MEZE AUDIO ASTRU Titanium In-Ear Monitors (IEM)

The Meze Audio ASTRU is a premium in-ear monitor with a one-piece pure titanium shell and a single high-performance dynamic driver. It delivers a punchy, full-bodied and richly detailed sound, combining the layering and imaging usually associated with multi-driver IEMs with the natural warmth and coherence of a single dynamic driver.

Visceral, natural sound

ASTRU sounds dense, immersive and engaging, with a realistic and impactful presentation. A rear vent equalises pressure behind the driver, allowing deep, extended bass below 200 Hz and relieving pressure in the ear canal for fatigue-free long-term listening.

10 mm multilayer dynamic driver

The diaphragm dome has an outer gold coating applied in 80 ultra-thin layers by magnetron sputtering over 48 hours, followed by a titanium layer bonded to a PEEK base. This multi-stage construction gives smoother, more extended treble and a natural transient response.

Pure titanium shell

Each housing is CNC-machined from a single block of pure titanium and finished in a multi-stage electroplating process to a smooth satin surface – one matched pair takes up to 7 days of processing. The shape builds on the ergonomics of the ADVAR and ALBA and follows the natural contours of the ear for long-term comfort without pressure points. A nickel wax guard protects the acoustic filter.

Accessories

The 1.2 m cable uses silver-plated LC-OFC conductors in a dual-strand configuration with 161 conductors per strand, SoftFlex PVC insulation, CNC-anodised aluminium housings and a gold-plated 4.4 mm balanced plug. A 4.4 mm to 3.5 mm adapter is included for wider compatibility, together with five pairs of liquid silicone ear tips tuned for ASTRU, a hard carrying case and a PU leather envelope.

Key features

• Single 10 mm dynamic driver with multilayer gold/titanium/PEEK dome
• Full-bodied, detailed sound with multi-driver-like imaging
• One-piece CNC-machined pure titanium shell
• Rear vent for extended bass and fatigue-free listening
• 1.2 m silver-plated LC-OFC cable with 2-pin connectors and 4.4 mm plug
• 4.4 mm to 3.5 mm adapter
• 5 pairs of liquid silicone ear tips (XS, S, M, L, XL)
• Hard case and PU leather envelope

Specifications

• Driver type: dynamic, 10 mm
• Frequency range: 5 Hz – 35 kHz
• Impedance: 32 Ω
• Sensitivity: 111 dB SPL/mW at 1 kHz
• Total harmonic distortion: <0.1% at 1 kHz
• Input connector: 2-pin (0.78 mm)
• Weight: 13.4 g

In the box

• Meze Audio ASTRU in-ear monitors
• 1.2 m dual-strand cable with 2-pin (0.78 mm) connectors and gold-plated 4.4 mm jack
• 4.4 mm to 3.5 mm gold-plated adapter
• Custom ear tips in sizes XS, S, M, L, XL
• PU leather envelope
• Hard carrying pouch