Meze Audio Astru

Meze Audio Astru

In-ear monitors

Designed for devoted music lovers who demand accuracy, realism, and fidelity, ASTRU combines advanced acoustic engineering with uncompromising titanium construction to deliver a listening experience that is visceral, immersive, and deeply musical.

CLARITY BEYOND SOUND

ASTRU is more than an IEM, it is a statement piece.

A full-titanium body, a single high-performance dynamic driver, and a precisely tuned acoustic architecture work seamlessly together to deliver the layering, imaging, and resolution typically associated with multi-driver designs, along with the tonal density and natural warmth only a single dynamic driver can offer.

Simplicity raised to the highest level of performance.

The sound signature is full-bodied, natural, and engaging: a rich, neutral tuning with realistic timbre, excellent resolution and detail retrieval, and strong dynamics and texture across the entire frequency range from a tight, impactful low end to transparent, extended highs that reveal fine musical detail without causing fatigue.

DESIGN & CRAFTSMANSHIP

ASTRU’s chassis builds on the ergonomic foundations of ALBA and ADVAR, further refined for improved long-term comfort.

Each unit is CNC-machined from a single block of pure titanium, with multilayer electroplating to achieve a signature satin finish.

Processing one matched pair of shells requires up to seven days:

• Full-Titanium One-Piece Housing: CNC-machined for precision fit, durability, and a lightweight feel at just 13.4g (0.47 oz);
• Electroplated Satin Finish: Multilayer electroplating process delivers a refined, premium aesthetic;
• Electroplated Nickel Wax Guard: Built-in protection without compromising sound transparency;
• High-Quality 4.4 mm Balanced Cable: Silver-plated LC-OFC conductors, 161 conductors per strand, SoftFlex PVC insulation, CNC anodised aluminium housings, and a gold-plated 4.4 mm balanced termination — optimised for signal purity, low resistance, and compatibility with high-end portable sources;
• Included Accessories: 4.4 mm to 3.5 mm adapter, five pairs of liquid silicone ear tips (XS, S, M, L, XL), hard pouch, and PU leather envelope for everyday carry.

ACOUSTIC ENGINEERING

At the heart of ASTRU is a 10 mm dynamic driver featuring an advanced multilayer metal-coated composite diaphragm, which results from a meticulous, multi-stage manufacturing process:

• Gold-Coated Outer Dome: 80 ultra-thin layers of gold applied via physical vacuum DC magnetron sputtering over a 48-hour process, ensuring unmatched consistency and controlled resonance.
• Titanium + PEEK Dome Construction: A titanium layer bonded to a PEEK dome base balances stiffness, transient speed, and resonance control;
• Precision Magnetic Architecture: A vented backplate, inner and outer ring magnets, and a front magnetic spacer work in concert for optimal driver excursion and dynamic linearity;

This configuration achieves multi-driver performance, layered imaging, precise staging, and high resolution within a single, cohesive driver system.

COMFORT, LONGEVITY & SERVICEABILITY

ASTRU is engineered for extended, fatigue-free listening sessions.

Its titanium construction ensures long-term durability and resistance to wear, while the modular cable connection (2-Pin) and included accessories support long-term ownership and ease of maintenance.

Meze Audio Astru Specifications

Driver Type – Dynamic

Sensitivity – 111 dB SPL/mW at 1 kHz

Driver Size – 10 mm

Input Connector – 2-pin

Frequency Range – 5 Hz – 35 kHz

Total Harmonic Distortion – <0.1% at 1 kHz

Impedance – 32 Ω

Weight – 13,4 g (0,47 oz)

ASTRU [ˈas.tru] Romanian noun — STAR

Dynamic. Cosmic. Artistic. In Romanian, “ASTRU” is defined as either a celestial body or an illustrious soul.

Here, it means both – a fusion of immense gravity with artistic subtlety.

A universe in the palm of your hand. A guide meant to illuminate your musical journey.