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Meze ASTRU - A Smooth, Warm, Polite Single Dynamic Driver That Never Steps Forward - Honest Audiophile Impressions

Writer: dbstechtalk
dbstechtalk
Aug 8
7 min read

Introduction


Hi folks, Dave the Honest Audiophile.


This is the Meze Astru, and these are my Honest Audiophile impressions.


The Meze Astru is Meze’s latest entry into the single dynamic driver category, positioned at $900 and clearly intended to sit alongside the Alba and Advar as part of Meze’s design‑forward, lifestyle‑leaning IEM lineup. Meze has always focused on premium build, comfort, and a smooth, easy‑listening tuning philosophy, and the Astru continues that tradition — but at a significantly higher price point than its siblings.


At $900, expectations change. A single DD at this price needs to deliver standout timbre, standout dynamics, standout staging, and a level of technical performance that justifies the cost. It needs to compete with neutral monitors, hybrid cinematic performers, and even dual‑dynamic designs. It needs to offer something special.


So the question is simple:

Does the Meze Astru earn its place at $900?

Before we get into the nuts and bolts of the Meze Astru, I want to thank Meze Audio for providing the Astru for review — much appreciated, especially considering that I’ve had the Astru in longer than anticipated. Meze Audio, you rock.


Specifications


  • Driver Type: Dynamic

  • Driver Size: 10 mm

  • Sensitivity: 111 dB SPL/mW at 1 kHz

  • Impedance: 32 Ω

  • Frequency Range: 5 Hz – 35 kHz

  • THD: <0.1% at 1 kHz

  • Connector: 2‑pin

  • Weight: 13.4 g


Box & Contents


The Meze Astru arrives in a greyish‑black box with minimal branding.

Sliding off the outer sleeve reveals a book‑style box with a top tray for the IEMs, cable, and documentation.


Beneath that sits a foam insert containing:

  • Meze hard‑shell carry case

  • Soft carry pouch

  • 5 sets of silicone tips (S/SM/M/ML/L)

  • 4.4mm‑to‑3.5mm adapter


Carry Case/Pouch

The carry case is classic Meze: compact, durable, and lined with soft velvet. It’s small enough for a bag or large pockets and offers good protection.

The pouch is nicely built but is small and doesn't serve a purpose.


Tips

I tested many tips, including foam and longer cylindrical designs. Foam tips degraded the sound significantly, making the Astru murky and bloated. Most long‑stem tips sounded hollow or overly warm. The grey stock silicone tips provided the best seal and comfort without altering the tuning, and were used for all impressions.


Cable

The included 2‑pin 4.4mm terminated cable feels premium enough for the price.

The standout feature is the splitter design, which uses horn‑like guides to keep the left and right leads separated. It’s one of the best anti‑tangle splitters I’ve used.

There is a small 4.4mm to 3.5mm adapter built in the same manner. All in all, the cables are good — not exceptional, but solid. I fond that they had good ear hook tension and didn't tangle.


Build, Comfort & Isolation

The Astru is unmistakably Meze. If you’ve used the Alba or Advar, the design language will be familiar:

  • Titanium shell

  • Small indented faceplate

  • Central pinhole vent

  • Smooth, stepped back

  • Very shallow nozzle

Fit & Comfort

The shallow nozzle is the biggest challenge. The Astru simply doesn’t sit deeply or the most securely in my ears. Foam tips were unusable due to sound degradation, and most third‑party tips altered the tuning negatively.

With the grey stock tips, I achieved the best seal — but comfort remained inconsistent. I found myself adjusting the fit every 10 minutes.


Isolation


Average at best. Roughly 50% of outside noise is muffled due to my fit and seal issues.


Source Pairing


The Astru is easy to drive. Sensitivity and impedance allow anything — dongles, DAPs, desktops — to get them loud effortlessly.

However, source synergy matters:

  • Neutral / analytical sources: best pairing; add air and energy

  • Warm sources: overly thick, overly warm, lacking sparkle and openness


Sound Impressions


The Meze Astru is a pleasant, smooth, warm, safe‑tuned single DD that never does anything wrong — but never does anything special.


Bass

  • Full but softened

  • Rounded attack, reduced definition

  • Lacks impact

  • Timpani and low brass lack physicality

  • Bass guitar lines present but not textured

  • More “comfortable warmth” than “accurate foundation”

Overall: Pleasant bass, but not competitive at $900; lacks DD authority and hybrid scale.


Midrange


  • Warm, smooth, padded

  • Upper‑mid presence softened

  • Vocals lack bite, clarity, emotional intensity

  • Brass and strings lose natural edge

  • Coherent but not expressive

  • Safe tuning reduces realism and dynamic contrast

Overall: Relaxed and pleasant, but too polite to be reference‑grade.


Treble


  • Brilliance dip reduces presence after 8k-13k

  • Upper‑treble after 13k lift creates floaty, cosmetic air

  • Controlled but lacks expressiveness

  • High strings and cymbals are softened for politeness

  • Lowers natural shimmer for safeness

  • Extension present but not integrated, safe and polite tuning

Overall: Safe treble tuning; non‑fatiguing but not overly accurate or revealing.


Stage Width


  • Moderate width

  • Smaller close to intimate depth

  • Lacks cinematic expansion

  • Feels like a small hall

Overall: Cohesive but not expressive; insufficient scale for the price.


Depth


  • Softened depth

  • Compressed front‑to‑back layering

  • Orchestral sections blend

  • Lacks dimensionality

Overall: Comfortable depth, but not realistic or reference‑level.


Layering


  • Layers blend on complex tracks

  • Complex passages lose clarity

  • Instruments occupy similar planes

  • Safe tuning reduces stratification

Overall:: Smooth but not technically strong


Imaging


  • Coherent but not precise

  • Soft localization

  • Instrument placement lacks stability

  • Not pin-point precision accuracy but close

Overall: Fine for casual listening, not for reference evaluation.


Detail Retrieval


  • Lower detail than all comparison units

  • Micro‑details softened

  • Quiet passages lose nuance

  • Upper‑mid smoothing hides some information

Overall: Adequate detail retrieval, not going to miss anything important


Resolution


  • Moderate resolution

  • Softened harmonics

  • Rounded transients

  • Competitors deliver more clarity

Overall: Pleasant but not resolving at higher level


Tone


  • Natural but warm‑colored

  • Lacks neutrality

  • Harmonics softened

  • Brass and strings lose realism

  • Woodwinds padded

Overall: Tonally pleasant, but not the most accurate.


Timbre


  • Natural‑ish but softened

  • Lacks DD bite and note density

  • Harmonics underdeveloped

  • Lacks lifelike reproduction

Overall: Good timbre for casual listening, not for reference work.


Comparisons


Tanchjim Origin — $250


  • More open and airy

  • More expressive

  • More natural tone and timbre

  • More bite and crispness

  • Better detail and resolution

  • Wider and deeper stage

  • More realistic dynamics


DUNU DN242 — $350


  • More neutral and natural

  • More impact, depth, layering

  • More separation and control

  • More air and openness

  • Better detail and resolution

  • More accurate timbre


ThieAudio Oracle MK3 — $590


  • More expressive

  • More impactful bass

  • Airier, more controlled mids and treble

  • Wider, deeper, more layered stage

  • More precise imaging

  • Better detail and resolution

  • More natural tone and timbre


UM Stardust — $800


  • More neutral and natural

  • More detailed and resolving

  • More impactful

  • Deeper, layered stage

  • More precise imaging

  • More expressive


Spirit Torino Twin Pulse Beryllium — $1,752


  • Far more powerful, textured, controlled bass

  • More dynamic slam, punch, emotional impact

  • More natural, spotlighted midrange

  • More extended, airy, crisp treble

  • Far wider, taller, deeper stage

  • Laser‑precise imaging

  • Superior depth and layering

  • More realistic timbre

  • Higher detail and resolution


Conclusion


The Meze Astru is not a bad IEM. It’s pleasant, smooth, warm, and easy to listen to. It never offends, never shouts, never bites, and never fatigues. It’s the kind of tuning that works for casual listening, background music, and long sessions where comfort and politeness matter more than accuracy or engagement.


But at $900, pleasant isn’t enough.


The Astru simply does not compete in its price class — and it struggles against sets that cost half, or even a third, of its asking price. The shallow nozzle makes fit inconsistent, isolation is average, and the safe tuning philosophy results in a presentation that is too padded, too polite, and too non‑committal to be considered reference‑grade or performance‑grade.


Across every category — bass, mids, treble, stage, depth, layering, imaging, detail, resolution, tone, timbre — the Astru is outperformed convincingly by:

  • Tanchjim Origin ($250)

  • DUNU DN242 ($350)

  • ThieAudio Oracle MK3 ($590)

  • UM Stardust ($800)

  • Spirit Torino Twin Pulse Beryllium ($1,752)

Each of these IEMs brings a clear identity, a clear purpose, and a clear level of technical performance. The Astru does not. It plays everything safe, and in doing so, it never steps forward and does anything special.


At $900, the Astru is a tough sell. There are many other options that offer tunings and technical performance that feel genuinely “special.”


If you enjoy Meze’s aesthetic, build quality, and relaxed tuning philosophy, the Astru may appeal to you as a luxury comfort‑tuned single DD. But if you’re looking for neutrality, naturalness, dynamic authority, technical performance, or reference accuracy, there are far better options at every price point.


The Meze Astru is smooth, warm, and polite — but it is not a competitive IEM. It’s a safe bet, not a standout.


I am Dave the Honest Audiophile. Thanks for reading, and I will catch you in the next one.


Don't forget to Stay grounded. Stay curious. Enjoy the music.

 And remember: Honesty is the Best Policy.


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🗣 About Me

I’m not a professional sound engineer, producer, or musician. I don’t do lab measurements or scientific testing. Everything I share comes from real‑world listening, personal comparisons, and a whole lot of reading and research.

I’ve volunteered as a sound tech in churches since my teens and have dabbled with recording, mixing, and mastering gear. These are simply my honest impressions — one audiophile’s perspective, shared with clarity and respect.


🛠 Quick Note About My Workflow

I write all my own impressions and evaluations. I use AI‑assisted editing tools only to help clean up wording and keep things clear, but every opinion and conclusion comes from my own listening and experience.


Stay grounded. Stay curious. Enjoy the music.

 And remember: Honesty is the Best Policy.


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