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1. Nano-titanium crystal PVD coating composite diaphragm greatly improves the damping while maintaining excellent damping characteristics.

2. 10mm composite cavity dynamic driver structure, offers the dynamic and full details.

3. Ideal acoustic coupling cavity verified by FEA finite element simulation combined with 3D printing experiment.

4. The overall frequency response curve conforms to VDSF Target Response[1] and highly fits the listening environment of the master tape.

5. The alloy casting external cavity, which is durable and excellent in texture.6. Comes with Spring tips

[1] VDSF Target Response is a target frequency response curve made based on HRTF of B&K HATS in diffusion field and ideal room preference curve. The closer the frequency response curve measured by headphones under B&K HATS is to the target frequency response curve, it can be roughly regarded that the more the headphones can restore timbre and soundstage imaging in frequency response.


[CHU] high-performance dynamic earphone

Material: Zinc alloy

Driver: 10mm high-performance dynamic driver

Diaphragm material: Titanium-coated

Sound coil: 0.035mm ultra-fine black CCAW

Magnetic circuit: N52 magnetic high-performance internal magnetic circuit

Acoustic filter: Patented anti-blocking (anti-imbalanced) acoustic filter

Sensitivity: 120dB/Vrms (@1kHz)

Impedance: 28Ω±15% (@1kHz)

THD: 1kHz≤1%

Frequency range: 10Hz-35kHz (IEC61094, Free Field)

Effective frequency response: 20Hz-20kHz (IEC60318-4, -3dB)


1. [CHU] earphone * 1

2. Cable tie * 1

3. Storage bag * 1

4. Ear hook * 2

5. Spring tips * 3 pais (S, M, L)

6. Manual * 1

7. QC Certificated card * 1