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Description
Truthear x Crinacle ZERO:BLUE2 IEM – Dual Dynamic Drivers, Refined to Perfection

Experience the evolution of precision audio with the Truthear x Crinacle ZERO:BLUE2 – an in-ear monitor crafted for audiophiles who demand accuracy, clarity, and balance across the frequency spectrum. This second-generation collaboration with Crinacle builds upon the legacy of the original ZERO, offering significant upgrades in driver architecture, frequency response, and overall sound performance.
Dual Dynamic Drivers with Upgraded Architecture
The ZERO:BLUE2 features an advanced dual-dynamic driver system with a 10mm solid silicone suspension LCP dome (N52 magnet) for deep bass and a newly refined 7.8mm polyurethane suspension LCP dome (N55 magnet) for crisp mids and detailed highs. This dual-cavity magnetic circuit design achieves a remarkable increase in sensitivity and upper-frequency resolution, allowing you to hear subtle recording details with lifelike accuracy.
Optimized Frequency Crossover & Tuning
Engineered with a hybrid multi-frequency crossover and low-distortion circuitry, ZERO:BLUE2 ensures smooth transitions between frequency ranges. The filtered nozzle, manufactured with HeyGears’ precision DLP 3D-printing, enhances acoustic performance while supporting a well-balanced soundstage. Expect punchier bass, transparent mids, and extended treble response with outstanding clarity.
Enhanced Driver Efficiency & Objective Measurements
With a 25% larger magnet and 50% larger dome on the 7.8mm driver, ZERO:BLUE2 achieves higher conversion efficiency and superior high-frequency sensitivity. Objective measurements show reduced nonlinear distortion and a more accurate frequency curve aligned with human hearing (HRTF), resulting in vivid sound reproduction and a natural listening experience free from phase distortions.
Durable, Lightweight Shell with Ergonomic Comfort
Built using high-end 3D-DLP printing technology, the shell is lightweight yet robust, with a redesigned faceplate and improved nozzle geometry for better fit and comfort. The skin-friendly cavity ensures fatigue-free listening, even during extended use.
Upgraded Silver-Plated Cable with Optional Mic
ZERO:BLUE2 includes a premium silver-plated copper coaxial cable with a 0.78mm 2-pin connection, offering better durability and improved conductivity. The bundled version also includes a high-quality oxygen-free copper microphone cable, perfect for gaming, calls, and live monitoring, delivering versatility without compromising audio fidelity.
Why Choose the Truthear ZERO:BLUE2?
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Dual-dynamic driver system for ultra-precise sound
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Enhanced high-frequency resolution with upgraded 7.8mm driver
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Punchy bass and clean mids from improved 10mm driver
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Advanced crossover and low-distortion tuning
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Comfortable, skin-friendly 3D-printed shell
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Detachable upgraded cable with optional mic
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Tuned in collaboration with Crinacle for reference-grade accuracy

Whether you're a music enthusiast, gamer, or studio monitor user, the Truthear x Crinacle ZERO:BLUE2 delivers a reference-quality sound experience that rivals IEMs in much higher price brackets.
Name: TRUTHEAR ZERO:BLUE2
Driver: 10mm + 7.8mm Dynamic Driver
Diaphragm: Silicone Suspension LCP Liquid Crystal + Polyurethane Suspension LCP Lquid Crystal Composite Diaphragm
Impedance: 5.8Ω±15% @1KHz
Sensitivity: 119.5dB/Vrms @1KHz
THD: <1% @1khz
Frequency Response Range: 20-41kHz (IEC61094, Free Field)
Effective Frequency Response Range: 20-20kHz (IEC60318-4, -3dB)
Package List
1. TRUTHEAR [ZERO:BLUE2] * 1
2. 3.5mm Standard Cable * 1
3. 3.5mm Mic Cable * 1 (Optional)
4. Eartips * 3 Pairs (S, M, L)
5. Foam Eartips * 3 Pairs (M)
6. Foam Eartips * 1 Pair (S)
7. 5Ω Impedance Adapter* 1
8. User Manual * 1
9. Warranty Card * 1
10. Anime Card * 1
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form Cable: 1-month warranty only for manufacturing defects only
TRUTHEAR, founded in 2022 and based in Shenzhen, specializes in high-performance in-ear monitors (IEMs). We provide authentic and accurate audio experiences for music enthusiasts, professionals, and artists. Our commitment is to deliver high-quality, cost-effective audio products, continually exploring advancements in the audio field.
Yeah, IEMs are new for me, so I'm getting into them slowly. I like the sound quality, but at first, it was too loud. I tried every ear tip to find a match, and only one pair fit my ears, so I'm using those. The treble was a bit much, so I adjusted the EQ, and now it's fine. The earbuds are a bit big for my ears, but it's okay now. I do miss the warm, bassy sound output I get from my Sony WF-1000XM4, but I like this IEMs because they offer better sound quality than the Sony WF-1000XM4.
The supplied cable with mic seems to be of lower quality than the one without the mic. Sonically its too good.
These are good.
This IEMs delivers excellent sound across all music genres and is used daily. The unboxing experience is premium. However, a minor issue has been identified: the right-side IEM produces a subtle noise when tapped while worn, which may indicate a manufacturing defect.
Bright-sounding with good bass and treble. Silicone tips can feel harsh for some. Indian instruments sound very good with silicone tips, though. Foam tips minimize harsh sound, and bass is reduced too. Overall happy with purchase.
best all rounder for the price, good for gaming and music
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from 6841 reviews
Very quick and satisfying deliveries along with a wide range of products
Absolutely loved the soundstage and neutral bright tuning of this iem.
Best IEM for beginners. It helps to know what music taste matches to you.
These are great, every element of a song is well balanced. However, that balance is a double-edged sword, as it lacks bass. So, if you're looking for a strong base signature, you might want to choose something else or use an equalizer, which is what i'm doing.
This is a solid cable, which delivers stunning sound. I use this cable to connect my Hifiman EF400 to Fiio K15. This is a major upgrade to the sound (as compared to the two standalone).
I bought Cadenza as my first IEMs, before buying these I researched a lot about every kind in this budget I could go for, I streched and bought these as something which sounds, harmonious, smooth and comfortable for long sessions, even then the details and the sound still puts me in awe beating any earbuds and in ear sound system I have ever tried.
One of the best IEM.
EarAcoustic STA-Hi End Series IEM is too warmform me which is my sound signature. Beryllium driver tuned so fantastic. When was received this never go off from my ears to 4 hrs. I have so many brands and so many chifi IEMs used but this EarAcoustic STA-Hi End Series IEM is totally blowned me away. That's why this EarAcoustic STA-Hi End Series IEM is highly recommended. Thanks once againMr Pritam Ji for suggesting me so wonderful IEM in audio library collection.
The product came with all the accessories it should have, the box wasn't damaged at all and delivery was quick. It only took 2 days to be delivered and came with good enough packaging.
Overall, Very satisfied by theaudiostore. While this was my first time buying from them, It definitely won't be the last.
When I was a kid, somewhere around 2005–2007, I was gifted a Sony cassette Walkman. I was too young to care about model numbers or sound signatures. I just knew that pressing play felt important. That Walkman is gone now. Probably sacrificed to the great black hole where old chargers, socks, and childhood joy go to die. But the want never left.
So years later, I did what any emotionally stable adult does. I bought a Walkman again. This time, the Sony NW-A306. And no, this is not nostalgia cosplay. This is something else.
-> A Small Device With Strong Opinions:
The NW-A306 looks like a cute mini smartphone that went on a digital detox retreat. No camera. No speaker. No SIM. No “bro just one notification”. It exists only for music and has zero interest in your productivity apps or reels.
Physically, it feels solid and intentional. Buttons still exist. Sony clearly assumes you might listen to music without staring at a screen like it owes you money.
-> Android, But With Discipline:
It runs Android 14 and yes, streaming apps work. YouTube, YouTube Music, Spotify, Apple Music, Tidal, ... etc all fine. But here’s the thing, you can choose how modern you want it to be.
With Google services running, I casually listened for about 6 to 7 hours and still stayed under 60 percent battery usage. That’s respectable. Disable Google services and background nonsense, and suddenly the battery life becomes “arre yeh toh chale hi ja raha hai” level good.
Sony didn’t brute-force anything. This device feels tuned, not overpowered.
-> Sound - Sony Being Sony:
Let’s clear this upfront. Walkman is the legacy on which the iPod later thrived. Apple polished the idea. Sony invented the feeling.
And yes, it is Sony, so bass exists. No question about that.
The bass here is not the shaadi DJ type that enters before the song does. It is controlled, confident, and supportive. With KZ ZAS and Sony XM4s, the sound is clean, warm when needed, detailed when it matters, and never tiring.
As a USB DAC, this thing is frankly ridiculous for its size. Plug it into a PC and it behaves like a serious audio device pretending to be small for fun. Stable, clean, no tantrums.
This is not five-minute wow sound. This is “ab bas ek album aur” sound.
-> Local Music and the Joy of Making Things Difficult:
Now comes the part streaming apps will not like.
Yes, we have everything. Spotify, Apple Music, Tidal, Amazon, Qobuz, YouTube. Music is everywhere. And somehow, nothing sticks.
Algorithms keep suggesting. You keep skipping. Half the time you don’t even remember what you listened to two hours ago. Music becomes vibe. Background. White noise with feelings.
Owning music changes behaviour.
Ripping CDs into FLAC, fixing metadata, web scraping album art, organizing albums. This is effort. And effort creates attention. You listen to albums. You read lyrics. You notice production. You sit still.
Sony Music Center on Windows actually helps instead of testing your patience. Metadata, album art, even 12-tone analysis. Organizing music feels intentional, not like punishment for liking files.
The NW-A306 makes music feel yours. Not rented. Not borrowed. Yours.
Ironically, it uses modern tech to make things slightly complicated on purpose, so listening becomes simple again.
-> So Why Does This Exist?
The NW-A306 is not trying to replace your phone. It is reminding you why music once deserved its own device.
It is focused. It is disciplined. It does not beg for attention. And that is rare now.
If you treat music as something to truly listen to and not just something playing while you scroll, this Walkman makes complete sense. Emotionally. Practically. Logically.
Also, it feels really good to own your music again. Like, irrationally good.
Some loops are worth closing.
i was scared what if i will get scammed, or will the put stone in the box ,
but nothing happened like that, best unboxing experience, do take video, as its mentioned in the package either,
product 10/10
the only issue the extra included case has no guide how to put earbuds in it and as i am an idiot i inserted it wrong took 45 minutes reinserted, fites to tight,
if you are stuck just like me - [****] email me i will help,
best audio , ANC is decent, call good, battery decent, overall excellent package, didnt find in ear detection, or find my earbuds only thing which arnt deal breakers
Amazing product and quick delivery.
There is no hissing sound with Kefine Klean iem
It's really a good beginner iem who qre comes into the iem first time
From perspective the wide bore tips were very flat in term of eq, normal bore and silicon tips performanced the best


















