Truthear x Crinacle Zero Red Dual Dynamic Iems
Description
The ZERO:RED is a highly refined In-Ear Monitor (IEM) resulting from a collaboration with the audio reviewer Crinacle. It builds upon its predecessor, the Truthear Zero, by implementing a superior, highly specific tuning curve.
It features a Dual Dynamic Driver configuration, using a $10\text{mm}$ driver and a $7.8\text{mm}$ driver, with an advanced crossover system. The tuning is aimed at achieving a pure IEF_Neutral Target for the mids and highs, coupled with a well-controlled sub-bass boost that delivers deep, impactful low-end without muddying the crucial midrange frequencies.
The housing is built using DLP 3D-printing technology and medical-grade resin, allowing for the precise internal acoustic structures necessary for its complex dual-driver and crossover design. The design features a smooth, ergonomic shell with a distinctive red decorative panel.Order from T-Tech or visit our shop at Shop- (New)06, 1st Floor, Shah Amanat City Corporation Super Market, Chittagong, Bangladesh.
Specifications (Spe)
| Specification | Detail |
| Driver Configuration | Dual Dynamic Driver (DD) |
| Driver Sizes | $10\text{mm}$ DD (Low Frequencies) + $7.8\text{mm}$ DD (Mids/Highs) |
| Diaphragm Material | Polyurethane Suspension LCP Liquid Crystal Composite Diaphragm |
| Acoustic Technology | DLP 3D-Printed Acoustic Cavity & Hybrid Double Frequency Division (Crossover) |
| Impedance | $17.5\Omega \pm 15\%$ (@1kHz) |
| Sensitivity | $117.5\text{dB/Vrms}$ (@1kHz) |
| THD (Total Harmonic Distortion) | $< 1\%$ @1kHz |
| Frequency Response | $20\text{Hz}–40.5\text{kHz}$ (Free Field) |
| Connector Type | Detachable $0.78\text{mm}$ 2-Pin (Recessed) |
| Cable | High-Quality 4-strand Silver-Plated Copper Cable |
| Plug Type | $3.5\text{mm}$ Single Ended |
| Shell Material | Medical-Grade DLP 3D-Printed Resin |
Features:
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Dual Dynamic Drivers for Rich and Detailed Audio:At the core of the Zero RED lie two meticulously designed dynamic drivers. One driver measures 10mm, while the other is 7.8mm. This combination, along with a mature internal magnetic circuit structure, delivers a powerful and nuanced soundscape. Furthermore, the drivers utilize a flexible polyurethane suspension composite liquid crystal dome diaphragm paired with an N52 Rubidium magnet. These elements work in concert to ensure exceptional clarity across the entire frequency range, from deep bass to crisp highs.
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Precision Engineering Meets Innovation:The Zero RED boasts a DLP-3D printed cavity, a technology typically reserved for high-end multi-driver products and custom earphones. This innovative approach allows for unparalleled precision and control over the internal acoustics of the IEMs. Additionally, the hand-made glue dropping and capping process adds a touch of human artistry to the manufacturing process, ensuring a perfect seal and optimal sound performance.
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Unveiling the Science Behind the Sound:Truthear prioritizes not only achieving excellent objective measurements but also meticulously optimizing and refining the manufacturing process. While maintaining a sandwich-like cavity structure (front cavity, decorative panel, and strategically placed glue), the Zero RED boasts a unique internal configuration compared to the standard Zero model. This distinction translates to superior objective indicators, ensuring the Zero RED delivers exceptional technical performance.
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Aesthetics Meet Functionality:The Zero RED comes equipped with a premium copper-plated silver cable. This cable features a thicker single-strand design, contributing to improved signal transmission and reduced audio distortion. Moreover, the cable’s aesthetic complements the sleek design of the IEMs themselves.
- The Truthear x Crinacle Zero RED IEMs are a testament to meticulous engineering and a dedication to exceptional sound quality. By combining innovative technologies with high-quality materials, these IEMs offer an immersive listening experience for audiophiles and music enthusiasts alike.








Truthear x Crinacle Zero:RED Dual Dynamic Drivers in-ear monitors Best Price in Banggladesh
Truthear x Crinacle Zero:RED Dual Dynamic Drivers in-ear monitors Best Price in Banggladesh is 6,400 BDT.
FAQs
| Question | Answer |
| What does the “Dual Dynamic Driver” configuration do? | It uses two separate dynamic drivers with a low-frequency crossover, allowing the $10\text{mm}$ driver to act as a dedicated subwoofer for controlled, deep bass without impacting mid-range clarity. |
| What is the sound signature of the ZERO:RED? | It is tuned for IEF_Neutral (Mids/Highs) with a Sub-Bass Focus. This provides clean, natural vocals and treble, complemented by a deep, punchy, but controlled bass response. |
| What is the purpose of the $10\Omega$ adapter? | The adapter is an optional accessory that changes the impedance, resulting in a $\approx 3\text{dB}$ boost to the bass/sub-bass frequencies, creating a warmer “Bass+” sound profile. |
| Does it require an external amplifier (amp)? | No. With $17.5\Omega$ impedance and $117.5\text{dB/Vrms}$ sensitivity, the IEMs are easy to drive and will reach sufficient volume with most smartphones or basic dongle DACs. |
| How is the fit? | The shell is ergonomic and lightweight. However, the nozzle diameter is wide, which may cause discomfort or fit issues for users with smaller ear canals. Tip rolling (using aftermarket tips like SpinFit CP155 or W1) is highly recommended for best comfort and seal. |
| Is the cable replaceable? | Yes, it uses the standard and robust $0.78\text{mm}$ 2-Pin detachable connector. |






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