Moondrop Stellaris

General Information


Now available at HiFiGo:

>Newly-Developed 14.5mm Planar Magnetic Driver.
>High-precision miniature-grade Magnetic array.
>Sub-Nanometer Diaphragm.
>Exquisite Design with Iridescent Shells.
>Premium Softears Ultra-Clear Eartips.
>High-quality Mis-Tip Foam ear tips.
>Professional tuning following VDSF target response.
>Ergonomic and Comfortable.

Technical Specifications:-
>Impedance: 36Ω±15%.
>Sensitivity: 117dB.
>Frequency response: 10Hz-50kHz.
>Effective Frequency response: 20Hz-20kHz.
>Connectors: Standard 0.78mm 2-pin connectors.

Presenting the all-new Moondrop Stellaris, a high-performance Planar Magnetic Driver IEM that comes equipped with a 14.5mm planar magnetic driver enclosed in beautifully crafted iridescent ear shells. The pair follows the VDSF target response producing a powerful sound performance!! Experience unmatched performance with the Moondrop Stellaris delivering high-resolution clarity with Ultra-Low harmonic distortion in the output signal!!

Professionally Tuned Planar Magnetic Driver Configuration:-
Moondrop Stellaris features a 14.5mm powerful planar magnetic driver. Planar drivers are known for their special timbre and impressive performance with ultra-low distortion in the output signal. The planar driver here has been designed in collaboration with Tuoyin Electronics Co., Ltd, which is the first manufacturer of Planar drivers for IEMs in China. Moondrop and Tuoyin Electronics have worked closely to design the new 14.5mm planar driver with an ultra-thin diaphragm coil.

Specially Designed Acoustic Cavity Structure:-
In order to get the best out of the specially developed Planar Magnetic driver, Moondrop has designed an acoustic structure design. It allows for superior non-linear distortion performance and acoustic consistency with the planar driver. Stellaris packs a wonderful performance all thanks to the new Planar Driver and special Acoustic Cavity structure.

High-Precision Miniature Magnetic Array:-
Moondrop has equipped the Stellaris with a fully symmetrical magnetic circuit composed of 7+7 N52H magnetic. The magnets are precisely arrayed during the mold assembly. The driver produces a powerful magnetic flux close to 1 Tesla. It helps the pair to achieve a clean performance with a swift movement of the diaphragm coil.

Sub-Nanometer Diaphragm:-
Stellaris adopts a sub-nanometer ultra-thin diaphragm for its planar magnetic driver. The thickness of the diaphragm is as low as 1um, it has been stretched tightly on the bracket with uniform tension all across the diaphragm. The high-precision ultra-thin, uniformly stressed diaphragm structure is capable of delivering lower split vibrations and produces a clear sound performance with rich details.


Exquisitely Finished Iridescent Shells:-
Moondrop Stellaris shares its design traits with the “Starfield”, another one of the highly-acclaimed IEMs from Moondrop. The shell adopts an iridescent color theme that glows into different colors based on the varying light angles. Moondrop has treated the pair with a golden hand-painted pattern which is emblematic of the Starry theme of Stellaris!!

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Latest reviews


100+ Head-Fier
Moondrop Stellaris : Planar to the Moon!
Pros: + Good Build
+ Looks great
+ Good resolution
+ Good staging & Imaging
+ Good Ear-tips
+ Good usable case
+ Great pairing with most dongles and portable players
Cons: - Should've come with 4.4mm balanced connectors by default
- Bass lacking body
- Peaks in the Treble felt quite piercing
- Shells are quite heavy considering longer listening sessions
- Fit can be issue for some people (rare case though)
Moondrop Stellaris : Planar to the Moon!



Launched in Sep'2022, Moondrop Stellaris is the 1st Planar IEM by Mondrop. Stellaris comes with a 14.5mm Planar Driver and is a great looking IEM.
The review unit was sent to me by @shenzhenaudio - but everything written below are based on my own thoughts and experiences with the IEM.




Let's quickly dive into the details without making the introduction very lengthy. The Stellaris is a Planar IEM with with 14.5mm planar Driver, and Moondrop proprietary UC silicon ear tips and other accessories.

The Stellaris is priced at $93.49 (Black Friday Deal).


Design & Build:

The shells look great but are quite heavy also. the nozzle is quite long for deeper insertion. The fit is quite comfortable but not ideal for log hours of music listening really.
From the website:




The Moondrop Stellaris comes at $93.49 (Black Friday Deal) price tag and the specifications are as below:



The Box & Accessories:






Items Used for this Review:

DAC/AMP & Dongles:
@Questyle M15 Dongle DAC/AMP, Cayin C9 Amplifier
Portable Players / Sources : @Questyle QP2R, Cayin N8ii, Lotoo Paw Gold Touch, A&K SP1000M
Streaming Source: QOBUZ


Ear Tips:


I've tried tip-rolling with a variety of tips such as: the default Softears silicon tips, JVC Spiral dots, Spiral Dots+, @SpinFit Eartip CP500, CP155. Out of all of these I have found the Softears eartips that came with the package to be the best fit for my ears in terms of overall fit, isolation & comfort.


Tracks Used:
The tracks I have used can be found from the below playlist that I have used and generally use for most reviews...


Pairing Performance with different sources:

Dongle DAC/AMPs:

Stellaris had the good pairing with @Questyle M15.
However, it is recommended to use with warmer sources to avoid the treble peaks.


Portable Players:

Obviously the Stellaris had the best pairing with the LPGT & specially Cayin N8ii since that comes with Class-A amplification and a new DAC which is super resolving and not to forget the Nutubes! But those are $3500+ range also and out of reach for most people!
But it performs well with A&K SP1000M.


MOONDROP STELLARIS Sound Impressions in Short:


The Bass seemed quite lean though there were some details coming from the sub-bass and the mid-bass had some kick. But the bass seemed kind of dull being lean. In tracks like: "Fools Paradise (LP Version) – Donna Lewis" and "Chocolate Chip Trip - Tool" you can feel the bass lacking texture and layers.


The midrange is amongst the stronger traits of the Stellaris and it comes with ample clarity and openness. There is good amount of muscle and texture and the instruments sound very lively and enjoyable. Vocals are very immersive and both male and female vocals come with ample texture but lacks in the details a bit. Transients are good for a planar. In tracks like: "Anchor - Trace Bundy", "A dog named Freedom – Kinky Friedman" and "Ruby Tuesday – Franco Battiato" you can find enjoyable vocal performances while there is some lack in the details.


The treble is where it becomes quite peaky and offensive. I have found peaks which seemed quite piercing in a lot of tracks.
You will clearly feel in tracks that have cymbals.


The Staging capabilities of the Stellaris is the quite good and above average for $100 price range. It comes with the right amount of width, height, depth and is well defined and just as much as the track requires. Tracks like: “The Secret Drawer – Bela Fleck and the Flecktones” or “She Don’t know – Melody Gardot” or “Bohemian Rhapsody (live aid) – Queen” sound amazing & enjoyable. This is amongst the strongest trait of this IEM.

Separation & Imaging:

When it comes to separation, the Stellaris is performs is an average performer. However, Imaging is quite spot on and location of each instrument can be felt quite clearly. Tracks like: “Rotterdam (Or Anywhere) - The Beautiful South “or “Hello Again - Howard Carpendale & The Royal Philharmonic Orchestra” just shine through.



It comes in similar range of the 7hz Dioko which is also a planar IEM. Hence, it makes a good comparison.


Stellaris vs Dioko:

Owing to the much more detailed bass performance of the Dioko, it gets the preference as the as the Stellaris bass is quite lean.

Mids: The midrange of the Stellaris is as good as any and at times seemed slightly more textured than Dioko.

Treble: This is where the Stellaris loses ground to the Dioko. The Dioko doesn't have those peaks that are prominent in the Stellaris.

Soundstage, Imaging and Separation: The staging on the Stellaris is quite wide and much above average. The Dioko also has good staging and its likely a tie in this department.



The Moondrop Stellaris being the 1st planar by Moondrop has come a long way. It looks great and feels great in the hand.
It maybe a good choice for people who are not treble sensitive.
real question : how do u fit the stellaris to its case? if i roll the cable on my hand and place the stellaris in between the rolled cable, the stellaris nozzle is just simply too long to fit in the case, as u can see on my review below
Case is small, yep
@littlenezt @Sharppain Yes... case is smaller.... I generally place the IEMs/Shells horizontally to make them fit into the case. Even then it's quite a tight fit.... but the lid closes.


100+ Head-Fier
not your typical Moondrop
Pros: +technical capabilities
Cons: -fitting might be challenging
-insertion depth dependant
-tip dependant
-not your typical Moondrop "Allrounder" Sound
Hi there head-fi forum, been long time not doing any review both in my YouTube and this forum,
before starting the review, this review is NOT in any way sponsored (i bought this set myself) and is clearly my subjective opinion,
also please forgive my broken english

inside the box :
  • your typical Moondrop pouch that you can't really use with STELLARIS (see picture below)
  • cable that looks exactly like SSR & SSP & Aria SE cable BUT now with cable slider and Stellaris color themed
  • MIS-TIP T41 (SML)
  • Moondrop Waifu POSTCARD, Guide, QC Card, Warranty Card, etc etc

nozzle too long for pouch bruh

lets start with the IEM / shell build quality, the shell is painted and the finish on my unit is great, it has the same finish as Starfield, the IEM itself also pretty heavy and feels really well made,
for the cable, i cant say much about it, it works, looks pretty, but thin like noodle

the IEM is pretty much sits on my concha and touch a bit the outer side of my earlobe (tragus?) as well, to be honest, the weight of STELLARIS is not really fatiguing on my earlobe.
fitting itself is not that bad and i can get decent seal, but how it affects this set sounds thats the part that makes it challenging (more on this later below)


the STELLARIS is tested using my trusty E1DA 9038D, Audient ID4 MKii Interface and Moondrop Dawn 3,5 Edition
using Apple Music Lossless files, i listen mostly (J-POP, Anisong, Jazz, Rap&Hip-Hop, also a bit of Metal)
using A LOT of eartips brand and size

first off, let me say, the STELLARIS DIDN'T SOUND like your typical Moondrop IEMs with their VDSF target curved (Harmann-ish tuning)
for sound in general, on my ears with the right tip and insertion depth, the STELLARIS sounds more like a W shape with pronounced SUB Bass, Forward Upper MIDS and Forward Treble

bass here is focused on the sub bass region, it has great rumble that you can feel, the mid bass here is not that pronounced, also the bass is kinda THICK and PUNCHY but speedy in a way that is only planar can produce, definitely NOT for BASSHEAD the bass separation is also very good

my subjective opinion is that i REALLY like the bass presentation on STELLARIS, its not too much but it has A LOT of definition and you can FEEL the definition of the bass like hi res bass?

for example :
Mei Ehara - Day to Night
it has repetitive badadudududud bass guitar, with badumbadum kick drum from start to end of the song *pardon my poor sound imitation LOL
with STELLARIS you can clearly discern the sound of bass guitar and kick drum without sounding muddled up together and you can still feel the vibration of the bass guitar strings

2Pac - Hit 'Em Up
the bass quantity is not really that big like just say beats by dre *DUH !!
but it has good punch , the bass itself is still boosted you can hear a lot of vibration and feel the definition with the STELLARIS

Trivium - Throes of Perdition:
the bass speed is speedy enough for this songs, you can hear each drum note hits.

Mids has weird peak around 2.5k region, it makes vocal sounds forward and intimate, BUT on some vocalist it makes it sounds "NASSALY" like they have flu or their nose is clogged while singing.
it also makes some instruments like trumpet or guitar / violin intense / forward.

note weight on the mids itself is a bit THIN sounding and on the colder /analytical side.

mids also has very good definition on STELLARIS.
lets just say you can clearly hear the definition of violin and breaths of vocalist

example :
Trivium - Throes of Perdition
because of the peaks on the 2.5k, guitar have weird ringing sound

EVE - Shinkai
if you want to hear Eve singing with his nose clogged, use the STELLARIS, lol

vocal itself is really dependant on correct tip and insertion depth, with UC tips and Spring Tips, no matter size SML tips i use and how deep i insert the iem, vocal will sounds very sibilant and harsh,

with mis-tip S size, Acoustune AET08 L Size, and Final Type E L Size, the sibilant on vocal is nowhere to heard, but if i use smaller size tips lets say generic eartips from Moondrop Starfield and aiming for super deep insertion, it can makes the vocal also sounds harsh and have a lot of sibilant, if i use large and aim for shallow insertion, it also has weird harshness and metalic sounding on the vocal.
you definitely need to experiment a lot with eartips and insertion depth combination with this IEM.

for me the STELLARIS sounds best using Final Type E L Size, Acoustune AET08 L Size, and Moondrop Mis Tip S Size.

why insertion depth matters you may ask?
it affect the placement of treble peaks and thus have corellation with mids and overall timbral of an iem. use google for more detail on this topic.
why did i know this you may ask? its because i used to be FR consultant help tuning for some local "d-bag" IEM makers

Treble :
STELLARIS has a LOT of TREBLE peaks and it sounds BRIGHT.

the Treble on STELLARIS is pretty forward and not shy to say hi to your ears, it also has a LOT of definition and micro details, the treble decay is a bit on the faster side, a bit dry sounding and might be tiring to hear for some people,

STELLARIS on the treble region itself is not that harsh, but the peak on treble affect the overall timbre of this IEM, like i explained earlier, the treble peaks affecting the vocal etc etc,
Detail Retrieval: SPECTACULAR, just... WOW it can extract A LOT of micro details, probably detail retrieval alone it can easily beats iems twice or even more of how much the STELLARIS cost

STAGE: STELLARIS has a moderate width and depth simetrical soundstage (headstage) also decent verticality for playing games (tested on Apex & Valorant)
to me Stellaris staging is like empty space and not having exact wall (if you know what i mean)

Positioning : tested on Apex Legends & Valorant, i can easily locate where all the foot steps without any problem.

Imaging & Separation: separation on this set also pretty good, it didn't have any problem on any songs i throw at it, no matter how complex the songs, regardless of any genre.
for imaging, atleast on my ears, the STELLARIS sounds a bit like 2,5D ? dont get me wrong, its good, really good, but it lacks some depths to it.

this set is kinda power hungry for an IEM, definitely loves power and paired well with warmer source

yes it has that "planar timbre" because this set is planar (obviously?)

Do i Recommend this IEM? / TLDR ;

if you want the most details and technicalities iems on a tight budget that can also easily beats probably iem cost 2x or even more than this set priced
YES if you already have your allrounder iem and want something different and willing to experiment with A LOT of eartips and insertion depths

NO if you want an allrounder IEM for daily driver
NO if you dislike forward treble
NO if you prefer warmer set and musicality

BONUS EQ just in case you've already purchase this set and didn't like how it sounds
last resort.jpg
*just in case you still didn't like it, feel free to EQ your IEM however you like, or mod using mesh filter or sell it, i did this eq like in 5 minutes lol

i guess that's all for now, if i remember something else i probably will edit this post later.
also if i have some times i will make video on this set on my YouTube as well (Bahasa Indonesia).

thanks for reading, i hope you can understand my broken English.
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Great review!
For a month, already, I am puzzled by the 'grande' reviewers trying to kill the Stellaris since it is that technical and practically reshapes the industry pricing. Stellaris has enormous potential. Just the fit is a trouble but if you get it right - you are praised with great performance. I use foam stock tips and very deep insertion, deep that all the nozzle is in - than I have all the subbass + enough midbass, vocals are fully ok (not thin and shouty) and highs are not sharp, find the timber convincing.
And if anybody finds the vocals shouty and the highs still too much - solution: Short Bus Olina mod with one mesh on top of the nozzle!
I think you should explain a bit more (having in mind you consultant experience) about the fit of this iem.


100+ Head-Fier
Moondrop Stellaris Review 🌠 - SSR Fanservice!
Pros: - Highly detailed and technical
- Well extended bass with good sub-bass presence
- Lean and transparent midrange
- Clear forward vocals
- Revealing and detailed treble response
- Very good texture
- Very good instrument separation
Cons: - Niche tuning/Lacks tonal balance
- Timbre is thin and unnatural
- Treble is cold and shrill
- Shouty vocals
- Sounds fatiguing with bass-lite songs
(total 3 - 5 mins read)

Moondrop Stellaris is Moondrop's answer to the never-ending Planar IEM war that has been going on for 1-2 years now. With so many IEMs to choose from now, especially in the $100usd~ price range, can Moondrop separate themselves from the crowd with their $100usd Planar magnetic driver IEM, the Moondrop Stellaris?



Unboxing the Moondrop Stellaris is a very pleasant experience. Just like most Moondrop products, the presentation is spot on. Beautiful anime drawing in front, specs + details + FR measurement at the back, and upon opening the box, you are presented with a beautiful carrying case, 3 sets of UC silicone eartips, 3 sets of foam tips, a 2pin 3.5mm cable, some documentations and last but not least, the Moondrop Stellaris itself.



In terms of fit, I have faced quite a bit of fit issues with the Stellaris, especially with the stock UC silicone eartips. I have documented and wrote about the fit issues I've faced with the Stellaris in my 1st & 2nd Impression posts. You can check them out here and here. Feel free to check those out if you are interested.

TLDR; In order to get a good fit, I have to resort to the Spinfit cp-360 eartips, shove them deeper into the ears, and cut off the earhooks on the cable to get them to fit well. Once I've done that, fit is great and haven't been an issue for me since.

After changing to Spinfit cp360 eartips, comfort is good too. However, I do wish that they are on the lighter side though, as you do feel the weight of the IEMs in your ears after a few hours of use—especially with a bad fit.



In terms of build, Moondrop nails it right on the head with their Stellaris. With a Stardust/Starfield-like shell design and matching blue-accented cable, the Moondrop Stellaris just looks great.




In terms of sound signature, I would describe the Stellaris as "bright V-shaped", with most of the emphasis being on sub-bass, the upper mid region, and treble. If you are familiar with how the Moondrop SSR sounds, the Moondrop Stellaris is literally "SSR on steroids". Imagine SSR, but with more sub-bass and treble.

Amplification is recommended to get the most out of the Moondrop Stellaris.

Bass - Bass on the Stellaris is quite well-extended down to the sub-bass region. Mid-bass is on the leaner side so the star of the show here is definitely the sub-bass. The bass texture of the Stellaris is really good. Instead of the meaty, thick, punchy bass of the KBEar Ormosia I reviewed last (link here), the bass here is textured, tight, fast, and clean. Listening to modern Electro/Pop/EDM songs that are generally sub-bass focused really brings the best out of the Stellaris' bass.

However, listening to songs that aren't sub-bass heavy, the lack of mid-bass really do show as it makes the midrange & treble sound bright, thin, and shrilly. I think a bit more mid-bass would balance the tonality of the Stellaris a bit more, but that's just my opinion.

Midrange - I would describe the Midrange here to be thin, lean, and clean. Midrange resolution on the Stellaris is really good. It has really good microdetail retrieval and it is able to pick up a lot of tiny nuances in most tracks. In terms of vocal presentation, just like the Moondrop SSR, vocals here are unquestionably forward. With a 13dB pinna gain, vocals are almost always presented forward. If you are sensitive to shout, this can come off as shouty and that might throw you off.

Treble - Treble here is sparkly, revealing and bright. I actually quite like the treble here myself thanks to how detailed it sounds. It gives the treble a bit of "characteristic" instead of the typical "Harman smooth" rolled-off treble response. With genres like Jazz, Classical, Blues, the treble here really shines.

However, the treble here can also come off as shrilly and hot, especially with poorly mastered tracks. This will make the treble harsh and fatiguing to listen to.

Timbre - Timbre here is thin and unnatural. Instrument sounds metallic and thin. Vocals sound screechy and unnatural.

Soundstage - Soundstage is slightly out of your head. Not too wide, not to narrow. It is more wide than deep/tall. Slightly 2D

Imaging - Imaging here is accurate and pretty typical for a Planar. Just like most planars, I find the imaging here to be "unnatural". What I mean by that is that the imaging lacks the "natural 3D holographic imaging" that some 1DD IEM is able to achieve at this price. Not only that, the imaging is also slightly bottlenecked by the soundstage, as the imaging here is mostly "inside your head".


I named the title of this review as "Moondrop SSR fanservice", and that isn't without reason. The Moondrop Stellaris is literally that—a polarizing and niche tuning for the select few that like it. As a Moondrop SSR fan myself, I can appreciate what Moondrop has done with the Stellaris.

With the amount of "Harman tuned" IEMs coming out these days, I am truly refreshed and happy to see Moondrop taking a risk and going against the norm with the Moondrop Stellaris.

If you are looking for a safely tuned, "Jack of all trades" IEM, best look elsewhere as the Moondrop Stellaris is definitely not for you. However, if you are:
  1. looking for a highly detailed and technical IEM,
  2. a fan of the Moondrop SSR,
  3. want something that sounds different,
  4. and is sick of the current oversaturation of "Harman tuned" IEMs out now,

do give Moondrop Stellaris a try!

Thank you HiFiGo for loaning me the Moondrop Stellaris for review purposes.

Interested in getting the Tronsmart Onyx Pure? Here is the purchase link (non-affiliated):
Link to Moondrop Stellaris -
Link to Spinfit cp-360 -



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New Head-Fier
My gut tells me this is going to be a huge disappointment tho I could obviously be wrong.
Timmy from Gizaudio thought it was questionable. But some people that went to the canjam thought it was fine. I think it's really down to people's preferences. But, looking at the frequency graph, it seems quite intense for me personally.


100+ Head-Fier
I don`t like tuning sponge in the nozzle. It affects the sound timbre in a bad way. Moondrop has already used it on the Aria SE and I think it is not a good dumping material for more expensive earphone models, over $20 or $30 imo.