Meze Audio ASTRU Wired In-Ear Headphones

The Meze Audio ASTRU is more than an in-ear monitor - it is a statement piece: full-titanium, visceral sound, single dynamic. Simplicity raised to the highest level of performance. It delivers a punchy, full-bodied, and rich, detailed sound – combining the layering and imaging associated with multi-driver IEMs with the tonal density and natural warmth dynamic drivers provide, all within a cohesive, unified presentation.

UNIQUE TO THE CORE

ASTRU is powered by a high-performance single dynamic driver featuring a multilayer metal-coated composite diaphragm, engineered for exceptional control and refinement. The diaphragm dome consists of an outer gold coating applied in 80 ultra-thin layers via physical vacuum DC magnetron sputtering over a 48-hour process, followed by a titanium layer bonded to a PEEK dome base. This multi-stage architecture delivers smoother high frequencies, greater extension, and more natural transient response. The rear vent equalizes pressure between the driver's back cavity and the exterior, allowing unrestricted low-frequency driver excursion for extended sub-bass and bass output (below 200 Hz), while continuously relieving ear canal pressure for fatigue-free, long-term listening.

PURE TITANIUM SHELL

Lightweight yet exceptionally strong, the IEM housing is intricately CNC-machined from a single block of pure titanium into a one-piece construction, then refined through a multi-stage electroplating process to achieve a smooth satin finish that enhances wearing comfort. One matched pair of shells requires up to 7 days of processing.

ETHEREAL COMFORT

Building on the ergonomic foundations set by the ADVAR and the ALBA, ASTRU maps to the natural contours of your ear with unprecedented precision - no pressure, no hotspots, only you and the music. The shell geometry has been refined even further: every curve finished to perfection, every surface optimized for the kind of long-term comfort that makes the shell disappear from awareness.

HIGH-QUALITY CABLE AND MORE

The included 1.2 m (3.9 ft) cable features silver-plated Linear Crystal Oxygen-Free Copper (LC-OFC) conductors arranged in a dual-strand configuration, with 161 individual conductors per strand. Insulated in SoftFlex PVC for enhanced comfort and flexibility, the cable incorporates CNC-anodized aluminum housings and a gold-plated 4.4 mm balanced termination. The construction is optimized for low resistance, signal integrity, long-term durability, and seamless compatibility with high-end portable sources. The package also includes a female 4.4 mm to male 3.5 mm adapter, enabling compatibility with a wide range of DAPs and headphone amplifiers. To fully experience the intended sound tuning, detail, and bass response, achieving a proper seal is essential. ASTRU includes five pairs of custom-made liquid silicone ear tips, engineered specifically to match its acoustic design. Using alternative ear tips may alter the sound signature and affect the intended tuning. Available in XS, S, M, L, and XL sizes. Precisely etched from nickel and then electroplated to complement the titanium nozzle, the wax guard protects the acoustic filter from clogging, helping extend its lifespan. Functional, durable, and unmistakably Meze, it is a subtle detail that quietly safeguards every listening session. To suit different moments in your journey, ASTRU arrives with two pouches: a sturdy pouch for secure storage and travel, and a softer PU leather envelope for a lighter, everyday carry.

MEZE AUDIO ASTRU FEATURES:

• Premium single dynamic driver in-ear monitors (IEMs)
• Full-titanium construction with one-piece CNC-machined housings
• Rich, full-bodied sound with natural warmth and exceptional detail
• Cohesive single-driver presentation with multi-driver-style imaging and layering
• High-performance dynamic driver with multilayer metal-coated composite diaphragm
• Gold-coated diaphragm created with 80 ultra-thin layers using DC magnetron sputtering
• Titanium-coated PEEK diaphragm for improved rigidity and transient response
• Smooth, extended treble with refined high-frequency detail
• Deep, controlled bass with extended sub-bass performance
• Rear pressure-relief vent for improved bass excursion and reduced ear fatigue
• Pressure-equalizing design for enhanced long-term listening comfort
• Lightweight pure titanium shells with satin electroplated finish
• Up to seven days of precision machining and finishing per matched shell pair
• Ergonomic shell design optimized for a secure, pressure-free fit
• Refined shape based on the Meze ADVAR and ALBA for exceptional wearing comfort
• Premium 1.2 m silver-plated Linear Crystal Oxygen-Free Copper (LC-OFC) cable
• Dual-strand cable with 161 conductors per strand for high signal integrity
• SoftFlex PVC cable insulation for flexibility and comfort
• CNC-anodized aluminum connectors for durability
• Gold-plated 4.4 mm balanced termination
• Includes 4.4 mm balanced to 3.5 mm adapter for broad device compatibility
• Five pairs of custom liquid silicone ear tips (XS, S, M, L, XL)
• Ear tips specifically engineered to preserve the intended acoustic tuning
• Precision nickel wax guards help protect the acoustic filter and extend longevity
• Includes both a protective travel pouch and a compact PU leather carrying pouch
• Designed for high-end portable audio players, headphone amplifiers, and balanced audio systems
• Combines luxurious craftsmanship, premium materials, and reference-quality single dynamic driver performance