Subtonic STORM VS Thieaudio Monarch MK3

IEM Comparison: Expert & Community Scores Side-by-Side

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Subtonic STORM and Thieaudio Monarch MK3 use 5BA+2EST+2SLAM and 2DD+6BA+2EST driver setups respectively. Subtonic STORM costs $5,200 while Thieaudio Monarch MK3 costs $1,000. Subtonic STORM is $4,200 more expensive. Subtonic STORM holds a clear 0.9-point edge in reviewer scores (9.2 vs 8.2). Thieaudio Monarch MK3 carries a user score of 6.8. Subtonic STORM has significantly better bass with a 1.2-point edge, Subtonic STORM has better mids with a 0.7-point edge, Subtonic STORM has better treble with a 0.9-point edge, Subtonic STORM has significantly better dynamics with a 2.2-point edge, Subtonic STORM has significantly better soundstage with a 1.5-point edge, Subtonic STORM has significantly better details with a 1.9-point edge and Subtonic STORM has significantly better imaging with a 1.6-point edge.

Insights

Metric Subtonic STORM Thieaudio Monarch MK3
Bass 8.7 7.5
Mids 8.4 7.7
Treble 8.7 7.8
Details 9.7 7.8
Soundstage 9.5 8
Imaging 9 7.4
Dynamics 9.5 7.3
Tonality 9.1 7.8
Technicalities 9.3 7.9

Subtonic STORM Aggregated Review Score

Average Reviewer Scores

Average Reviewer Score:

9.2

Outstanding


Thieaudio Monarch MK3 Aggregated Review Score

Average Reviewer Scores

Average Reviewer Score:

8.2

Very Positive


Reviews Comparison

Subtonic STORM reviewed by Jays Audio

Jays Audio 10 Reviewer Score
S+ Tuning
S+ Tech
The best IEM I've ever heard. Best timbre. Super natural. TOTL tech. It's just good. That's all.
Youtube Video Summary

Most IEMs inevitably introduce flaws that shatter musical immersion—be it harsh treble, shouty vocals, or unbalanced bass. These imperfections act as chains, binding the listener and preventing that elusive state of pure, uninterrupted freedom within the music. While the OG EJ07 came close, even it faltered on certain tracks, its forward vocals becoming a jarring distraction when pushed hard. The Subtonic Storm, however, shatters this pattern entirely.

Contrary to its name, the Storm represents the eye of the hurricane—a sanctuary of pure, effortless sound. It liberates the music from tuning flaws, presenting it naturally and tranquilly. There are zero distractions or attachments holding the listener back, enabling deep introspection and complete immersion, as if conversing directly with the singer or instrument. This profound, intangible quality—achieving that free state—is why it's considered the best IEM, offering unmatched resolution, separation, and imaging, albeit at an astronomical $5,000 price point.

Value-wise, the Storm is undeniably terrible; the KZ ASF ($250) gets you 80% there, and the Monarch MKII ($1,000) delivers 95%. It's a luxury item, justified only by its unique, unmeasurable ability to dissolve worldly distractions and forge total oneness with the music. Crucially, it's not for everyone: Bass heads, background listeners, or those enjoying J-pop/K-pop/EDM will find far better value elsewhere under $300. Only those deeply seeking musical transcendence, with ample disposable income, should even consider it. For everyone else, stay away—you simply don’t need it.


Jays Audio original ranking

Jays Audio Youtube Channel

Thieaudio Monarch MK3 reviewed by Jays Audio

Jays Audio 8.5 Reviewer Score
S Tuning
S- Tech
Better low-end texture and overall more engaging than MK2, but lacks the mid-range/vocal magic, so depending on your preference either is great. Still TOTL tech like MK2. Great all-rounder.
Youtube Video Summary

Bass is where the Monarch MK3 steals the show: tight, textured, and rumbly with real slam and no bleed, giving male vocals a more natural heft while staying clean. The Prestige LTD pushes the low end back for a lighter hit but trades that for a more open, airy stage and superior layering—great for busy mixes like rock, metal, and classical. The Hype 2 mirrors the LTD’s bass balance and rumble conceptually, but lacks the same overall technical resolve, making the MK3 the better pick for pop, EDM, R&B, and hip-hop that benefit from weighty sub-bass.

Through the midrange, the LTD steps ahead on separation, detail, and note definition, presenting vocals slightly set back yet more airy and sparkly; female vocals especially shine. The MK3 counters with more weight and engagement on male vocals and a forward presence, though its stage isn’t as deep or spacious as the LTD (a modest vertical lift over Hype 2, but not a “$1k soundstage”). Up top, the LTD has the smoothest, best-extended treble with the most air and microdetail of the trio. All three excel at moderate volume, but none invites cranking like certain high-volume specialists.

As an all-rounder, the MK3 checks nearly every box yet misses that distinctive “special sauce” expected at its price; think ~15–20% uplift over Hype 2. The LTD delivers the bigger technical jump at roughly 25–30%, with staging, extension, and air taking the crown, making a strong case paired with a cheaper daily driver. The Monarch MK2 still earns a nod for its midrange/vocal magic if that’s the priority. Final word: both LTD and MK3 score an S; for those willing to spend, they’re easy to recommend—just match the tuning to the library and the qualities valued most.


Jays Audio original ranking

Jays Audio Youtube Channel
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Subtonic STORM reviewed by Yifang

Yifang 9.8 Reviewer Score
S+ Tuning
S+ Tech
Neutral: Staging is intentionally different to traditional IEMs and has forward projection. Can be pro or con depending on preference and genre, but makes any "real" music far more real than other IEMs, whereas "artificial" music can be relatively less impressive. Tonal perfection, technically unmatched, other high end IEMs may compete in some aspects, but never all at once. The single best available and works as an all-rounder. Requires tremendous amount of source gear investment to perfect it, low availability, and makes the whole system expensive and less convenient.
Youtube Video Summary

Subtonic STORM arrives as a spectacle: a limited run of 50 units presented in a hefty suitcase-style box that feels close to 2 kg. The unboxing greets with a personalized card and serialized plate—in this case marked “STORM 019.” Accessories are equally premium: a neatly organized tip case and a Singaporean handmade leather pouch crafted from aged Italian leather, signaling boutique attention to detail before the earphones even leave the case.

The earpieces show off a golden “stormy” faceplate evoking mythic cloud imagery, backed by hand-enameled black paint so meticulous that one in three plates is discarded to meet quality standards. Even the stock cable is positioned as ultra-high end, quoted at around $2,500 with an intricate crystal-lattice design. Price is acknowledged as “way too much money”, yet the presentation unabashedly stakes a claim as the world’s best IEM. This video stays focused on the unboxing and build; a full listening review is teased for a later date.


Yifang original ranking

Yifang Youtube Channel

Thieaudio Monarch MK3 reviewed by Yifang

Yifang 8.5 Reviewer Score
S- Tuning
S- Tech

Subtonic STORM reviewed by Shuwa-T

Shuwa-T 9.3 Reviewer Score
S Tuning
S Tech
Comment: TOTL tuning with TOTL technicalities to boot. Perfectly tuned, unparalled detail retrieval, staging, imaging, and proper holographic background as a cohesive package The price I guess

Shuwa-T original ranking

Shuwa-T Website

Bass: S Mids: S Treble: S Soundstage: S Details: S Imaging: S

Thieaudio Monarch MK3 reviewed by Shuwa-T

Shuwa-T 8.2 Reviewer Score
A+ Tuning
A+ Tech
Better bass response compared to the mk2 Trades off the lush midrange in place of a cleaner sounding, almost boring midrange

Shuwa-T original ranking

Shuwa-T Website

Bass: S- Mids: A+ Treble: A+ Soundstage: A+ Details: A+ Imaging: S-

Subtonic STORM reviewed by Precogvision

Precogvision 9.1 Reviewer Score
S- Tuning
S Tech
Easily at the top for resolution and dynamic contrast, accompanied by rigid transients and pinpoint layering.

Precogvision original ranking

Precogvision Youtube Channel
Bass: S Mids: A+ Treble: S Dynamics: S+ Details: S+ Imaging: S

Thieaudio Monarch MK3 reviewed by Precogvision

Precogvision 7.3 Reviewer Score
A- Tuning
A- Tech
Still perplexingly poor bass performance, but improves upon the Monarch MKII's treble extension noticeably.

Precogvision original ranking

Precogvision Youtube Channel
Bass: B Mids: A+ Treble: A+ Dynamics: B Details: A+ Imaging: A-

Subtonic STORM reviewed by Tim Tuned

Tim Tuned 9 Reviewer Score
S Tuning
S Tech
The most extraodinary normal sounding IEM ever. Amazing all-around big and heavy shell
Youtube Video Summary

Subtonic STORM closes the list as the ultra-high-end, “one-and-done” pick—the kind of most expensive flagship that needs no hype because the name says it all. Chosen for a “versatile” roundup, it’s framed as the endgame option for those who want a single IEM to cover everything and have the budget to match—cue the playful “rich boys” jab.

The verdict is equal parts praise and pragmatism: demo first. STORM isn’t a blind-buy, and the price is so stratospheric it gets the tongue-in-cheek advice to sell a car, a house, or a kidney. In short, a summit-fi statement piece with serious one-set potential—but only after making sure the tuning truly clicks.

Bass: S Mids: S Treble: S

Tim Tuned original ranking

Tim Tuned Youtube Channel

Thieaudio Monarch MK3 reviewed by Tim Tuned

Tim Tuned 7.5 Reviewer Score
A Tuning
S Tech
MK2 but more fun and more V-shape Not as natural in timbre

Tim Tuned original ranking

Tim Tuned Youtube Channel
Bass: A+ Mids: A+ Treble: A+

Subtonic STORM reviewed by Gizaudio Axel

Gizaudio Axel 9 Reviewer Score
S Tuning
S+ Tech
The most detailed IEM I’ve ever heard. Exceptional resolution, neutral sound signature. Hard to drive.

Gizaudio Axel original ranking

Gizaudio Axel Youtube Channel

Thieaudio Monarch MK3 reviewed by Gizaudio Axel

Gizaudio Axel 8 Reviewer Score
A Tuning
A+ Tech
I prefer the Monarch MK II for its tonality, vocals, and timbre, but I get why some prefer the MK III. More bass, treble, and detail than the Monarch MK II. The vocal magic of the Monarch MK II is gone.

Gizaudio Axel original ranking

Gizaudio Axel Youtube Channel

Subtonic STORM reviewed by Smirk Audio

Smirk Audio 8.8 Reviewer Score
S- Tuning
S Tech
World-class resolution and layering. Extreme, almost exaggerated dynamics. Staging is large but not class-leading.

Smirk Audio original ranking

Smirk Audio Head-Fi Profile

Bass: S- Mids: S- Treble: S- Dynamics: S Details: S Imaging: S-

Thieaudio Monarch MK3 reviewed by Smirk Audio

Smirk Audio 7.9 Reviewer Score
A Tuning
A+ Tech
Elevated, well-textured mid-bass. Pleasant mids. Elevated upper-treble may be pesky to some.

Smirk Audio original ranking

Smirk Audio Head-Fi Profile

Bass: A+ Mids: A+ Treble: A Dynamics: A+ Details: A+ Imaging: A+

Subtonic STORM reviewed by Head-Fi.org

Head-Fi.org 9 * score rescaled + normalized
4 community members have rated the Subtonic STORM at an average of 4.5/5 on Head-Fi. Overall sentiment: Outstanding.

URL to full Review

Head-Fi.org original ranking

Thieaudio Monarch MK3 reviewed by Head-Fi.org

Head-Fi.org 9 * score rescaled + normalized
One community member has rated the THIEAUDIO MONARCH MKIII at an average of 5.0/5 on Head-Fi. Overall sentiment: Masterpiece.

URL to full Review

Head-Fi.org original ranking

Subtonic STORM (more reviews)

Subtonic STORM reviewed by Bad Guy Good Audio

Bad Guy Good Audio 8.1 Reviewer Score
A+ Tuning
A- Tech
Technical excellence (accuracy). Near perfect tuning. Bass...great Price. Wait.
Youtube Video Summary

Subtonic STORM lands as a $5,200 flagship built around novel SLAM balanced-armature tech: the dual BA “subwoofer” and “woofer” are separated and crossed over independently, joined by a regular BA mid-woofer, additional BA mids, BA mid-tweeter and tweeter, plus two ESTnine drivers total with a seven-point crossover. The result isn’t just another spec sheet; it’s a system that behaves like a rethought low-end engine that sets up everything above it.

On music, the bass ranks an honest 8/10 because it doesn’t sound like typical BA bass—there’s real weight without mid bleed, so male/female vocals, strings, and guitars stay pristine. Complex tracks reveal studio fingerprints: the 38 Hz triple drop on Big Boi’s “Kill Jill” slams; the glockenspiel in Springsteen’s “Born to Run” is crystal; Pink Floyd’s “On the Run” left-right sweeps and the early gate announcement snap into focus; Hendrix’s uneven production becomes obvious; and the Led Zeppelin IV kick-drum intro hits with the produced, swirling authority it should. From Vivaldi to hip-hop, it just handles the library.

Stage is spacious and speaker-like off good sources, with positional cues that outclass sets like Elysian Annihilator and even edge the Fatfreq Grand Maestro for resolution, stage, and tonality—though Grand Maestro’s multi-tuning keeps it competitive. Ignore treble “hacksaw” graph takes and target-chasing; the performance argues against strict adherence to Harman-style curves. Diminishing returns are real, but for those chasing something genuinely different, the STORM’s reworked BA low end and refined EST top end deliver a uniquely authoritative, all-genre presentation that’s hard to unhear.

Bass: A+ Mids: A- Treble: A+

URL to full Review

Bad Guy Good Audio original ranking

Bad Guy Good Audio Youtube Channel

Subtonic STORM reviewed by Web Search

uses AI-Search to turn user, reddit and head-fi reviews into clear, concise summaries.
Web Search 9.5 Reviewer Score
S Tuning
S+ Tech

The Subtonic Storm delivers a balanced sound signature characterized by a generous sub-bass boost, neutral midrange, and an elevated, articulate treble response. Its standout feature is the implementation of proprietary SLAM drivers—custom balanced armatures handling separate sub-bass and mid-bass frequencies—which produce exceptional slam and texture rivaling dynamic drivers. The treble exhibits deliberate, controlled peaks between 5-15kHz, contributing to vividness without harshness, though some listeners may note a slight roll-off past 16kHz.

Technically, the Storm sets a high bar with class-leading dynamics, micro-detail resolution, and driver coherence across its hybrid array. Staging offers strong width and depth but lacks a cohesive center image. Ergonomically, the titanium shells are bulky and heavy, causing fatigue during extended use, and the stock cable is often criticized for stiffness. Additionally, its low sensitivity demands powerful amplification, limiting portability.


Thieaudio Monarch MK3 (more reviews)

Thieaudio Monarch MK3 reviewed by Z-Reviews

Z-Reviews 10 * score rescaled + normalized
Youtube Video Summary

Thieaudio Monarch MK3 takes the flagship slot with swagger: a 2DD + 6BA + 2EST array and a 4-way passive crossover, centered on the Impact² isobaric push-pull dual 10 mm subwoofer. The shells are huge and gorgeous (plain backs at ~$1000, fancy backs around ~$1100), vented on the underside, and paired with a supple, interchangeable-plug cable (2.5 / 3.5 / 4.4). Despite the driver count, coherence is the headline: this isn’t a parts parade—it’s a single, surgically precise instrument.

Sonically, bass behaves like a well-tuned subwoofer in a treated room: tight, fast, and slammy without bloat. The real party trick is imaging and spatial “distance”—sounds lock into place with eerie specificity, making familiar tracks feel new. Instrument separation is crystalline, treble air is effortless, and the set is easy to drive yet scales—more power refines rather than merely getting louder. Tip rolling matters: stock foams/silicones are okay, Dekoni helps, Dunu S&S can fit oddly on these large shells, while Render tips seal the room and boost performance ~15–20%, supercharging the imaging and engagement.

Against the Monarch MKII (good, kept around), the MK3 feels like a different tier—the sort of tuning that glues ears to music and makes skipping tracks impossible. Accessories are minimal because the message is clear: you’re buying the sound, and it arguably feels underpriced for this level. Currently on pre-order, this is peak IEM energy—an endgame-grade, king-making performance that invites hyperbole and earns it.


Z-Reviews original ranking

Z-Reviews Youtube Channel

Thieaudio Monarch MK3 reviewed by Jaytiss

Jaytiss 8.5 Reviewer Score
A Tuning
A- Tech
Fatiging at times for me, too fun at times.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: A- Treble: A- Dynamics: A+ Soundstage: A+

Thieaudio Monarch MK3 reviewed by Nymz

Nymz 7.1 Reviewer Score
A- Tuning
B+ Tech
An improvement in the bass and treble department over the Mk2, but without the same special sauce in the mid-range and with some imaging problems still.

Nymz original ranking

Nymz Website

Bass: A- Mids: A- Treble: A+ Details: A- Imaging: B

Thieaudio Monarch MK3 reviewed by Fresh Reviews

Fresh Reviews 7* * The score of this reviewer influences only the Gaming Score
Borders A for some titles
Youtube Video Summary

Thieaudio Monarch MK3 steps up as a true flagship: a 2DD + 6BA + 2EST hybrid with high-grade Knowles/Sonion drivers, a gorgeous marbled faceplate, and—crucially—a vastly improved shell over MK2. Comfort moves from a 2-hour limit to all-session wear, and the stock package (solid cable with swappable terminations, foam and silicone tips) is well thought out. Tip choice meaningfully shapes performance; options like SednaEarfit Short or Comply foam push it toward its best.

Tuning follows a balanced, studio-leaning tonality with extra sub-bass warmth, delivering both clinical insight and genuine fun. Micro-detail is standout, bass is clean, textured, and physical (from Nirvana’s “Lithium” to modern hip-hop drops), and male vocals are among the most convincing heard on an IEM in this tier. Stage is wider and a bit taller than MK2, with excellent imaging, layering, and separation, keeping drums, bass guitar, and synth lines neatly organized without blunting impact.

For competitive gaming, the MK3 brings a tight soundstage, strong depth perception, and clear audio cue emphasis, offering precise 360° placement and adequate verticality. Versus Prestige Limited, it trades some sterile clinical edge for a more engaging, atmospheric presentation that reads distance and urgency better; compared to Yanyin Moonlight Ultra, it’s the more coherent pick for both games and music. While great mid-fi options like Zens Top, Orchestra Lite, or Yanyin Canon 2 remain strong, Monarch MK3 feels like the elevated, “dreamy” flagship experience—a new top choice for music enjoyment that also dominates in game when properly tipped.


Fresh Reviews original ranking

Fresh Reviews Youtube Channel

Subtonic STORM User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

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Thieaudio Monarch MK3 User Review Score

Average User Scores

Average User Score:

Based on 1 user reviews

6.8

Cautiously Favorable

Subtonic STORM Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

7.7

Gaming Grade

A

Thieaudio Monarch MK3 Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

7.6

Gaming Grade

A

Subtonic STORM Scorings

Average Technical & Tuning Grades

Average Tunign Grade

S
  • Expect a breathtakingly coherent response that elevates musicality and precision in equal measure. It highlights musical intent with uncanny clarity.

Average Technical Grade

S
  • Expect an effortlessly clean presentation that keeps complex mixes perfectly organized. There is zero sense of congestion even at high volume.
Bass S-
Expect a gripping low-end presence that marries clarity with visceral impact. Dynamic swings land with thrilling force.
Mids A+
Expect an immersive mid band where every vocal inflection and texture shines. Complex arrangements stay perfectly composed.
Treble S-
It delivers superb treble brilliance that stays pure even in complex passages. It adds excitement while staying pure.
Dynamics S
Dynamics reach reference class, delivering lightning-fast transients and perfect contrast. Every transient feels lightning fast.
Soundstage S
It summons a grand acoustic sphere where distance, height, and width feel unrestricted. You perceive true venue size effortlessly.
Details S
Every recording is presented with forensic clarity that still sounds organic. It reveals the recording environment perfectly.
Imaging S
Reference-class imaging delivers perfectly pinpoint accuracy in 3D space with zero positional drift. Localization is pinpoint-perfect in 3D.
Gaming A
Clear spatial presentation handles directional cues effectively. Distinguishes key gameplay sounds while maintaining decent immersion. Bad value-to-cost for gaming purpose - not recommended

Thieaudio Monarch MK3 Scorings

Average Technical & Tuning Grades

Average Tunign Grade

A
  • Overall balance feels confident and refined, rewarding long listening sessions. A reliable all-rounder for everyday listening.

Average Technical Grade

A
  • It delivers a confident technical showing with defined layers and satisfying clarity. You can follow backing vocals with relative ease.
Bass A
Bass is strong and well-defined, delivering slam with admirable control. Electronic drops hit with authority.
Mids A
The mids sound lush and articulate, capturing emotion effortlessly. Strings and keys shimmer with realism.
Treble A
Treble performance is excellent—airy, extended, and beautifully controlled. It reveals subtle studio ambiance.
Dynamics A-
The system snaps into action with precision, highlighting every swell. Recordings feel energetic and alive.
Soundstage A+
Three-dimensional layering becomes effortless, placing performers on a lifelike virtual stage. Venue ambience wraps around convincingly.
Details A
Low-level information blossoms, presenting a rich tapestry of articulate sound. Analytical listeners will be delighted.
Imaging A-
You can literally point to where sounds originate across the stage. You can point to where sounds originate.
Gaming A
Clear spatial presentation handles directional cues effectively. Distinguishes key gameplay sounds while maintaining decent immersion. Bad value-to-cost for gaming purpose - not recommended

Subtonic STORM User Reviews

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Thieaudio Monarch MK3 User Reviews

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M Makavelian
6.8

If this is what 'fun' sounds like, I ain't about it.

Pros
Detail retrieval
Cons
Recessed mids and odd timbre.

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