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TRUTHEAR x Crinacle ZERO:RED In-ear Monitor
TRUTHEAR x Crinacle ZERO:RED In-ear Monitor
Adopt dual polyurethane suspension composite liquid-crystal dome diaphragm N52 Rubidium magnet double-cavity internal magnetic circuit dynamic driver
$54.99 USD
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Product Type
In-ear Monitor
Product Configuration
Dual Dynamic Drivers

Adopt dual polyurethane suspension composite liquid-crystal dome diaphragm N52 Rubidium magnet double-cavity internal magnetic circuit dynamic driver

Using a DLP-3D printing cavity, usually reserved for high-end multi-drivers products and custom earphones, and the hand-made glue dropping and capping process

Equipped with copper-plated silver cable with thicker diameter of single strand

Deliver outstanding objective indicators

Efficient Rational Driver Configuration

ZERO:RED houses double dynamic driver configuration, with a diameter of 10mm and the other diameter of 7.8mm, the mature internal magnetic circuit structure co-worked with flexible polyurethane suspension composite LCP liquid crystal dome diaphragm, but it has total different inner configuration between standard ZERO, which makes RED offer a better objective indicators while meeting the needs of R&D.


The same idea of frequency division is combined with completely different dynamic driver to form a brand-new system, in which the 7.8mm dynamic driver responsible for mids and treble uses a specially adjusted ultra-fine CCAW voice coil, which keeps the vibration system lightweight and makes sure the resonance frequency closer to the target curve and a smoother response. The 10mm dynamic driver responsible for bass accurately adjusts the number of the voice coil to meet the needs of the new frequency division circuit; At the same time, the diaphragm structure is adjusted, which makes the objective measurements such as nonlinear distortion significantly improved and has better bass response.

Accurate Hybrid Double Frequency Division

Relying on the high-precision DLP-3D printing technology, the acoustic nozzle structure with filtering function and the accurately calculated RC frequency division form a hybrid double frequency division, which makes the two dynamic drivers perform respectively, offering the closer design goal of objective indicators.

Excellent Objective Indicators

The R&D target of RED acquires totally new from TRUTHEAR, based on the original excellent objective index of ZERO, the nonlinear distortion of RED is further optimized at higher sound pressure level (>94dB), and its frequency response target curve has bass amplitude response characteristics similar to the public preference curve, while the target curve of CRINACLE IEF_Neutral is adopted in the frequency band above 1000Hz.


This characteristics provides a punchiest bass without affecting the sound of higher frequency bands; Compared with ZERO, RED is relatively less in dynamic,but still conforms to the characteristics of HRTF, which makes RED very suitable for long listening without fatiguing. Sonically, The treble of RED is bright without irritating, dispatching a warm, natural and pleasing performance.

Another important objective factor of multi-driver earphones is the phase. The full-frequency phase of ZERO:RED is highly consistent, and there is no convergence issue that occurs in common multi-driver earphones, eliminating the unnatural listening experience caused by phase distortion.

New Generation DLP 3D Printing Technology and Medical-Grade Resin

The DLP 3D printing cavity made by HeyGears, matched with its medical-grade high-transparency resin and internal coloring process, ensures the printing accuracy and efficiency, and realizing the delicate acoustic nozzle structure which is difficult to make true by the traditional process, and at the same time, delivering a lightweight cavity and ensuring the skin-friendly and reliable materials.

Optimized Processing Technology

TRUTHEAR not only pursues excellent objective measurements, but also attaches great importance to the optimization and improvement of processing technology; The cavity of ZERO:RED is still a sandwich-like structure (front cavity, decorative panel, and a few drops of glue to fill the seams). It directly realizes the natural smooth radian of the panel by using 3D printing technology, supplemented by a few of drops of glue to fill the seams, and combines with hand-made polishing and automatic gloss painting, offering an exquisite faceplate, and ensuring a durable and reliable structure.

High-Quality Cable + Flexible Expansibility

Four strands of high-quality silver-plated cable, combined with the universal 0.78 2Pin interface (the cavity is a sunken 0.78 2Pin female socket), achieves excellent sound quality, and expands the possibilities by changing cable.



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)

Package List


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

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