Aful Cantor and Thieaudio Valhalla use 14BA and 19BA driver setups respectively. Aful Cantor costs $800 while Thieaudio Valhalla costs $2,000. Thieaudio Valhalla is $1,200 more expensive. Thieaudio Valhalla holds a decisive 1.1-point edge in reviewer scores (7.8 vs 8.9). Aful Cantor carries a user score of 8.5. Thieaudio Valhalla has slightly better bass with a 0.3-point edge, Thieaudio Valhalla has slightly better mids with a 0.4-point edge, Aful Cantor has significantly better treble with a 1-point edge, Thieaudio Valhalla has significantly better dynamics with a 3-point edge, Thieaudio Valhalla has slightly better soundstage with a 0.3-point edge, Aful Cantor has better details with a 0.5-point edge and Thieaudio Valhalla has slightly better imaging with a 0.3-point edge.
Insights
Metric | Aful Cantor | Thieaudio Valhalla |
---|---|---|
Bass | 8 | 8.3 |
Mids | 7.8 | 8.1 |
Treble | 8.8 | 7.8 |
Details | 9 | 8.5 |
Soundstage | 8.3 | 8.5 |
Imaging | 8.5 | 8.8 |
Dynamics | 5 | 8 |
Tonality | 7.6 | 8.5 |
Technicalities | 8.9 | 8.4 |
Aful Cantor Aggregated Review Score
Average Reviewer Scores
Thieaudio Valhalla Aggregated Review Score
Average Reviewer Scores
Aful Cantor Details
Driver Configuration: 14BA
Tuning Type: Vocal
Brand: AFUL Top AFUL IEMs
Price (Msrp): $800
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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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Aful Cantor User Review Score
Average User Scores
Average User Score:
Based on 2 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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Aful Cantor Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
8Gaming Grade
A+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
AAful Cantor Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A- Well-executed tonal character. No major flaws with good technical control. Smooth presentation works with multiple genres.
Average Technical Grade
S-- Excellent clarity and detail. Precise imaging and expansive soundstage. Manages complex passages with minimal smearing and good transient speed.
Thieaudio Valhalla Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S-- Refined execution with coherent frequency integration. Natural timbre reproduction and engaging presentation. Strong versatility.
Average Technical Grade
A+- Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
Aful Cantor Reviews
This is AFUL’s flagship science project: the Cantor packs 14 BAs per side (28 total) and a heap of buzzword tech—Dual-Channel Acoustic Maze for sub-bass, non-destructive direct-drive topology, and multi-dimensional crossover trickery that reads like Star Trek schematics. The housing even extends a stainless-steel nozzle to the tip’s end to bypass tip coloration—smart for consistency, dicey for ears with wide-bore silicones. Stick to the stock silicones or better yet foams to calm treble and avoid any scrape-risk.
Sonically it’s a hyper-resolving analyzer: every band is so present that volume tends to go down, not up, and mediocre recordings get roasted on the spot. Imaging is precise but a bit less cohesive than simpler sets; stage stays as the track dictates, while separation feels like a mixing desk with 14 faders. The sub-bass dives shockingly deep for an all-BA—think whisper-low “whoomp”—yet it isn’t a bass-monster; overall balance leans revealing rather than lush.
Pairing matters: clinical amps make it razor-edged, while warmer sources (R2R, iFi, RME-ish) and foam tips smooth it into addictive detail. At $800 it isn’t the one IEM to rule them all; it’s the specialist tool for listeners who want to dissect space, mic technique, and mix decisions—more control room than mosh pit. Cable and case are solid (4.4 mm balanced), and a tuning switch would have been nice, but for the right kind of nerd this thing lets you become the squig.
Maybe best detailed set, fit is extremely difficult. Jaytiss Youtube Channel
The AFUL Cantor delivers a balanced and neutral sound signature, praised for its exceptional upper air, treble extension, and pristine clarity. While the bass offers sufficient dynamics without being thunderous, and female vocals sound natural, some listeners might desire a touch more punch in the upper mids (around 2-3kHz) and find a slight peak in the 4-6kHz region occasionally noticeable. The premium build quality stands out, featuring a unique and stunning "star night" face plate, a thick but comfortable shell with a slender nozzle, and excellent accessories. These include a slightly microphonic but otherwise nice-looking flat two-pin cable and an exceptionally plush case typically found on far more expensive IEMs.
Graph comparisons reveal the Cantor's tuning shares similarities with models like the Moondrop Blessing 2: Dusk and the AFUL Explorer, but it distinguishes itself with superior detail retrieval and dynamics. It competes impressively against significantly pricier offerings like the Elysian Annihilator in technical performance, offering a smoother presentation with slightly less sub-bass focus. The overall sonic presentation is described as sophisticated, refined, and highly engaging, creating a sense of music surrounding the listener. Minor tuning preferences aside – wishing for a bit more upper mid presence and slightly less energy around 4-6kHz and 8kHz – the core sound quality is highly regarded.
Representing strong sonic value despite its price point, the Cantor earns a high ranking for its unique and beautiful design, premium feel, and exceptional technical performance. While acknowledging excellent cheaper options like the AFUL Explorer exist, the Cantor justifies its cost with its detailed, airy presentation and overall package. It's highly recommended for those seeking a neutral, high-performing IEM, though a demo is advised given the investment. Ultimately, the AFUL Cantor is considered a treasure, fulfilling over a year of anticipation with its beautiful aesthetics and uniquely engaging sound.
Comment: A massive improvement over the prototype at canjam, a killer set for techs under US$1000, nothing else really comes close. Finally a true u12t competitor with better fit, cable, and accessories at a lower price. Crystal clear across all frequencies, extremely revealing set that slices apart the layers in the music; treble so nuanced yet pleasant that you cannot believe an all BA set is doing this Less midbass presence, overall tonality can come across as a little too lean especially with treble focus
Very well balanced with very good details and separation. Bass is punchy and fast, mids are clean with excellent instrument separation, treble is well extended and airy. Nothing stands out as offensive - no sibilance, just a very balanced signature. Plays everything I throw at it well. It's a full BA set but it is well vented - I usually have trouble with full BA sets and had no issue with the Cantor. Previously Owned
One of the most resolving IEMs. It reveals details you’ve never noticed before. Exceptional detail, neutral tuning, and great bass quality. Very revealing. Could use more bass for my taste.Gizaudio Axel original ranking
Gizaudio Axel Youtube Channel
LOW VOLUME SET. Clean, airy, and highly resolving at its price with endgame separation and detail. Low-end is quick, but lacks impact and a bit of texture. Notes are on the lighter side, not very full, male vocals are a little thin and recessed. Not very dynamic but clean and balanced, but can be borderline clinical. NOT RECOMMENDED past 60dbs or so, gets too shrill and fatiguing in the treble with a slight metallic timbre in the treble depending on the song. Doesn't scale very well and not that immersive, but overall very technical IEM, probably the best tech wise under $1000. Jays Audio Youtube Channel
The Aful Cantor presents a complex and frustrating case, offering what might be some of the most detailed and resolving performance under $1,000. The clarity, separation, and sheer resolution are described as "pretty nuts," positioning the Cantor as a potential benchmark for technical ability. It delivers a clean, smooth, light, and airy sound signature with a bass that is very fast, lean, and features a tight sub-bass rumble. At lower volumes, this presentation is highly enjoyable and non-fatiguing, making it exceptionally good for critical, quiet listening sessions where its technical prowess can shine without drawback.
However, this technical marvel comes with a significant and unusual caveat: it is physically fatiguing to the point of causing headaches and a ringing sensation in the temples after only 15-30 minutes of listening at moderate volumes (around 70-80 dB). This is not a fit or nozzle issue, but rather an inherent property of the IEM itself. The problem manifests as a shrill and overly intense quality in the treble at higher volumes, accompanied by a metallic timbre on tracks with lots of cymbals, making it unsuitable for energetic genres like K-pop, J-pop, or EDM. This shrillness is not fully solved by EQ and is believed to be related to the driver design, nozzle, or venting rather than just the tuning.
When compared to peers, the Cantor is more resolving than the warmer, fuller, and smoother Letshuoer Supernova but falls short of its natural timbre. It also can't match the Monarch MK3 as an all-rounder, which offers a more impactful bass, better vocals, and a smoother, more engaging experience. The Cantor's vocals are also a weak point, being recessed, light, and borderline thin. The final recommendation is to definitely demo these first; they are only easy to recommend for those who listen at very low volumes (under 60 dB) and are not sensitive to treble intensity, as its scaling at normal listening levels is poor.
It's super impressive but also really difficult to edge on comfort. It's not my favorite sound but good sounding. Competing well at it's price pointSuper* Review original ranking
Super* Review Youtube Channel
The AFUL Cantor lands as a flagship all-BA set with 14 balanced armatures at $800, packaged with a great-handling nylon cable and a handsome shell. The catch is fit: a very long nozzle with a metal insert demands a deep insertion, and comfort varies widely; AFUL’s stock tips are essentially required to keep that nozzle from poking and to restore some flex. Build and presentation impress, but the ear-fit can be fussy and the shells tend to stick out.
Tuning trends U-shaped: a lower-mid dip into a hefty sub-bass boost, relaxed upper mids, and noticeable upper-treble energy. When seated correctly, the set delivers crisp transients with a touch of “planar-like” pluck, good imaging, and clean BA bass that favors electronic thump over kick-drum slam; with the wrong tip or depth it swings to brittle/bright or muted. The midrange can read a bit thin, so the contrast comes more from bass/treble edges than from vocal saturation.
Compared with Symphonium Helios, both are all-BA and graph-adjacent, but Helios leans vocal-forward and smooth while Cantor is the more contrasty, fun listen that trades mid presence for excitement. Net: technically capable and competitive when dialed in, yet compromised by comfort and tip dependence. Final verdict: 3/5 stars—a better match for listeners with deep pockets and deep ears.
Thieaudio Valhalla Reviews
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.
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.
Super* Review
2025-08-19I'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.
check links for more info:Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube Channel
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.
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
check links for more info:
S tier for COD, borders A- for other titlesFresh Reviews original ranking
Fresh Reviews Youtube Channel
Aful Cantor User Reviews
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You need to be signed in to write your own reviewExcellent overall clarity and imaging, though fit demands can be a deal-breaker
Pros
Tonally balanced signature with superb detail retrievalCons
Requires deep insertion and has a large shell that may challenge fit for someWell-rounded flagship IEM with refined tuning and tech for the money.
Pros
Exceptional clarity and tonal balance that punches above its price bracket.Cons
Requires precise tip fit for best performance and subtle treble can be fatiguing at high volumes.Thieaudio Valhalla User Reviews
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