Aful Cantor VS Thieaudio Monarch MK3
IEM Comparison: Expert & Community Scores Side-by-Side
Aful Cantor and Thieaudio Monarch MK3 use 14BA and 2DD+6BA+2EST driver setups respectively. Aful Cantor costs $800 while Thieaudio Monarch MK3 costs $1,000. Thieaudio Monarch MK3 is $200 more expensive. Thieaudio Monarch MK3 holds a clear 0.5-point edge in reviewer scores (7.7 vs 8.2). User ratings place Aful Cantor at 8.5 and Thieaudio Monarch MK3 at 6.8. Aful Cantor has better bass with a 0.5-point edge, Aful Cantor has significantly better treble with a 1-point edge, Thieaudio Monarch MK3 has significantly better dynamics with a 1.3-point edge, Aful Cantor has slightly better soundstage with a 0.3-point edge, Aful Cantor has significantly better details with a 1.3-point edge and Aful Cantor has significantly better imaging with a 1.1-point edge.
Insights
| Metric | Aful Cantor | Thieaudio Monarch MK3 |
|---|---|---|
| Bass | 8 | 7.5 |
| Mids | 7.8 | 7.7 |
| Treble | 8.8 | 7.8 |
| Details | 9 | 7.8 |
| Soundstage | 8.3 | 8 |
| Imaging | 8.5 | 7.4 |
| Dynamics | 6 | 7.3 |
| Tonality | 8 | 7.8 |
| Technicalities | 9.1 | 7.9 |
Aful Cantor Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
7.7Strongly Favorable
Thieaudio Monarch MK3 Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.2Very Positive
Reviews Comparison
Aful Cantor reviewed by Jaytiss
8.8
Reviewer Score
Youtube Video Summary
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.
Jaytiss Youtube Channel
Buy Aful Cantor on HiFiGO
Ad
Price: $687
Buy Aful Cantor on HiFiGO
Thieaudio Monarch MK3 reviewed by Jaytiss
8.5
Reviewer Score
Jaytiss Youtube Channel
Buy Thieaudio Monarch MK3 on Linsoul
Ad
Price: $999
Buy Thieaudio Monarch MK3 on Linsoul
Aful Cantor reviewed by Z-Reviews
8.5
* score rescaled + normalized
Youtube Video Summary
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.
Z-Reviews Youtube Channel
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
Aful Cantor reviewed by Shuwa-T
8.3
Reviewer Score
Thieaudio Monarch MK3 reviewed by Shuwa-T
8.2
Reviewer Score
Aful Cantor 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 ChannelAful Cantor reviewed by Jays Audio
7
Reviewer Score
Youtube Video Summary
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.
Jays Audio Youtube Channel
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
Aful Cantor reviewed by Head-Fi.org
8.4
* score rescaled + normalized
Thieaudio Monarch MK3 reviewed by Head-Fi.org
9
* score rescaled + normalized
Aful Cantor (more reviews)
Aful Cantor reviewed by Kois Archive
8.4
Reviewer Score
Youtube Video Summary
AFUL Cantor is a 14-BA, ~$800 set that looks premium and shows off its acoustic maze tubing through a semi-transparent shell, with faceplates in Star Knight or Marine Echo. The fit can be tricky: a long metal nozzle wants a deep insertion, and short tips won’t seal; longer tips like SoftEars Ultra Clear or Dunu S&S keep the nozzle covered and the tonality stable. The stock nylon cable feels nice but is very microphonic, making a swap advisable. Measurement quirks from shallow insertion are misleading—proper deep fit removes the apparent treble spike and reflects what’s actually heard.
Tuning follows the AFUL house sound: a mild U-shape, fairly neutral with a brightish tilt. The maze tech gives BA bass surprising decay and texture, with neutral mid-bass and a touch more sub-bass focus—close to a DD feel, if not identical. Mids sit clean; female vocals sound natural and sweetened by the steady rise through the upper-mids, while a gentle ~300 Hz dip makes male vocals and lower-octave instruments a bit lean. Treble is smooth yet energetic, with standout extension (impressively achieved without ESTs); it hovers near the upper tolerance for brightness but remains controlled with the right tips.
Technical performance is where Cantor shines: top-tier resolution, precise imaging, and a notably wide soundstage—great for detail retrieval and gaming, where positional cues pop (think footstep clarity in FPS titles). Versus Performer 7, Cantor trades P7’s fuller low-mids and better male vocals for cleaner female vocals and a more even treble. Against 64 Audio U12t, Cantor’s bass quality impresses, its mids differ (U12t’s 3 kHz dip adds sweetness but can feel odd), and Cantor’s treble sounds smoother; both resolve at a very high level, with Cantor edging imaging and stage width. Overall: an excellent but not universal pick—cable microphonics, deep-fit demands, and slightly thin lower mids mean careful matching to preferences. For detail lovers with female-vocal libraries who tolerate a brighter treble, it earns a one-star recommendation; others may prefer alternatives in this bracket.
Kois Archive Youtube Channel
Aful Cantor reviewed by Audionotions
8
Reviewer Score
Aful Cantor reviewed by Audio Amigo
6
* score rescaled + normalized
Youtube Video Summary
AFUL’s $800 flagship pushes hard on engineering: 14 balanced armatures, a five-way network, 3D-printed shells, and the brand’s acoustic maze that coaxes unusually textured, dynamic-driver-like bass out of an all-BA setup. Packaging is “classic AFUL”—nice case, multiple tip sets, cleaning brush—but light for the price, and the cloth-sheathed cable, while beautifully machined and very low resistance, is highly microphonic. The big talking point is the metal nozzle extension: tips must be pushed down to the rim for a deep fit, which optimizes tonality and treble smoothness. Comfort varies wildly by ear; some report irritation, and the long nozzle feels fragile if dropped.
Sonically, this is AFUL’s house sound elevated: a slightly warm-neutral balance with clean, meaty lows, natural mids, and an upper-mid/treble that sits right on the edge—silky and detailed with a deep fit, but bright and fatiguing if worn shallow or with the wrong tips. It is extremely revealing of mastering quality, rewarding good recordings with elite microdetail, imaging, and a huge, tall stage that can hang with far pricier sets. A mild impedance adapter (or higher-Z source) can warm the tone and shave some air, though at a small cost to sparkle and openness.
Against AFUL’s own lineup, the closest kin is the Performer 7: similar flavor, less resolution and scale, but a far better value. Cantor is the brand’s “thesis statement”—the most complete execution of its tuning—with true summit-fi technicals at a mid-summit price. Still, it carries caveats: fit sensitivity, that microphonic cable, and accessory stinginess. Recommended only if the budget is comfortable, a deep, stable fit is achievable and comfortable for long sessions, and AFUL’s warm-neutral house sound already hits the spot; for everyone else, the P7 or Explorer make safer picks.
Audio Amigo Youtube Channel
Aful Cantor reviewed by Super* Review
6*
* score rescaled + normalized
Youtube Video Summary
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.
Super* Review original ranking
Super* Review Youtube ChannelThieaudio Monarch MK3 (more reviews)
Thieaudio Monarch MK3 reviewed by Yifang
8.5
Reviewer Score
Thieaudio Monarch MK3 reviewed by Smirk Audio
7.9
Reviewer Score
Thieaudio Monarch MK3 reviewed by Tim Tuned
7.5
Reviewer Score
Tim Tuned Youtube Channel
Thieaudio Monarch MK3 reviewed by Precogvision
7.3
Reviewer Score
Precogvision Youtube Channel
Thieaudio Monarch MK3 reviewed by Nymz
7.1
Reviewer Score
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
Aful Cantor Details
Driver Configuration: 14BA
Tuning Type: Vocal-focused
Brand: AFUL Top AFUL IEMs
Price (Msrp): $800
Support our free service! Buying through our affiliate links costs you nothing extra:
Thieaudio Monarch MK3 Details
Driver Configuration: 2DD+6BA+2EST
Tuning Type: U-Shaped
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $1,000
Support our free service! Buying through our affiliate links costs you nothing extra:
Aful Cantor User Review Score
Average User Scores
Average User Score:
Based on 2 user reviews
8.5Excellent
Thieaudio Monarch MK3 User Review Score
Average User Scores
Average User Score:
Based on 1 user reviews
6.8Cautiously Favorable
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
8.3Gaming 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
7.6Gaming Grade
AAful Cantor Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- The tonal balance is polished and expressive, highlighting emotion without sacrificing accuracy. It keeps emotional weight without sacrificing accuracy.
Average Technical Grade
S- It resolves with authority, pairing lightning-fast transients with holographic staging. Ambient cues wrap around with ease.
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.
Aful Cantor User Reviews
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewWell-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.Excellent 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 someThieaudio 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:
IEM Finder Quiz
newIEM Comparison Tool
newVS