ThieAudio Monarch MK4 VS NiceHCK Rockies
IEM Comparison: Expert & Community Scores Side-by-Side
ThieAudio Monarch MK4 and NiceHCK Rockies use 2DD+6BA+2EST and 1DD+2BA+2EST driver setups respectively. ThieAudio Monarch MK4 costs $1,149 while NiceHCK Rockies costs $499. ThieAudio Monarch MK4 is $650 more expensive. ThieAudio Monarch MK4 holds a clear 0.5-point edge in reviewer scores (8.6 vs 8.1). User ratings place ThieAudio Monarch MK4 at 9 and NiceHCK Rockies at 9. NiceHCK Rockies has slightly better mids with a 0.3-point edge, ThieAudio Monarch MK4 has slightly better treble with a 0.4-point edge, ThieAudio Monarch MK4 has better dynamics with a 0.6-point edge and ThieAudio Monarch MK4 has better soundstage with a 0.6-point edge.
Insights
| Metric | ThieAudio Monarch MK4 | NiceHCK Rockies |
|---|---|---|
| Bass | 8.5 | 8.6 |
| Mids | 8.3 | 8.7 |
| Treble | 8.7 | 8.3 |
| Details | 8.6 | 7.5 |
| Soundstage | 9 | 8.4 |
| Imaging | 8.6 | 7.5 |
| Dynamics | 8 | 7.4 |
| Tonality | 8.5 | 8.5 |
| Technicalities | 8.6 | 8.7 |
ThieAudio Monarch MK4 Aggregated Review Score
Average Reviewer Scores
NiceHCK Rockies Aggregated Review Score
Average Reviewer Scores
ThieAudio Monarch MK4 Details
Driver Configuration: 2DD+6BA+2EST
Tuning Type: Harman with bass switch
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $1,149
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NiceHCK Rockies Details
Driver Configuration: 1DD+2BA+2EST
Tuning Type: Neutral with sub-bass boost
Brand: NiceHCK Top NiceHCK IEMs
Price (Msrp): $499
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ThieAudio Monarch MK4 User Review Score
Average User Scores
Average User Score:
Based on 1 user reviews
9Outstanding
NiceHCK Rockies User Review Score
Average User Scores
Average User Score:
Based on 2 user reviews
9Outstanding
ThieAudio Monarch MK4 Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
8.8Gaming Grade
S-NiceHCK Rockies Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
8.4Gaming Grade
A+ThieAudio Monarch MK4 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.
NiceHCK Rockies 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.
ThieAudio Monarch MK4 Reviews
Jaytiss
2025-07-25
9.5
Reviewer Score
Detailed fun, rich bass. It's hard to fault. Jaytiss Youtube Channel
Priced between $1,150 and $1,300 depending on custom faceplate options like the butterfly design shown, the Thieaudio Monarch MK IV boasts exceptional build quality with a large but well-contoured titanium shell offering a secure and comfortable fit. Key features include the innovative rumble switch for adjustable bass levels on the fly, a durable two-pin connector, and a solid feel that inspires confidence in longevity. While the included accessories are considered fair but unexciting, the shell's customization potential and rugged construction are major highlights.
Sonically, the Monarch MK IV delivers a detailed, exciting, and clean sound signature that stands as the best in the Monarch lineage. The rumble switch provides two distinct profiles: the red switch (no rumble) offers a balanced, tactful bass presentation, while the gold switch (rumble) adds a satisfying sub-bass shelf ideal for genres like hip-hop. Treble performance is notably improved over the MK III, though a 10k peak requires careful ear tip selection for some listeners. It trades blows with flagships like the $3,000 Annihilator (better sub-bass focus) and the $1,800 Elysian Apostle (more vocal forward), often matching or exceeding their technicalities while offering its unique tuning flexibility.
Scoring a top-tier 9.8, the Monarch MK IV earns its place through a compelling combination of premium build, the highly functional rumble switch, and outstanding sound quality that feels both special and refined. While acknowledging the high price, it represents significant value against competitors like the $2,000 Thieaudio Valhalla or the fiddly Grand Maestro, offering a feature-rich, durable, and sonically excellent package that justifies its position as a current summit-fi favorite.
Fresh Reviews
2025-08-19
9*
* The score of this reviewer influences only the Gaming Score
The ThieAudio Monarch MK4 is a premium IEM that earns a spot in the S-tier for competitive gaming, offering a significant upgrade over its predecessor and A-tier competitors. It features a unique rumble mode switch that adds a satisfying low-end punch and weight without muddying the detailed, reference-grade tuning of the standard mode. While the CNC aluminum build feels exceptional, the design is a bit bulky and heavy, which can lead to some comfort issues during very long, multi-hour sessions.
For gaming, the technical performance is nothing short of phenomenal. The imaging is holographic and the depth perception is absolutely exceptional, providing a critical advantage in tactical shooters like VALORANT where tracking footsteps through walls becomes incredibly precise. The wide and deep soundstage pushes sounds off the player, creating an immersive experience. While rumble mode is preferred for titles like Call of Duty, the standard mode's clean and detailed signature shines in battle royales like Apex Legends, though the 2-4k range can make gunfire a bit shouty at higher volumes.
This is also an absolutely amazing set for music, delivering an elevated level of technicality and resolution. The standard mode offers a fast, clean, and neutral listen with great detail retrieval, while the rumble mode provides a weightier, more engaging bass profile for tracks that benefit from the extra warmth and punch. Ultimately, it's a very high-end IEM that delivers a top-tier experience for both competitive gaming and critical music listening.
Jays Audio
2025-07-02
9
Reviewer Score
Smooth, clean, balanced, and slightly airy in the balance switch. Goes from a clean all-rounder to a warm/bassy all-rounder. Great tech. Basically a cheaper Prestige LTD with more tuning options. "Endgame" for most people, but the case is SHIT. Jays Audio Youtube Channel
The Thieaudio Monarch MK IV presents two distinct tuning options, elevating its versatility. The balanced switch delivers a clean, smooth, and slightly airy presentation, offering a refined all-rounder sound that's very detailed, well-layered, and resolving – essentially a direct upgrade to predecessors like the Monarch MK3 and Top Pro, with slightly more treble detail and air. Conversely, the bass switch provides a significantly fuller, warmer low end with punchy, well-textured bass and a tamer upper midrange, addressing criticisms of thinness in earlier models and offering a specialized, engaging listen for bass-heavy genres.
Technically, the MK IV sits comfortably in the $1,000 tier, offering a slight bump in detail retrieval, refinement, and smoothness over the MK3 and MK2, comparable to the Dunu Glacier and Prestige LTD. While not a giant leap, the dual tuning options make it arguably a better all-rounder than single-tuning competitors; the balance switch excels with acoustic, classical, and cleaner genres, while the bass switch shines with rock, metal, R&B, and pop. Build quality is improved with an all-metal shell, though the flimsy cardboard case is a notable disappointment. Vocals are smooth, balanced, and enjoyable, though sets like the Monarch MK2, Mystic 8, RSV, or Arcanis offer more forwardness or unique character. Bass quality is excellent for most, though pure bass enthusiasts might prefer models like the Thieaudio Origin for its unique texture.
Ultimately, the Monarch MK IV is a highly compelling endgame option for the vast majority. It combines strong technical performance with exceptional versatility through its two excellent tunings, covering a wide genre spectrum effectively. While value-focused options like the Top Pro, Volare, or Mega5EST offer similar technicalities at lower prices, the MK IV's refinement, tuning flexibility, and slightly superior performance make it easy to recommend. It allows listeners to leave the hobby satisfied, provided they resonate with its sound – though chasing marginally better flagships involves steep diminishing returns. The king might be debatable, but the MK IV is undoubtedly a very solid $1,000 contender.
8.7
Reviewer Score
check links for more info:Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube Channel
Monarch MK IV lands as a top-three set, sitting just behind the PMG APXSE and CP622B, and it earns that spot with an evolutionary design: a single, tactile rumble switch that can be flipped while the IEM is in-ear—no fiddly pins, no tools. In stock (red) mode it’s a vocal-friendly tuning with restrained mid-bass; engage the switch and the low end lifts, adding note weight without smearing the mids. The shell is metal, build is tight, and all the BAs are Sonion, signaling premium parts and execution.
Low-end performance nails both 808 drops and classic rock kick drums (“When the Levee Breaks”) with satisfying slam—better with the switch on—while bass guitar texture (pulls, plucks, string ring) stays articulate into the lower treble. Vocals are clean in stock mode and gain a pleasing husk and density with rumble engaged, making artists like Neil Young and Mark Knopfler pop. Upper mids/treble avoid glare and long-term fatigue, turning this into a true “sofa set” for hours-long sessions.
At $1,400 it competes shockingly well against far pricier summit-fi gear—no veil, no masking, just balanced resolution and a flip-to-taste bass shelf. Compared to Valhalla, the MK IV’s instant two-flavor flexibility pushes it ahead on value; bone-conduction curios like Origin feel more niche by contrast. Net: the best ThieAudio to date, an easy recommendation, and likely the new #3 overall—thanks to that simple, game-changing rumble switch that future proofs the tuning.
Tim Tuned
2025-08-14
8
Reviewer Score
check links for more info: Tim Tuned Youtube Channel
Super* Review
2025-08-19
7*
* score normalized
Kind of an impressive sound signature. A little bit dry in its bass presentation. Sounds a little bit clinical with its stock tuning. Maybe a bit too much bass in rumble mode. But it's kind of nice to have both tonalities in one IEM.Super* Review original ranking
Super* Review Youtube Channel
ThieAudio Monarch MK4 comes in at $1,150 with a tribrid array—2 DD + 6 BA + 2 EST—a chunky stock cable with friction-fit swappable terminations, and a genuinely excellent, in-ear-operable “Rumble” bass switch. The new metal shells look tidy, but the fit is very large; on average ears it tends to sit a bit out of the concha and feel unstable (seal is doable, comfort is mediocre). Build details like the firm chin slider are nice, yet the cable bulk and loose termination retention detract from daily use.
Tonally, stock MK4 aims for a clean-neutral presentation with a meaty, sub-bass-focused lift, lively upper registers, and excellent extension. The flip side is a slightly dry / clinical character with a hint of treble hardness that can leave notes feeling a bit bodyless. Engaging Rumble mode thickens the curve from ~300 Hz down—more warmth and weight, bordering on “gigabass” territory—making the set fuller and more fun, though arguably too bassy for purists. Staging and imaging are solid, and resolution is high, but macro-dynamics land behind peers; compared side-by-side, sets like Dunu Glacier and 64 Audio U4S feel punchier, while Valhalla sounds warmer, smoother, and more effortlessly resolving.
Overall, MK4 is a technically capable tribrid with two distinct tunings on tap—clinical-clean stock and warmed-up Rumble—but it’s held back by fit size, cable quirks, and that slightly wooden bass texture. For listeners chasing a bright-leaning neutral with legit sub-bass reach (and who can accommodate a big shell), it’s a compelling try; in this lineup, though, it settles at a three-star recommendation next to more engaging or comfortable alternatives.
IEMRanking AI
2025-07-02
9.2
Reviewer Score
The Thieaudio Monarch MK4 introduces a practical tuning switch, letting users flip between Standard for a neutral, detailed profile and Rumble for a pronounced 3dB sub-bass boost. This flexibility handles diverse genres well, though the thick-shelled aluminum build—while durable—may challenge those with smaller ears. While the modular cable works reliably, its brown "Chocolate" design clashes aesthetically with the IEMs, and the included case feels disappointingly flimsy for the price .
Sound-wise, Standard mode delivers clean mids and airy treble suited for acoustic or jazz, while Rumble mode adds visceral depth to electronic or hip-hop without overwhelming vocals. Technical performance impresses with a wide stage and sharp layering, though the diffuse imaging occasionally lacks density. While not the absolute pinnacle in resolution for its tier, the MK4’s tuning versatility makes it a compelling all-rounder—just don’t expect specialist-level vocal intimacy .
NiceHCK Rockies Reviews
Jaytiss
2025-09-03
9.5
Reviewer Score
Trebble so nice. Feels faultless and amazing. Jaytiss Youtube Channel
NiceHCK Rockies lands in the ~$500 bracket with a 1DD+2BA+2EST setup and a surprisingly premium package. The hollow resin shell feels solid, with a metal nozzle, slightly recessed 2-pin, good isolation, and comfy fit. The swappable-termination cable is thick, pliant, and lays flat—no chin slider out of the box, but easy to add—and the excellent case and tip kit push the accessories into “above class” territory.
Tonally, Rockies goes for tight, controlled bass and a natural midrange, capped by upper-treble that’s sparkly yet refined—detailed without getting shouty or brittle. The graph reads largely flat with a tasteful treble lift, translating to a clean, clear presentation that stays engaging rather than fatiguing. It comes across as an “instant classic” tuning: lively, airy, but still grounded.
Compared with brand siblings (DB2 too upper-midsy; F1 Pro/NX8 fine but not special), Rockies feels like the step up. Versus peers, it splits the difference: more air and delicacy than RSV MK2 (which is bassier/darker), less sizzle than sets that chase treble for effect, and broadly similar endgame vibes to “good” units of Mega5-EST—variance there being the rub. Net: a high-value pick at its price, worthy of a Gold Star—not a universal “benchmark,” but a sweet, natural, clear listen that many will prefer, especially with the standout accessories.
Drew / Audionotions
2025-09-09
8.5
Reviewer Score
My favorite take on the JM1 meta so far. Bass tuning is well done with adequate weight and punch - it's not standout but it will do the job. Silky smoooooth and rich mids with very good clarity. Treble that leans slightly bright but is never sharp. Very good transient response, especially with things like plucking sounds and the like. Renders strings very well. Some people might find the treble a bit forward but I don't personally find this to be an issue, except on certain tracks. It's an IEM that is hard to fault and one that will handle anything you throw at it well. Very suitable as a one-and-done IEM. Previously Owned
Jays Audio
2025-08-28
8.5
Reviewer Score
Balanced, clean, airy, with a slight treble emphasis, good EST implementation, great overall package and accesories at the price. Similar to TOP PRO but with ESTs and not as vocal centric. Easy rec if you want something balanced and airy. Jays Audio Youtube Channel
The NiceHCK Rockies have a balanced tuning with standout treble extension from its ESTs. Vocals are tamer with a cut in the upper mids, trading sparkle-forward presence for a smoother, airier presentation; staging feels more open because bass and vocals sit slightly back, while cymbal decay lingers with a pleasing airiness. Technical performance is very good for the price—punching above many $500–$600 peers—and the unboxing/accessories package adds to the overall value.
Low end is grounded and tidy rather than slammy; texture and separation are solid, but this isn’t for bassheads or those wanting vocal-forward excitement (sets like Top Pro or Volare cover that better). The Rockies excel with rock/metal/indie/classical where the extra air, layering, and controlled upper energy shine; they scale best at mid volumes, and tip rolling should avoid options that over-boost or dull the treble—the stock tips already hit a sweet spot. Net: a confident recommendation at ~$500–$600 for listeners prioritizing treble quality, detail, and spaciousness, with the main trade-off being a more restrained bass and laid-back vocal emphasis.
Tim Tuned
2025-07-16
8.5
Reviewer Score
The Mega5EST but a slight bit more technical and bright Tim Tuned Youtube Channel
Super* Review
2025-09-13
6*
* score normalized
The NiceHCK Rockies is a $500 tribrid (1DD+2BA+2EST) tuned almost identically to the Mega 5 EST but with slightly less bass and a touch more lower treble, yielding tighter bass and clearer separation at the cost of a drier, slightly brittle tone; build is solid, though the stiff, slider-less cable and average fit detract. Overall it’s good, but the warmer Mega 5 EST is preferred, and the Rockies lands at 3/5.Super* Review original ranking
Super* Review Youtube Channel
NiceHCK Rockies lands as a $500 tribrid (1DD+2BA+2EST) that mirrors the Mega5-EST’s tuning with subtle tweaks. The unboxing is generous—three styles of tips (including AET07-style and tacky “medical” silicone), a large puck case, and a swappable 3.5/4.4 screw-lock plug. Build feels premium with a real pietersite stone faceplate; fit is comfortable but shell geometry is generic, so stability depends on tips. The stock cable looks nice but is stiff and, notably, has no chin slider.
Sonically, Rockies follows a tilted diffuse-field / “new meta” balance with slightly less bass and a touch more lower-treble than Mega5-EST—on the order of ~1 dB each way. That shift tightens the low end and improves separation/imaging, making the set feel more technical; however, it also trims warmth and depth, leaving the presentation a bit dry/brittle at times. Bass quality is clean and controlled rather than showy; treble reads clear without obvious harshness on the 711 rig readout, though it can edge lean.
Against peers, Mega5-EST stays the easier, warmer listen with slightly “thuddier” bass, while DUNU’s Brain Dance is the pick for maximum excitement and staging (more clinical up top). Moondrop x Crinacle Dusk (analog use) offers stronger imaging and notably satisfying bass execution at a lower price. Rockies ends up a very good, balanced all-rounder that some will prefer over Mega5-EST for its tidier bass and clarity, but the trade for brightness and dryness is real—final verdict: 3/5.
IEMRanking AI
2025-07-19
7.5
Reviewer Score
The NiceHCK Rockies is a five-driver tribrid using 1DD + 2 Knowles BA + 2 Sonion EST in a resin shell with Pietersite stone faceplates. Specs list a detachable 0.78 mm 2-pin cable with swappable 3.5/4.4 mm plug, 9.8 Ω impedance and 121 dB/Vrms sensitivity, indicating easy driveability from portable sources.
Early third-party coverage characterizes the tuning as neutral with a sub-bass lift and smooth, controlled treble, with 5128 measurements available via Crinacle’s public database and a review on Hangout’s channel. These impressions emphasize strong imaging and detail without obvious harshness when recordings are clean.
At an MSRP of $499 (with a short launch price of $469), value hinges on preference for an energetic, U/neutral-with-bass presentation; listeners sensitive to upper energy may find mids a touch lean on certain material, as some impressions note. In short, Rockies trades a warm mid focus for sub-bass reach, treble resolution, and a stable stage that suits modern pop, electronic, and large-scale orchestral.
ThieAudio Monarch MK4 User Reviews
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You need to be signed in to write your own reviewImpressive sound experience and the built quality is finally worth the price (compared to Mk3). I "upgraded" my Mk3 and I am happy with it.
Pros
I don't regret buying those. I would not describe them as a huge upgrade to the Mk3 in terms of sound, but it is noticeable. Built quality and overall experience much more premium than MK3.Cons
The designs of the shells are a matter of taste.NiceHCK Rockies User Reviews
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You need to be signed in to write your own reviewA lively rendition of the diffuse field tuning that tilts slightly upward for additional clarity. Tastefully bass-boosted DD, clear and clean BA mids with slightly recessed vocals, and standout EST treble presence make an engaging JM-1 all-rounder.
Pros
Lively, unique take on neutral with bass boost. Excellent detail.Cons
An ever so slight increase in bass shelf could provide more dynamicism.Lively tribrid with engaging low end and airy detail that still sounds cohesive. Strong technical performance for the price without losing musicality.