Thieaudio Monarch Mk2 VS Thieaudio Monarch MK3
IEM Comparison: Expert & Community Scores Side-by-Side
Thieaudio Monarch Mk2 and Thieaudio Monarch MK3 use 1DD+6BA+2EST and 2DD+6BA+2EST driver setups respectively. Thieaudio Monarch Mk2 costs $1,000 while Thieaudio Monarch MK3 costs $1,000. Thieaudio Monarch MK3 holds a slight 0.2-point edge in reviewer scores (8.1 vs 8.2). User ratings place Thieaudio Monarch Mk2 at 8.5 and Thieaudio Monarch MK3 at 6.8. Thieaudio Monarch MK3 has better bass with a 0.7-point edge, Thieaudio Monarch Mk2 has better mids with a 0.8-point edge, Thieaudio Monarch MK3 has slightly better treble with a 0.3-point edge and Thieaudio Monarch MK3 has better dynamics with a 0.8-point edge.
Insights
| Metric | Thieaudio Monarch Mk2 | Thieaudio Monarch MK3 |
|---|---|---|
| Bass | 6.8 | 7.5 |
| Mids | 8.4 | 7.7 |
| Treble | 7.5 | 7.8 |
| Details | 7.6 | 7.8 |
| Soundstage | 8 | 8 |
| Imaging | 7.4 | 7.4 |
| Dynamics | 6.5 | 7.3 |
| Tonality | 8.1 | 7.8 |
| Technicalities | 7.8 | 7.9 |
Thieaudio Monarch Mk2 Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.1Very Positive
Thieaudio Monarch MK3 Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.2Very Positive
Reviews Comparison
Thieaudio Monarch Mk2 reviewed by Jays Audio
8.5
Reviewer Score
Jays Audio Youtube Channel
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Thieaudio Monarch MK3 reviewed by Jays Audio
8.5
Reviewer Score
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 Youtube Channel
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Thieaudio Monarch Mk2 reviewed by Jaytiss
8.5
Reviewer Score
Youtube Video Summary
Build & accessories: Compact shell with a slightly old-school shape and flat 2-pin connectors, secure fit, and a nozzle some may find a bit much. The package includes Thieaudio’s large, sturdy case, multiple tips, a cleaning brush, and a fabric-sheathed stock cable with a solid chin slider and a durable Y-split. The cable’s modular plug system (2.5/3.5/4.4) locks in confidently and feels well made.
Sound: a neutral foundation with a dash of fun—clean upper mids, tasteful sparkle, and tight, articulate bass. Unit variance shows on graphs (his sample reads a bit bassier with slightly more treble vs other measurements), but the core tuning stays intact: rich mids, smooth presence, and airy extension that present music as natural, wide, and open. Versus Monarch MKIII, this MKII feels less bright and less fatiguing, with fuller mids. Compared to Annihilator 2023, MKII is flatter and more even (Annihilator hits harder and has a 10k zing some hear as “fake”). Against Lime Ears Tera, MKII is a touch warmer and easier; versus the pricier Europa, it tracks similarly on paper but wins on comfort and value; and it offers more body than budget darlings like Hexa, which can come off lean.
Verdict: a high-tier all-rounder prized for midrange timbre, air/detail, note weight, and imaging. It reads neutral-natural with just enough excitement to stay engaging over long sessions. Personal taste and fit still matter—always demo if possible—but within this preference space, Monarch MKII remains a special, well-balanced choice that continues to earn its spot among top IEMs.
Jaytiss Youtube Channel
Thieaudio Monarch MK3 reviewed by Jaytiss
8.5
Reviewer Score
Jaytiss Youtube Channel
Thieaudio Monarch Mk2 reviewed by Yifang
8
Reviewer Score
Thieaudio Monarch MK3 reviewed by Yifang
8.5
Reviewer Score
Thieaudio Monarch Mk2 reviewed by Gizaudio Axel
8
Reviewer Score
Gizaudio Axel original ranking
Gizaudio Axel Youtube ChannelThieaudio Monarch MK3 reviewed by Gizaudio Axel
8
Reviewer Score
Gizaudio Axel original ranking
Gizaudio Axel Youtube ChannelThieaudio Monarch Mk2 reviewed by Shuwa-T
7.9
Reviewer Score
Thieaudio Monarch MK3 reviewed by Shuwa-T
8.2
Reviewer Score
Thieaudio Monarch Mk2 reviewed by Smirk Audio
7.6
Reviewer Score
Thieaudio Monarch MK3 reviewed by Smirk Audio
7.9
Reviewer Score
Thieaudio Monarch Mk2 reviewed by Tim Tuned
7.5
Reviewer Score
Tim Tuned Youtube Channel
Thieaudio Monarch MK3 reviewed by Tim Tuned
2025-08-14
7.5
Reviewer Score
Tim Tuned Youtube Channel
Thieaudio Monarch Mk2 reviewed by Nymz
7.1
Reviewer Score
Thieaudio Monarch MK3 reviewed by Nymz
7.1
Reviewer Score
Thieaudio Monarch Mk2 reviewed by Precogvision
7
Reviewer Score
Precogvision Youtube Channel
Thieaudio Monarch MK3 reviewed by Precogvision
7.3
Reviewer Score
Precogvision Youtube Channel
Thieaudio Monarch Mk2 reviewed by Head-Fi.org
9
* score rescaled + normalized
Thieaudio Monarch MK3 reviewed by Head-Fi.org
9
* score rescaled + normalized
Thieaudio Monarch Mk2 (more reviews)
Thieaudio Monarch Mk2 reviewed by Super* Review
9*
* score rescaled + normalized
Youtube Video Summary
Build & fit: Premium presentation with a handsome “lava” faceplate and a cloth-sheathed cable featuring swappable terminations—useful, but the connector is bulky enough to be unwieldy. The shell itself is very large and can be tricky for many ears, affecting seal and even bass response. Comfort and security are not strong suits. Tip rolling helps; AZLA AirFit Light tips improved seal and tamed occasional treble bite.
Sound: A neutral, mid-forward tuning with a tasteful sub-bass lift, clean lower treble, and excellent extension. Midrange detail pops with fine micro-contrast, while treble remains smooth—evoking that easy, HD600-like effortlessness. Stage is wide with standout imaging and layering. The trade-off is a lean lower-mid/mid-bass region (that “Harman dip”), which can make non-bass-heavy music feel a bit dry and clinical, reducing perceived depth and visceral impact.
Comparisons & verdict: Versus Moondrop’s stable, Blessing 2 still offers a fuller, more linear low end and remains the more all-round pick; S8 brings superb treble and mid detail with similarly lean bass; Campfire Aura dazzles with holographic imaging and surprisingly satisfying BA bass, though its tonality is quirkier. Monarch MKII earns a solid 4/5 for tonal balance, resolution, and imaging—but the size/fit caveat is serious, and the lean bass means it won’t dethrone Blessing 2 for those craving warmth or body. Demo first; if it fits and that crisp neutrality appeals, it’s a fantastic listen.
Super* Review original ranking
Super* Review Youtube ChannelThieaudio Monarch Mk2 reviewed by Crin
8.5
Reviewer Score
Youtube Video Summary
Thieaudio Monarch Mk2 stays a top-tier pick by balancing excellent tonality with solid, price-appropriate technicalities. The tuning sits close to the current meta, with a slight dip in the lower mids and a noticeable 6 kHz emphasis that adds sparkle and energy. It’s the “spice” to the Mega5-EST’s plain water—still coherent and controlled, but with extra fizz that makes music feel lively. While resolution doesn’t chase the extremes of Elysian Annihilator or Softears RS10, within the $999 bracket the performance remains compelling, making it an easy recommendation among kilobuck IEMs.
Build and accessories are straightforward: a full-resin shell with metal nozzle, a cloth-sheathed cable featuring interchangeable 3.5 / 2.5 / 4.4 terminations, and a proper case with silicone and foam tips. The fiery orange faceplate is the sole colorway. The catch is fit—the shell is large, and for smaller ears that can be a deal-breaker; no sound quality matters if it won’t seal comfortably. For those wanting a near-perfect meta hit with less treble spice, Hisenior Mega5-EST is noted as the safer tonal bullseye.
Choose Monarch Mk2 if a slightly V-leaning, meta-aligned tuning with engaging upper-presence appeals, and if the ear geometry can handle the chunky shell. Skip it if chasing max detail retrieval above all else, craving a more pronounced V-shape (consider Monarch Mk3 instead), or if fit is uncertain. The overall verdict: impeccable tuning paired with good—if not summit—technical chops keeps Monarch Mk2 at the top of the ranking conversation without needing boutique pricing.
Crin Youtube Channel
Thieaudio Monarch MK3 (more reviews)
Thieaudio Monarch MK3 reviewed by 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 Youtube Channel
Thieaudio Monarch MK3 reviewed by
Fresh Reviews
7*
* The score of this reviewer influences only the Gaming
Score
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
Thieaudio Monarch Mk2 Details
Driver Configuration: 1DD+6BA+2EST
Tuning Type: Neutral with Bass Boost
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $1,000
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Thieaudio Monarch MK3 Details
Driver Configuration: 2DD+6BA+2EST
Tuning Type: U-Shaped
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $1,000
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Thieaudio Monarch Mk2 User Review Score
Average User Scores
Average User Score:
Based on 1 user reviews
8.5Excellent
Thieaudio Monarch MK3 User Review Score
Average User Scores
Average User Score:
Based on 1 user reviews
6.8Cautiously Favorable
Thieaudio Monarch Mk2 Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.9Gaming Grade
B+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
7.6Gaming Grade
AThieaudio Monarch Mk2 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- It delivers a coherent, natural timbre that remains captivating across genres. Acoustic instruments sound lifelike and textured.
Average Technical Grade
A- Overall technical control is strong, presenting instruments with clarity and sensible staging. Textures are portrayed with satisfying clarity.
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.
Thieaudio Monarch Mk2 User Reviews
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewMy vocal magic
Pros
Vocals that make you smile. THE most musical set for me.Cons
Bass is okay for the price. Very occasional upper-mid sharpnessThieaudio Monarch MK3 User Reviews
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewIf this is what 'fun' sounds like, I ain't about it.
Pros
Detail retrievalCons
Recessed mids and odd timbre.Find your next IEM:
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