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.