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TRUTHEAR HAS A SPECIAL 3D PRINTING TECHNOLOGY PRESENTED BY HEYGEARS
Truthear has incorporated Next Generation DLP 3D printing technology and medical grade resin shells into its in-ear monitor series. Truthear has partnered with HeyGears, a company founded in 2015. HeyGears is an innovative company that provides digital manufacturing solutions across various industries. The company focuses on 3D printing, software development, materials and big data processing.

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Presenting the most anticipated IEM, TUNED IN COLLABORATION WITH CRINACLE - THE TRUTHEAR ZERO
Truthear is a relatively new company on the ChiFi block, founded in 2022. In its first iteration, Truthear has teamed up with front-line reviewer Crinacle to bring you the most anticipated in-ear monitor, the ZERO. Crinacle has a growing repertoire of collaboration IEMs and has partnered with established brands like Moondrop, FiiO, SeeAudio, 7HZ, etc. Crinacle also has the most extensive database of headphone and IEM measurements and is known for its collaborations and tuning expertise. With the ZERO, Truthear and Crinacle hit the mark, bringing you the best-in-class tuning. The Truthear ZERO also features a unique driver configuration and is here to impress you with its sonic features!

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FEATURES DUAL DYNAMIC DRIVES THAT DELIVER BRAIN-MELTING SONIC PERFORMANCE
Truthear has adopted an efficient and rational driver configuration for ZERO. It houses dual dynamic drivers with a diameter of 10mm and a diameter of 7.8mm. Truthear ZERO features a dual-cavity internal magnetic circuit dynamic driver with N52 Rubidium magnet and dual polyurethane suspension composite liquid crystal dome diaphragm. Thanks to the mature internal magnetic circuit structure working together with the flexible polyurethane suspension composite LCP liquid crystal dome diaphragm, Truthear ZERO delivers a smooth, mellow and detailed sound. The 7.8mm dynamic driver responsible for mid-high frequency uses an ultra-thin CCAW voice coil following the light vibration system, so the sensitivity of high frequency is effectively improved and the response is smoother, making ZERO’s treble tone clear and extremely detailed. On the contrary, the 10mm dynamic driver responsible for low frequency uses a weighted voice coil, which reduces the natural resonance frequency for accurate frequency division and provides ZERO with a full and vivid low frequency, enabling it to perform as a subwoofer. Thanks to its crossover and custom driver topology, the ZERO delivers mind-melting sonic performance!

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ZERO IS A SONIC OASIS OF HAPPINESS WITH PRECISION HYBRID DUAL-FREQUENCY SPLITTING
Truthear ZERO has a low-frequency gain and high-frequency response that match the HRTF characteristics, making ZERO have an objective index comparable to professional in-ear monitors. It is not as cold and harsh as monitor headphones, and the overall timbre is natural and full. Another critical objective factor of multi-driver headphones is phase. ZERO's "full-frequency phase" is extremely consistent, and there is no convergence problem that occurs in multi-driver headphones, eliminating the unnatural listening experience caused by phase distortion. Based on high-precision DLP-3D printing technology, the acoustic nozzle structure with filtering function and the accurately calculated RC frequency section form a hybrid dual-frequency section. This design architecture enables the two dynamic drivers to perform respectively, achieving the closer design target of objective indicators. Experience an oasis of sonic bliss with the brand-new ZERO!

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HIGH PURITY CABLE
Truthear ZERO adopts Next-Generation DLP 3D printing technology and medical grade resin. The DLP 3D printing cavity produced by HeyGears is matched with medical grade high transparency resin and internal coloring process, ensuring printing accuracy and efficiency. The entire "cavity" of Truthear ZERO adopts a sandwich structure (front, decorative panel and glue drip cover). Truthear ZERO undergoes a glue drip process, and is solidified and shaped by ultraviolet, and processed by hand polishing and varnish spraying. This process effectively strengthens the hardness processed by the glue drip capping process, resulting in a beautiful design. Truthear also pays special attention to the cable design. Truthear ZERO comes with a high-purity oxygen-free cable. It features four-wire high-quality silver plating combined with universal 0.78 2Pin interfaces. It provides excellent sound quality and expands the upgrade possibilities of aftermarket cables.
Note: The blank is a sunken 0.78mm 2-pin female socket.

• Configuration: 10mm+7.8mm Dynamic Driver
• Diaphragm Material: PU + LCP composite diaphragm
• THD: THD@1KHz≤%1
• Sensitivity: 117.5dB/Vrms (@1KHz)
• Impedance: 10Ω±15% (@1kHz)
• Frequency Response: 20Hz-39500Hz (IEC61094 ， Free Field)
• Cable: Oxygen-free Silver Plated

Package Included
• TRUTHEAR [ZERO] * 1
• Four Stands High Quality Silver Plated Cable
• Ear tips * 3 pairs (S, M, L) (Large Diameter)
• Ear tips * 3 pairs (S, M, L) (Thin Diameter)
• Foam Ear tips * 1 pair (M)
• Manual * 1