Thieaudio Monarch Mk2 and Thieaudio Valhalla use 1DD+6BA+2EST and 19BA driver setups respectively. Thieaudio Monarch Mk2 costs $1,000 while Thieaudio Valhalla costs $2,000. Thieaudio Valhalla is $1,000 more expensive. Thieaudio Valhalla holds a clear 0.8-point edge in reviewer scores (8.1 vs 8.9). Thieaudio Monarch Mk2 carries a user score of 8.5. Thieaudio Valhalla has significantly better bass with a 1.5-point edge, Thieaudio Monarch Mk2 has slightly better mids with a 0.3-point edge, Thieaudio Valhalla has slightly better treble with a 0.3-point edge, Thieaudio Valhalla has significantly better dynamics with a 1.5-point edge, Thieaudio Valhalla has better soundstage with a 0.5-point edge, Thieaudio Valhalla has better details with a 0.9-point edge and Thieaudio Valhalla has significantly better imaging with a 1.4-point edge.
Insights
Metric | Thieaudio Monarch Mk2 | Thieaudio Valhalla |
---|---|---|
Bass | 6.8 | 8.3 |
Mids | 8.4 | 8.1 |
Treble | 7.5 | 7.8 |
Details | 7.6 | 8.5 |
Soundstage | 8 | 8.5 |
Imaging | 7.4 | 8.8 |
Dynamics | 6.5 | 8 |
Tonality | 8.1 | 8.5 |
Technicalities | 7.8 | 8.4 |
Thieaudio Monarch Mk2 Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.1Very Positive
Thieaudio Valhalla Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.9Excellent
Reviews Comparison
Thieaudio Monarch Mk2 reviewed by Super* Review
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
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Thieaudio Valhalla reviewed by Super* Review
2025-08-19Youtube Video Summary
Thieaudio’s Valhalla is a $2,000, all–balanced armature flagship packing 19 balanced armatures in new-for-the-brand metal shells. The look leans understated—gunmetal/pewter with a hint of rosiness—and the build feels solid, though the stock cable is thick and the swappable plugs rely on friction with no positive lock, which can pull loose. Fit is still large, but notably better than recent Monarch generations: once seated it’s stable and secure enough for long sessions, even if it won’t disappear in-ear.
Tonally, Valhalla targets a clean neutral with a meaty, sub-bass–focused boost, slightly warmer through the mids and less peaky up top than Monarch Mk IV. Despite being all-BA, the bass feels more dynamic and satisfying than the Monarch’s, and the big story is technical performance: imaging, separation, stage definition, and overall resolution are genuinely standout—“flagship-grade” in a way many kilobuck sets aren’t. Downsides are the sheer size and that cumbersome cable, but as a listen it’s special and compelling. Verdict: four stars out of five, and an easy pick over Monarch Mk IV on sonics if the fit works.
Super* Review original ranking
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Thieaudio Monarch Mk2 reviewed by Jays Audio
Jays Audio Youtube Channel
Thieaudio Valhalla reviewed by Jays Audio
Youtube Video Summary
Thieaudio Valhalla lands as an “endgame” all-rounder with standout resolution, micro-detail, and imaging. Layering and separation are locked in, with vocals that aren’t scooped—mids stay present and natural. Sub-bass hits rumblier than the U12t and the treble avoids that sudden, sharp peak, making the overall presentation smoother yet still airy. Versus the Cadenza 12, Valhalla is less treble-heavy, a touch bassier, and not as bright-leaning; the Cadenza 12 may edge it on micro-detail by only a few percentage points, so it’s a straight tuning preference: go Cadenza 12 for leaner/brighter sparkle, go Valhalla for the better-balanced bassy all-rounder.
On value, this isn’t twice the performance of a Monarch Mk II/Mk III—think ~10% better with clear diminishing returns. For the “chase the very best” crowd, it’s absolutely worth a listen; for most, Monarchs/LTD/Crimson are already more than enough for a so-called endgame. Final call: Top Tier for tuning and sound refinement—not a value pick, but a legit endgame-grade set.
Jays Audio Youtube Channel
Thieaudio Monarch Mk2 reviewed by Jaytiss
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 Valhalla reviewed by Jaytiss
Youtube Video Summary
Thieaudio Valhalla lands as a 19-BA flagship around $2,000 that doubles down on build and ergonomics. The titanium shell is chunky but beautifully machined, skin-friendly, and the nozzle grips tips securely; faceplates are swappable for a premium if the stock look isn’t it. Accessories are basic—tips, foams, brush, the usual case—and the stock cable is comfy with a working chin slider, but the modular 3.5/4.4 plugs don’t lock and can pop off too easily. The slightly recessed 2-pin is fine, yet the ear-side barrel leaves a small gap that doesn’t sit flush; a simple aftermarket cable fixes the vibe. Taken as an object, this is world-class industrial design with a couple cable quirks.
On the ear, Valhalla hits a clean, incisive neutrality with just enough flavor. Sub-bass is surprisingly firm for BA, mid-bass stays tidy, and the mids are pristine—no glaze, no haze. There’s a tasteful dip through ~3–6 kHz that keeps the upper-mids from shouting, while a touch of 8 kHz sparkle adds air; treble extends smoothly without turning edgy. It’s a highly technical, high-resolution listen that can read “almost boring” if a colored signature is the goal—but for detail, separation, and coherence, it delivers. Unit variation appears minor (another sample showed a bit more 4–6 k energy), yet the core tuning stays intact.
Versus housemates: Origin swings bassier and “fun”; Valhalla feels cleaner, clearer, more resolute. Hype 2/4 don’t match the air and microdetail; Hype 10 gets closer up top but raises value questions. Oracle MK3 has more 4–5 k zing and lighter sub-bass; Fatfreq Grand Maestro hits similarly rich lows but brings fit hassles and module faff. Against the Elysian Annihilator, pick Annihilator for extra sub-bass and spectacle; pick Valhalla for comfort, longevity, and easy cable-swapping. Not perfect—the stock cable system is flimsy and the “air” isn’t the most crystalline—but this is a top-tier contender with a refined, broadly pleasing tuning and a shell that feels built to outlast the hype.
Jaytiss Youtube Channel
Thieaudio Monarch Mk2 reviewed by Shuwa-T
Thieaudio Valhalla reviewed by Shuwa-T
Thieaudio Monarch Mk2 reviewed by Smirk Audio
Thieaudio Valhalla reviewed by Smirk Audio
Thieaudio Monarch Mk2 reviewed by Head-Fi.org
Thieaudio Valhalla reviewed by Head-Fi.org
Thieaudio Monarch Mk2 (more reviews)
Thieaudio Monarch Mk2 reviewed by Crin
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 Mk2 reviewed by Yifang
Thieaudio Monarch Mk2 reviewed by Gizaudio Axel
Gizaudio Axel original ranking
Gizaudio Axel Youtube ChannelThieaudio Monarch Mk2 reviewed by Tim Tuned
Tim Tuned Youtube Channel
Thieaudio Monarch Mk2 reviewed by Nymz
Thieaudio Monarch Mk2 reviewed by Precogvision
Precogvision Youtube Channel
Thieaudio Valhalla (more reviews)
Thieaudio Valhalla reviewed by Bad Guy Good Audio
Youtube Video Summary
ThieAudio Valhalla comes in hot as a true flagship challenger: a titanium shell housing 19 drivers—14 “Sonion” and five “Knowles"—and a price planted in the ~$2K bracket. This tier isn’t like GPUs where benchmarks decide winners; earphones here are closer to watches—craft, taste, and execution. On that score, Valhalla feels legit: premium build, branded internals, and tuning aimed squarely at high-end competition that regularly asks two to three times more.
The low end lands with plenty of energy and control—808 drops for Ghetto Boys/Public Enemy/Wu-Tang/Kendrick/Tupac/Outkast hit clean, while four- and five-string bass guitar lines carry real texture and decay. Iconic kick work like “When the Levee Breaks” thumps with satisfying weight without smearing. Midrange is dialed: no bloated mid-bass warming up female vocals, no shouty upper mids pushing voices unnaturally forward—great for a vocal-centric library and classic cuts (think “Sultans of Swing”). Up top, harmonics extend with air and clarity without the zingy fatigue—decays aren’t chopped off, so cymbals and overtones feel complete rather than muted.
On ranking, this reads as a top-five contender with this library, easily competing with sets in the $4–6K lane on balance, quality, and tuning. The only real ding is the presentation box, which doesn’t scream “luxury” the way the sound and build do. Verdict: squarely between “would buy” and “going to hype it.” Given ThieAudio’s run of legit releases (Monarch line, Oracle MKIII, etc.), Valhalla fits the pattern—no weak link in the chain, just a serious flagship play at a price that undercuts many rivals.
Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube Channel
Thieaudio Valhalla reviewed by
Fresh Reviews
Youtube Video Summary
Thieaudio Valhalla lands as a lavish, 19-BA-per-side flagship tuned warm-natural with a palpable sub-bass emphasis, quick attack/decay, and standout separation and layering. Vocals read both natural and technical—male and female alike—without bass bleed, while the treble carries enough air to keep micro-detail clean. Comfort and build impress, making it an easy all-day daily driver and a legitimate endgame pick for music that also crosses over to gaming.
In shooters, Valhalla excels at depth perception, verticality, and parsing simultaneous cues. For Call of Duty it’s an outright S-tier: footsteps, fly-ins, and distant strikes are easy to place with zero guesswork. In Apex Legends it sits around A to A-—gunfire is beautifully controlled, but super-light slides/taps can be a touch subdued. In Valorant it’s highly competitive with top open-backs, while in CS2 the tuning keeps gunfire less shouty and footstep reads strong, making it a great IEM choice overall. Net result on the “wallhack certification” scale: A to A- across multiple titles—an expensive IEM that earns its keep if both music enjoyment and competitive clarity are on the checklist.
Fresh Reviews original ranking
Fresh Reviews Youtube ChannelThieaudio 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 Valhalla Details
Driver Configuration: 19BA
Tuning Type: V-Shaped
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $2,000
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Thieaudio Monarch Mk2 User Review Score
Average User Scores
Average User Score:
Based on 1 user reviews
8.5Excellent
Thieaudio Valhalla User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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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 Valhalla Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.9Gaming 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 Valhalla Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S-- Expect a tasteful, well-judged response that feels both musical and true to the source. Great synergy with a wide range of genres.
Average Technical Grade
A+- It sounds refined and controlled, keeping instruments neatly separated with immersive staging. Busy arrangements remain neatly organized.
Thieaudio Monarch Mk2 User Reviews
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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 Valhalla User Reviews
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