather than clinical. The difference becomes obvious in the way they present that balance. The Mega5 EST sounds more refined and effortless, with a cleaner bass texture, more nuanced layering and a greater sense of spatial openness. The Daybreak, by comparison, feels a little more immediate and energetic, with slightly stronger low-end impact and a more forward sense of engagement.

The Mega5 EST also has the more spacious presentation. Instruments seem to occupy a larger acoustic space, with more room between individual elements and better front-to-back layering. The Daybreak has good separation and imaging, but its presentation is somewhat more compact. On densely produced music, the Mega5 EST gives me a better sense of individual layers and ambience, whereas the Daybreak keeps the presentation a little more direct and focused.

Bass is another interesting difference. The Daybreak has excellent low-end authority for its price and can sound slightly more punchy and physical, while the Mega5 EST is more nuanced and textured. Bass guitars on the Mega5 EST have a little more articulation around the notes, while the Daybreak prioritises a slightly stronger sense of impact. Neither has excessive bass, but the Mega5 EST feels more polished in how it handles the low end. Through the midrange, both are very good. The Daybreak has a touch more immediacy, while the Mega5 EST feels slightly smoother and more effortless. Vocals are natural on both, although I find the Mega5 EST particularly convincing with dense mixes because it keeps individual vocal and instrumental layers better separated. Treble is where the technical refinement of the Mega5 EST becomes more apparent. It has a greater sense of air and refinement, and fine details emerge with less effort. The Daybreak has plenty of energy and perceived detail, but the Mega5 EST gives those details a little more definition without making the presentation sound brighter simply for the sake of it.

Considering the price difference, the Mega5 EST’s technical advantage isn’t particularly surprising. What is impressive is how close the Daybreak gets in terms of overall tonal balance and musicality for considerably less money. If I wanted greater refinement, spatial scale and technical sophistication, I’d take the Mega5 EST. If I wanted a slightly livelier presentation with excellent tonal balance at a much lower price, the Daybreak would be my choice.

CrinEar Daybreak vs Binary Acoustics 1900.

The Daybreak takes a more restrained approach, particularly through the upper treble, while the 1900 adds considerably more energy and sparkle up top. Interestingly, the two are actually quite close through much of the core midrange, so this isn’t a case of two IEMs taking radically different approaches to vocals. Both give vocals good presence and intelligibility, but the 1900 adds more colour around that presentation through its deeper bass and more energetic upper registers.

The bass difference is also more nuanced than simply saying one has more and the other has less. The 1900 puts a little more emphasis into the deeper sub-bass, while the Daybreak carries a little more energy through parts of the upper-bass/lower-mid region. In practice, the 1900 therefore has a slightly warmer and more physical low-end impression, whereas the Daybreak sounds a little cleaner and more evenly integrated through the lower half of the spectrum. The bigger difference is up top. The Daybreak is considerably smoother and more restrained through the upper treble, while the 1900 has a pronounced rise through the 8kHz region and considerably more energy further up. That gives the Binary more sparkle, edge and apparent detail, but also makes its treble character more noticeable from recording to recording. The Daybreak, by comparison, is easier to forget about and simply listen through. This also extends to their overall technical presentation. The 1900 can sound more immediately detailed and lively because of that additional upper-frequency energy, while the Daybreak comes across as cleaner and more even-handed. I wouldn’t say the Daybreak is dramatically more technically capable across the board, but it has fewer tonal distractions from the underlying recording.

For my preferences, the Daybreak is the safer choice when I want a more neutral, controlled and consistent presentation. The 1900 has more personality and can be more immediately engaging, particularly with rock, pop and electronic music where that added bass weight and treble sparkle work rather well. The Daybreak is the tidier presentation; the 1900 is the one with a little more tasteful seasoning. And sometimes, that extra seasoning is exactly what makes the dish more interesting.

CrinEar Daybreak vs Softears Volume S.

The Softears Volume S takes a warmer, richer and more overtly euphonic approach, while the Daybreak stays cleaner and more balanced. The difference isn’t subtle once you switch between them. The Volume S has greater warmth and density through the lower frequencies, giving male vocals, guitars and other lower-midrange instruments a richer and more organic character. The Daybreak sounds leaner and more open by comparison, with cleaner separation between instruments.

Vocals are one of the Volume S’s strongest areas. There is a particularly pleasing sense of body and smoothness to voices, and the overall presentation has an easy, relaxed quality that works beautifully with vocal-heavy and acoustic recordings. The Daybreak is a little more explicit and neutral, giving me greater clarity around individual instruments and a cleaner view of complex arrangements. Bass follows the same philosophy. The Volume S has a more generous sense of low-end weight and warmth, while the Daybreak is more controlled and somewhat tighter through the transition into the lower midrange. I find the Daybreak easier to use for judging bass balance because it adds less tonal colour, while the Volume S makes bass-heavy and vocal-centric music more immediately satisfying. The upper frequencies further separate the two. The Daybreak has a more open and energetic presentation, which gives it stronger perceived detail and a larger sense of space. The Volume S is smoother and more relaxed, making it particularly forgiving with bright or aggressively mastered recordings. Neither approach is inherently better; they’re simply optimising for different things. Technically, the Daybreak has the edge for me in separation and perceived openness, while the Volume S leans more heavily into coherence and musicality. The Volume S can be wonderfully immersive precisely because it isn’t constantly asking you to listen to the technical details. The Daybreak gives me a little more information and positional clarity when I want to examine the recording.

For vocals, acoustic music and a warmer, more emotionally flattering presentation, I can absolutely understand preferring the Volume S. For a broader library, greater tonal neutrality and a more useful balance between critical listening and enjoyment, I’d take the Daybreak.

CrinEar Daybreak vs Tansio Mirai X.

CrinEar Daybreak vs BGVP DMA.

The BGVP DMA takes a much more spectacular approach than the Daybreak. Its 1DD + 2BA + 2 bone-conduction-driver configuration produces considerably more bass quantity and physicality, along with a larger and more atmospheric presentation. The DMA’s low end is more visceral and has a stronger sense of impact, while the Daybreak is cleaner and more disciplined, keeping the bass better integrated with the rest of the spectrum.

That difference becomes particularly obvious with complex music. The DMA’s stronger low-end presence gives electronic music and cinematic material an impressive sense of scale, but it also adds more tonal colour to the presentation. The Daybreak sounds more neutral by comparison, allowing bass, vocals, guitars and other instruments to retain clearer separation rather than letting the low end dominate the mix. Ironically, despite the DMA sounding larger and more technically spectacular at first, I find the Daybreak more convincing when I’m actually trying to follow a mix. Its cleaner tuning gives me better left-to-right separation and more consistent layering, while individual instruments are easier to place without the bass occupying quite so much of the acoustic picture.

The DMA’s big advantage is therefore impact and immersion. It is the one I’d pick for bass-heavy electronic music, hip-hop, movies or simply when I want an IEM to sound big, physical and exciting. The Daybreak is the more disciplined and tonally predictable option, and I actually prefer it for a broader range of music—including electronic tracks—because it allows the different elements of the production to shine without the bass taking over the whole scene.

The DMA is more spectacular; the Daybreak is more balanced, technically cleaner and reference-oriented. For visceral bass and immersion, I’d take the DMA. For a more musically competent all-rounder that I can trust more readily, I’d take the Daybreak.

Criticisms & What Could Be Improved.

If CrinEar decides to revisit the Daybreak for a Mk2, I wouldn’t want a wholesale change in direction. At around $170, a bit of perspective is important. Expecting it to technically outperform IEMs costing two or three times as much simply because of the logo on the shell would be unrealistic; higher-tier drivers, complex acoustic implementations, and premium components inevitably cost real money. My wishlist is therefore about refinement rather than reinvention. I’d keep the excellent bass-to-midrange balance and natural vocal presentation intact, while dialing in a smoother upper-treble response alongside incremental gains in resolution, layering, micro-detail, and spatial depth.

I would also like to see tighter L/R channel matching. The measured deviation on my unit exceeded the ~1 dB threshold I consider the baseline for close tolerance (ideally < 0.5 dB). For a brand built on obsessing over measurement data and target adherence, you’d hope production QC would be held to that same standard. The imbalance isn’t severe enough to ruin the experience, but tighter matching would eliminate one more variable from an otherwise very well-considered design.

There is an important caveat here, though. That slight channel imbalance could be partly responsible for the minor treble roughness and softer imaging precision. While the overall tonal balance stayed consistent throughout my testing, I can’t know for sure until I’ve listened to a perfectly matched unit.

Most of these points are, frankly, high-level nitpicks—but that comes with the territory. When a reviewer known for being detail-oriented releases a product, I hold it to the same strict standards I apply in my own studio and reference testing. In that sense, we’re cut from a similar cloth: obsessive enough to spend hours dissecting that last few percent.

Ultimately, it’s all about elevating an already excellent $170 IEM into an absolute benchmark. At this price point, that’s a fantastic position to be in.

As a Reference Tool.

I would use the Daybreak as a secondary reference and monitoring tool, but not as my primary reference monitor. Its additional low-end weight and more engaging upper-frequency balance place it further from what I perceive as reference-neutral. Nevertheless, its controlled bass, natural midrange, imaging and separation make it genuinely useful for checking bass balance, vocal placement, timbre and general mix translation while keeping it more fun.

Conclusion.

The CrinEar Daybreak is a good example of why neutrality and enjoyment don’t have to be opposing ideas. CrinEar has taken a research-informed tonal foundation and made it more engaging without sacrificing the coherence and natural midrange that make the tuning work. The result is an IEM with excellent bass, a particularly convincing midrange, good treble extension, strong imaging and very respectable technical performance. Could the next iteration push the technical ceiling further? Absolutely – but those would mostly be refinements rather than fundamental shortcomings. At $170, the Daybreak is already an unusually complete package. And that’s ultimately what impresses me most: despite its elaborate driver configuration and carefully researched target, once the music starts playing, all of that largely disappears. The CrinEar Reference is the CrinEar I’d trust more for reference work. The Daybreak is the CrinEar I’d rather listen to when the work is finished.

For an IEM at $170, that’s a pretty compelling combination. Highly Recommended!