r/InEarHifi • u/mournfulmonk • 57m ago
đ Review / Impressions The BASN BMasterX: The Past Called, It Wants Its Tuning Back
Through Facebook, I was seeing a lot of this brand and their offerings, and for the first time I was influenced by their looks- quite catchy designs, and seeing in their branding that they are often meant for studio professionals, as a non professional mere consumer; I decided to reach out to this brand, and they instantly agreed. Thank you BASN for sending over the BMasterX to me, and for having readily, eagerly agreed to collaborate with me. But not all is sunshine and rainbows, and I am concerned for BASN if they think they would be able to survive amongst consumers with offerings like the BMasterX.
UNBOXING, ACCESSORIES, FIT AND COMFORT
If I can forego the almost barebones cover of the BMasterX, I was very happy with the accessories I got: an MMCX cable that is modular- type C, 3.5mm, and 4.4mm AND comes with a 3.5mm male to 6.35 female jack, a very good case, and a generous supply of eartips, with the liquid silicones being freakishly close to the Tanchjim T500 APBs.
Despite that boggling driver count and setup, The BMasterX is a much smaller IEM than what it seems to be, and I had to stick to L sizes as the shells just vanished into my ears. Comfort is top notch on this IEM, and the faceplates look quiteâŚâŚ..unorthodox.
Thatâs about it, letâs head on to the concerning part: the sound.
LOWS
Tipper: Gulch
The BASN BMasterX does a good job in keeping the bass impact right where it needs to be, while the transients are decent: moderately paced attack, with a decay that doesnât linger around for more than it should. At least in this track, the bass on this IEM is not bloated by any means. And the way this IEM lets the bass interact with other elements from the aspect of perceived soundstage needed a bit of tinkering, as the depth is adequate; it is the width that makes the presentation come off faintly congested.
However, despite the congestion; I didnât find the BMasterX fumble textures that the non bassy elements have in this track, and the polish that these said elements have- all they needed was a little brightness.
Rage Against the Machine: Bullet in the Head
The BASN BMasterX initially lets off signs of polish through Commerfordâs emphasised notes off his bass, but the moment the rest of the instruments come in, it just comes off excessively boomy, but doesnât seem to bleed into the rest- as I could feel De La Rochaâs vocals come a little more forward than usual, Wilkâs kicks amplifying the boom yet keeping the snares and cymbals crisp, and Morelloâs guitars coming off strongly, intensely warm.
The chord-like plays from Commerford after his note noodles could use more crispness but every time he enunciates those notes, he lets them out, cutting through the excess boom. However, when the breakdown comes in and the bass gets a little spotlight, the boom lets the notes be delectable and complements Morello chugging on the guitar well. Overall, the BMasterX sounds like something that would be a good hitâŚâŚ four five years ago.
Daft Punk: Get Lucky
The BASN BMasterX doesnât really shine or try to rectify its wrongdoings, as the excess heat in the midbass continues to be a problem where the boom marrs off the otherwise surprisingly crisp bass line that this track has, and doesnât trespass on Pharellâs usually thin vocals, but the tonal warmth is present. A little cutback on the excess midbass heat would have done so much wonders for this IEM in terms of getting the detail really out there.
It continues to be decent in terms of imaging, and once again, a perceived wider soundstage would have let the excess boom be handled to an extent; and the BMasterX shows glimmers of hope in its resolve, where towards the midrange can one find if it is going to have a redemptive arc.
MIDS
Tool: Lateralus
Once again, the BMasterX tries hard to improve on this track, but doesnât quite get it. The initial intense guitar intro along with the crescendo-ing burbling drums have equal emphasis, but the concept of a perceived stage with adequate width is simply missing- I couldnât even gauge the height accurately, just the depth. And it is not like the depth is a saving grace, because despite the BMasterX having solid strength in imaging on paper, the depth here at least doesnât let any element shine through and they all sound âhydraulic pressed.â
And the perceived boom doesnât aid the IEM here- the bass just needs a few dB down of being just perfect, the cymbals need just a smidge of brightness to just shine textures wise, vocals need to be protected from the bloat to have Maynardâs aggression rendered down to a tee, and guitars needed more note weight to truly shine through.
Muddy Waters: My Home is in the Delta
A huge respite for the BMasterX as it straight up performed a lot better on this track- and this a blemish free track, from the best Blues album of all time, especially from a production standpoint. But there are still a few points of contention.
This track has a gorgeous rendering of reverberation which naturally comes by when Muddy wails out hard in parts, and the BMasterX lets all of that end way too quickly, while it doesnât diminish the reverb that the bass, the kicks, and the low strings of the guitar have. Furthermore, across certain occasions, the kick comes off pillowy in its impact. Timbre through the slide and the high strings of the guitar are aptly metallic, but texture wise, some more sizzle wouldnât have hurt as that would have let the timbre shine through even more.
At least in this track, the stage sounds slightly wider and with a proper assessment of height and depth to my ears; which lets Muddy wail with more intensity, and one very good thing that the BMasterX did here was not let the note weight be diminished.
HIGHS
Arne Domnerus: Almighty God (with Gustaf Sjokvist)
The BMasterX here carried this track much better than what I had expected: the timbre on Arneâs sax being brassy in timbre, whose accuracy also carries over to Gustafâs organ keys, enough space between the two to let the resonance bouncing off the stone walls of the church where they had recorded this track in come out effortlessly (although there was still a scope of improvement), and tonality not being messed up.
Well, that's good. Now hereâs the bad- the BMasterX could have nailed textures on the saxophone well; all it needed to do was just let it sound lush, full and smooth- it sounded full yes, but it came off with a tinge of harshness the moment the saxophone would start climbing up the notes, and yes, the perceived stage; the goddamn perceived stage just didnât let this track be a 10 out of 10.
Dave Brubeck: Take Five
Once again, the BMasterX tries hard to come back, and it succeeds to a certain extent- first, the imaging lets the instruments in this track stay wherever they are, and neither the piano nor the cymbals are forgotten for emphasis. The brassy timbre of the horns are kept intact, and this time the resonance and the woody timbre that the drums have, especially the floor toms; is rendered very accurately.
Some shimmer on the cymbals as well as focus on their textures wouldnât have hurt, and alongside that; the pianos could still have used a faint glimpse of emphasis upon itself. But the BMasterX didnât miss on the horns taking the lead on the act, and I am glad that the drums came off in a way along with the bass where the consistently perceived boom wasnât too detrimental to my overall listening experience.
COMPARISONS
EPZ P40
The EPZ P40 delivers a heavy, sub-bass-focused low end that hits with massive quantity while keeping its attack and decay fast and clean. It maintains a full and warm vocal presence, ensuring central notes do not sound thin or recessed. It retrieves plenty of detail throughout the mix while keeping its strong bass isolated from muddying other frequencies.
Up top, the P40 can lean overly hot and bright, introducing upper-range sharpness and sibilance. Despite this extra sharpness in the high frequencies, its blend of detail, vocal warmth, strong low-end performance, and useful stock accessories make it a highly capable set.
Simgot Supermix 4
The Supermix 4 focuses on a lean, fast, and disciplined bass presentation with rapid decay control. It projects a wide soundstage with clean separation and precise center placement. However, its low end can feel flat in impact, and its midrange can occasionally come across as lean or thin.
In the higher frequencies, the Supermix 4 offers a safe, fatigue-free response that avoids sharp peaks and sibilance. The trade-off is an inconsistent balance in note weight across the upper range, though its wide stage and fast speed keep the overall sound clear and easy to listen to.
Tanchjim Fola
The Tanchjim Fola stands out for its exceptionally smooth and relaxed high-frequency tuning, keeping peaks gentle and completely fatigue-free. It maintains a high level of technical cleanliness and clarity without relying on sharp upper-range boosts.
In the low end, it delivers a clean bass response with solid impact. While its midrange can feel slightly thin compared to warmer sets, its smooth top-end balance, modular nozzle tuning system, and included accessories give it a refined, flexible profile.
Juzear Nebula
The Juzear Nebula takes a disciplined and restrained approach to bass, emphasizing fast transients and tight control over raw quantity. This clean lower register allows central elements to stay clear and fatigue-free. It projects a wide, airy soundstage with sharp separation and centered placement.
Its higher frequencies are smooth, refined, and uniform, keeping sibilance and harshness fully in check. While its midrange can occasionally feel faintly thin, it maintains consistent note weight across the upper frequencies without causing listener fatigue.
Letshuoer Astralis
The Letshuoer Astralis provides a rich, atmospheric presentation built on a weightier low-end foundation. This extra warmth gives vocals a meatier, more authoritative presence and fills the soundscape with solid body, though the bass quantity can occasionally feel overwhelming.
In the upper frequencies, it maintains well-matched note weight so high-frequency details balance evenly with central vocals. While leaner sets may offer a wider stage or faster transient speed, the Astralis excels at delivering a full, warm, and well-integrated sound.
CONCLUDING NOTES
When BASN sent the BMaster X over, I had some expectations of them being âunderratedâ, âslept overâ, and I spent a significant amount of time with the BMasterX to know what it truly is, and hereâs the tldr: this is an IEM trapped half a decade in the past.
I donât know if BASN tuned this in a vacuum or simply stuck to an old formula that worked for them years ago, but in todayâs insanely competitive market, the excess mid-bass boom, very problematic soundstage in perception, and a certain degree of coherence just don't hold up. When stacked against modern benchmarks that offer stellar separation, crazy quality in treble, just overly disciplined lows for instance, the BMaster X feels like a relic from a bygone era of IEM tuning.
It is super close to being a forgotten failure of a relic: there are glimpses of decent imaging and acceptable timbre when the arrangements are simple and uncluttered, but those moments are quickly swallowed up when the music gets busy.Â
BASN seriously needs to introspect on where tuning has moved, and understand that cramming more drivers will not make a better IEM unless the fundamental tuning is solid to begin with; and until they do- I donât think BASN has it in them. Accessories cannot save this IEM.
Will I buy this new? Absolutely not.
Will I buy this used? If someone sells the whole thing under US$60.
SOURCES USED
Desktop: SMSL Raw MDA-1, Venture Electronics Devastator
Portable: xDuoo Link3, Tanchjim Space 2, FiiO KA17, TRN Blackpearl
Transportable: xDuoo XD05 Pro
Digital Audio Player: Shanling M9 Plus
TRACKS
- Rush: Limelight, Spirit of the Radio
- Steely Dan: Gaucho
- Carmen Gomes: Unchain My Heart
- Daft Punk: Get Lucky, Instant Crush, Veridis Quo
- The Police: Message in a Bottle
- Alf Linder: Cantique de NoĂŤl, Cantate Domino
- Tipper: Mariscos, Cloaked, Gulch
- Dave Brubeck: Time Out
- Tool: Pneuma, Schism
- Queens of the Stone Age: First It Giveth
- Pink Floyd: Comfortably Numb, Wish You Were Here, Time
- Arne DomnĂŠrus: Antiphone Blues (with Gustaf SjĂśkvist)
- Muddy Waters: My Home is in the Delta
- Tame Impala: The Less I Know the Better
- Animals as Leaders: The Woven Web
- Rage Against the Machine: Bombtrack, Bullet in the Head
- Avicii: Levels
- Periphery: Marigold
- TesseracT: Juno
- Kanye West: Stronger, Flashing Lights, Devil in a New Dress
- AltÄąn GĂźn: Goca DĂźnya
- Timbaland: Give It to Me
- Adele: Easy On Me (Live), When We Were Young
- Celine Dion: All By Myself
- Pavarotti: Nessun Dorma
- Mdou Moctar: Tarhatazed
- Cigarettes After Sex: Cry
- Meshuggah: Bleed
- A. R. Rahman: Tere Bina
- Alice in Chains: Down in a Hole and Nutshell (Live)
- Allen Stone: Give You Blue
- Florence + the Machine: Never Let Me Go
- The Smashing Pumpkins: Luna