FIR Audio RN6 VS Thieaudio Valhalla
IEM Comparison: Expert & Community Scores Side-by-Side
FIR Audio RN6 and Thieaudio Valhalla use 1EST+1DD BA and 19BA driver setups respectively. FIR Audio RN6 costs $3,300 while Thieaudio Valhalla costs $2,000. FIR Audio RN6 is $1,300 more expensive. Thieaudio Valhalla holds a decisive 2.7-point edge in reviewer scores (6.2 vs 8.9). Thieaudio Valhalla has significantly better bass with a 1.5-point edge, Thieaudio Valhalla has significantly better mids with a 2.5-point edge, Thieaudio Valhalla has significantly better treble with a 2-point edge, Thieaudio Valhalla has significantly better details with a 2.5-point edge and Thieaudio Valhalla has significantly better imaging with a 2.8-point edge.
Insights
| Metric | FIR Audio RN6 | Thieaudio Valhalla |
|---|---|---|
| Bass | 7 | 8.5 |
| Mids | 6 | 8.5 |
| Treble | 6 | 8 |
| Details | 6 | 8.5 |
| Soundstage | 9 | 9 |
| Imaging | 6 | 8.8 |
| Dynamics | 8.5 | 8.5 |
| Gaming capabilities | 4.6 | 8.2 |
FIR Audio RN6 Aggregated Review Score
FIR Audio RN6 Average Reviewer Scores
Thieaudio Valhalla Aggregated Review Score
Thieaudio Valhalla Average Reviewer Scores
FIR Audio RN6 Details
Driver Configuration: 1EST+1DD BA
Tuning Type: n/a
Price (Msrp): $3,300
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Thieaudio Valhalla Details
Driver Configuration: 19BA
Tuning Type: V-Shaped
Price (Msrp): $2,000
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FIR Audio RN6 User Review Score
FIR Audio RN6 Average User Scores
Average User Score: n/a
Based on 0 user reviews
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Thieaudio Valhalla User Review Score
Thieaudio Valhalla Average User Scores
Average User Score: n/a
Based on 0 user reviews
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FIR Audio RN6 Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
4.6Gaming Grade
CThieaudio Valhalla Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
8.2Gaming Grade
A+FIR Audio RN6 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B- Generally enjoyable tonal character with some noticeable unevenness. Maintains listenability while showing room for refinement in frequency balance.
Average Technical Grade
B- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
Thieaudio Valhalla Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S-- Highly polished technical execution. Excellent frequency synergy creates an immersive experience. Enhances musical content.
Average Technical Grade
S-- Excellent clarity and detail. Precise imaging and expansive soundstage. Manages complex passages with minimal smearing and good transient speed.
FIR Audio RN6 Reviews
FIR Audio RN6 reviewed by: Nymz
6.2
Reviewer Score
Good bass texture with nothing else remarkable... until I saw its price.
Thieaudio Valhalla Reviews
Thieaudio Valhalla reviewed by: Super* Review
2025-08-19
9*
* score normalized
I'm really tempted to go out and buy one of this things for myself - if it fit me even better, I probably would.Super* Review original ranking
Super* Review Youtube Channel
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.
Thieaudio Valhalla reviewed by:
Fresh Reviews
7.5*
* The score of this reviewer influences only the Gaming Score
S tier for COD, borders A- for other titlesFresh Reviews original ranking
Fresh Reviews Youtube Channel
Thieaudio Valhalla reviewed by: Smirk Audio
8.1
Reviewer Score
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Thieaudio Valhalla reviewed by: Jays Audio
9.5
Reviewer Score
TOTL all-rounder with "endgame" tech across the board, a better tuned U12T with better bass texture Jays Audio Youtube Channel
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.
Thieaudio Valhalla reviewed by: Jaytiss
9.6
Reviewer Score
Big fan, but lack fantastic air like some other sets. Jaytiss Youtube Channel
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.
Thieaudio Valhalla reviewed by: Shuwa-T
8.3
Reviewer Score
Deep bass despite all BA set, techs carry this set more than the overall tone Treble is mushy for something with so many BAs, not for high frequency enjoyers
FIR Audio RN6 User Reviews
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