Advanced Dual Driver Configuration
The Truthear x Crinacle ZERO RED IEM adopts a dual polyurethane suspension composite liquid-crystal dome diaphragm with an N52 Rubidium magnet double-cavity internal magnetic circuit dynamic driver. This innovative driver setup ensures superior audio performance and precision.
High-End 3D Printing Technology
Using DLP-3D printing technology, typically reserved for high-end multi-driver products and custom earphones, the ZERO RED features a hand-made glue-dropping and capping process. This meticulous manufacturing technique enhances both the aesthetic and acoustic properties of the earphones.
Superior Cable Quality
Equipped with a copper-plated silver cable of a thicker diameter for each strand, the ZERO RED ensures minimal signal loss and outstanding audio quality. This premium cable construction enhances durability and sound fidelity.
Efficient and Rational Driver Configuration
The ZERO RED houses a dual dynamic driver configuration, featuring a 10mm driver and a 7.8mm driver. The flexible polyurethane suspension composite LCP liquid crystal dome diaphragm and a mature internal magnetic circuit structure ensure the RED offers superior objective indicators compared to the standard ZERO model.
Innovative Frequency Division System
The 7.8mm dynamic driver, responsible for mids and treble, uses an ultra-fine CCAW voice coil, providing a lightweight vibration system and smooth frequency response. The 10mm dynamic driver, responsible for bass, features an adjusted diaphragm structure for improved nonlinear distortion and bass response, ensuring accurate sound reproduction.
Accurate Hybrid Double Frequency Division
Utilizing high-precision DLP-3D printing technology, the acoustic nozzle structure with filtering functions, and an accurately calculated RC frequency division form a hybrid double frequency division system. This system allows each dynamic driver to perform optimally, achieving the design goal of precise objective indicators.
Excellent Objective Indicators
The RED model's R&D target is based on TRUTHEAR's original ZERO model, with further optimization of nonlinear distortion at higher sound pressure levels (>94dB). The frequency response curve provides bass amplitude response similar to the public preference curve, while the CRINACLE IEF_Neutral curve is used for frequencies above 1000Hz, ensuring a balanced and natural sound.
Consistent Full-Frequency Phase
The ZERO RED's full-frequency phase is highly consistent, eliminating the phase distortion common in multi-driver earphones. This consistency ensures a natural listening experience without the unnatural effects caused by phase issues.
Next-Generation 3D Printing and Medical-Grade Resin
The ZERO RED features a DLP 3D printing cavity made by HeyGears, utilizing medical-grade high-transparency resin and an internal coloring process. This ensures high printing accuracy, efficiency, and a lightweight, skin-friendly, and reliable cavity.
Optimized Processing Technology
TRUTHEAR emphasizes both excellent objective measurements and processing technology optimization. The ZERO RED's sandwich-like cavity structure, combined with 3D printing, hand-made polishing, and automatic gloss painting, results in an exquisite and durable faceplate.
High-Quality Cable and Flexibility
The ZERO RED includes a four-strand high-quality silver-plated cable and a universal 0.78 2Pin interface, allowing for excellent sound quality and flexibility through cable changes.
Driver: 10mm+7.8mm Dynamic Driver
Diaphragm: Polyurethane Suspension LCP Liquid Crystal Composite Diaphragm
Impedance: 17.5Ω±15% @1KHz
Sensitivity: 117.5dB/Vrms @1KHz
THD: < 1%@1khz
Frequency Response Range: 20-40.5kHz (IEC61094, Free Field)
Effective Frequency Response Range: 20-20kHz (IEC60318-4, -3dB)
Microphone: No
Warranty Period: 1 Year
In The Box -
1. TRUTHEAR [ZERO:RED] * 1
2. Four Stands of High-quality Silver-plated Cable
3. Ear-tips * 3pairs (S, M, L) (Thick Diameter)
4. Ear-tips * 3pairs (S, M, L) (Thin Diameter)
5. Foam Ear-tips * 1pair (M)
6. 10Ω Impedance Adapter
7. Manual * 1
8. Warranty 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.
Truthear x Crinacle ZERO:RED IEM
Truthear x Crinacle ZERO:RED IEM
Comfortable fit, good for long listening sessions.
Amazing Sound Quality
Outstanding sound quality, worth every penny
I would like to thank Purecast & Pritam ...I was not sure if this was required. I however noticed it's not a normal dac it's a DAC Amp so it also amplifies sound...it comes in a cool packaging with cover and I am thankful that Audiocular was thoughtful to add a typeC to Type A convertor as I am using this mainly in my Dell laptop. Thanks Audiocular.
Bought the Moondrop Dawn Pro Balanced DAC/AMP recently. Build feels premium with a sleek metal body, swappable 3.5 mm & 4.4 mm outputs, plus handy volume buttons. Noticed extra loudness and a subtle but clear improvement in my IEMs. For the price, totally worth it! 🎶
I used lots of earphones and earbuds, neckband but this IEMs sound is different unbelievable I loved it Thanks 👍🏻
Excellent product. Super premium and sounds balanced.
THE HEADPHONE IS ONE OF THE BEST WHICH DOESN'T NEED ANY TEST BECAUSE ITS THE BEST, THE BLUETOOTH RANGE IS SO LONG THAT ONCE I FORGOT MY MOBILE WHILE GOING TO MARS , NORMAL HEADPHONE WILL DISCONNECT IN THAT RANGE ABOUT 33.9 MILES BUT THEN ALSO THE HEADPHONE DOESN'T DISCONNECTED AND THE MUSIC WAS STILL PLAYING NOW I WAS COMING BACK FROM MARS AND TYPED THE REVEIW WITH MY BARE HANDS 😀
Although termed as Basshead, it's clean and crisp. Bass knows when to punch and when to calm. Upgrading from Juzear Defiant which is itself a great allrounder to its price. Thoroughly enjoying the Martilo. Finally great service by TAS. Looking forward for more.
good build qualityand High quality audio output
Absolutely a beast, had to wait since it was out of stock. This is the best under 3K and probably the best with Mic under 5k.
If you are a beginner audiophile and wanted to invest friendly budget IEM then EarAcoustic STA-Hi End Series IEM is a way to go. The sound is awesome and you can hear every node it contains.
It is the best and clean sounding IEM, perfect for the Beginner.
I love the fact that I can change the nozzle and its a little different sounding, so its two in one.
The cable quality is out of the world no external sound when I touch it.
I can hear so many details clearly. I say please go for this, it is perfect first IEM and the Perfect Upgrade if you had IEM under 2k before
It provides Awesome sound quality go and buy it m
🎧 KZ Castor Pro IEM – Review
🔊 Sound Quality
The KZ Castor Pro delivers clear and detailed sound with excellent separation across lows, mids, and highs. The decent thumping bass is tight and controlled, giving energy to tracks without overwhelming the vocals or instruments. Its super-balanced tuning ensures a natural, enjoyable listening experience suitable for all genres.
🎚 Unique DIP Switch Equalizer
What sets the Castor Pro apart is its DIP switch physical equalizer. With up to 16 different tuning options, it allows listeners to adjust the sound profile on the go—boosting bass, enhancing treble, or keeping it neutral. This feature gives it a level of flexibility rarely seen in IEMs at this price point.
🔇 Noise Isolation
Although it lacks active noise cancellation, the design offers an excellent passive seal. The snug fit ensures that outside noise is effectively blocked, making the listening experience immersive and ensuring ANC doesn’t feel like a missing feature.
🎼 Hi-Res & DAC Performance
For those using Hi-Res lossless audio, pairing the Castor Pro with a DAC is highly recommended. The extra power and clarity from a DAC enhance the already impressive soundstage, detail retrieval, and overall dynamics, making the listening experience truly premium.
💰 Value for Money
At its smart price, the KZ Castor Pro punches well above its weight. It combines detailed sound, punchy bass, balanced tuning, and innovative features—making it a strong choice for both audiophiles on a budget and everyday music lovers.
Have been using these buds for like an year now, they gave me a great time all that while, only recently the cable started getting green and there was an issue with audio drop on even a slight movement (like every earphone ever), but still a great investment for an year.
Got this as my first iem from audio store.. much much more worth than the price.. the bass!!.. my gawddd, it's something which is gonna surprise you.. I got it paired with the moondrop echo a dac.. and trust me, couldn't have asked for anything better.. and the delivery was done to me in kolkata, just within a day.. remarkable job audio store!♥️
Loved the new gear they sound absolutely phenomenal and mind if say the looks and aesthetic of the KZ Castor Pro is underrated for its price, as a newbie I was a little hesitant to jump in this rabbit hole, but it was worth it. Shoutout to The Audio Store to build up my courage, they were very helpful as I was placing my order I fumbled and they responded very positively and helped me correct my mistake. Thank You
Brand Warranty
100% Original products with brand warranty
7 Days Replacement
On all orders*
Fast & Free Shipping
Ships in 24 Hours*
Secure Payments
Visa, Mastercard, EMI, Net Banking, UPI, BHIM, Wallet's
I would like to thank Purecast & Pritam ...I was not sure if this was required. I however noticed it's not a normal dac it's a DAC Amp so it also amplifies sound...it comes in a cool packaging with cover and I am thankful that Audiocular was thoughtful to add a typeC to Type A convertor as I am using this mainly in my Dell laptop. Thanks Audiocular.
doesn't heat up, crisp signal delivery and no distortion
Bought the Moondrop Dawn Pro Balanced DAC/AMP recently. Build feels premium with a sleek metal body, swappable 3.5 mm & 4.4 mm outputs, plus handy volume buttons. Noticed extra loudness and a subtle but clear improvement in my IEMs. For the price, totally worth it! 🎶
I used lots of earphones and earbuds, neckband but this IEMs sound is different unbelievable I loved it Thanks 👍🏻
Excellent product. Super premium and sounds balanced.
I purchased audiocular spark DAC from audio store few days ago. I was really confused between spark and ja11 but finally got this. The DAC is best here , it works well with my kz castor pro and Simgot ew300. Just purchase this instead of ja11.
This is a very good product thanks to the Audio store
The Tanchjim Bunny surprised me with its warm, smooth sound and comfortable fit. Bass is controlled yet punchy, vocals are natural and engaging, and treble is detailed without harshness. The lightweight build and good isolation make it perfect for long sessions. Overall, an excellent budget IEM with great value for money. I appreciate team TAS for their excellent service and support.
Good product andservice
these sound amazing if you like listening to female artists like lisa new jeans etc. and they are also amazing in other areas.Also app support makes them very versatile.