Letshuoer Mystic 8 VS ThieAudio Monarch MK4
IEM Comparison: Expert & Community Scores Side-by-Side
Letshuoer Mystic 8 and ThieAudio Monarch MK4 use 8BA and 2DD+6BA+2EST driver setups respectively. Letshuoer Mystic 8 costs $1,000 while ThieAudio Monarch MK4 costs $1,149. ThieAudio Monarch MK4 is $149 more expensive. ThieAudio Monarch MK4 holds a clear 0.9-point edge in reviewer scores (8.6 vs 9.5). ThieAudio Monarch MK4 carries a user score of 9. ThieAudio Monarch MK4 has significantly better dynamics with a 3-point edge and ThieAudio Monarch MK4 has better soundstage with a 0.5-point edge.
Insights
| Metric | Letshuoer Mystic 8 | ThieAudio Monarch MK4 |
|---|---|---|
| Mids | 8 | 8 |
| Treble | 9 | 9 |
| Soundstage | 8.5 | 9 |
| Dynamics | 5 | 8 |
| Tonality | 7.6 | 8.5 |
| Technicalities | 9 | 9 |
Jaytiss Reviews Comparison
Letshuoer Mystic 8 reviewed by
8.6
Reviewer Score
Youtube Video Summary
Build and presentation hit above the price rumor: a dense, metallic shell with a sleek “cat” motif, excellent nozzle/fit, and a surprisingly handy case with a rubber lid that’s easy to pop open. The 8-BA array (Sonion + “NSBA” branded drivers) gives it pedigree, while the stock cable feels a bit chintzy despite a 4.4 mm termination and chin slider. Final pricing isn’t set (the placeholder listing is a meme), but the talk is roughly around $1,000, which frames expectations for the rest.
On tuning, Mystic 8 comes across reference-lean, very clean and clear, with extended upper-mids/treble and a lighter bass shelf. It’s a laid-back, chill listen with strong micro-detail, imaging, and stage, but the macrodynamics feel reserved and the bass lacks some rich, organic texture; hip-hop and slam-seekers may bounce. A small EQ bass lift (sub/mid-bass shelf) unlocks body and brings the set to life without breaking its neutral poise.
In context, it outclasses Cadenza 4 for naturalness and timbre, while Cadenza 12 (2024) offers richer bass but has an odd upper-mid quirk and a much higher tag. The FR echoes the Monarch Mk II; if Monarch felt light down low, Mystic 8 won’t fix that, though it crushes it on shell/build. Versus sets like Thieaudio Origin (bigger shell, weaker micro-detail), Canpur Verdandi (more bass/upper-mid bite), or DAA Mecha (fun but not neutral), Mystic 8 positions itself as a refined, mid-focused all-BA with standout technicals and an ownership appeal. As a ~$1k competitor, it’s compelling—just not the most visceral/engaging without that tasteful EQ nudge.
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ThieAudio Monarch MK4 reviewed by
2025-07-25
9.5
Reviewer Score
Youtube Video Summary
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.
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Letshuoer Mystic 8 Details
Driver Configuration: 8BA
Tuning Type: Neutral
Brand: Letshuoer Top Letshuoer IEMs
Price (Msrp): $1,000
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ThieAudio Monarch MK4 Details
Driver Configuration: 2DD+6BA+2EST
Tuning Type: Neutral with Bass Boost, U-Shaped
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $1,149
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Letshuoer Mystic 8 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A- The response is even and composed, lending itself to effortless genre hopping. Voices sit comfortably in the mix.
Average Technical Grade
S- Resolution and control feel outstanding, surfacing micro-details with ease. You'll catch studio quirks you may have missed before.
ThieAudio Monarch MK4 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S-- The response feels meticulously dialed in, combining neutrality with inviting warmth. Dynamic swings remain tonally accurate.
Average Technical Grade
S- The technical ceiling is high here, revealing fine gradations without breaking composure. Every instrument carves out its own pocket in the mix.
Letshuoer Mystic 8 User Reviews
"This is an example review"
Pros
- Example pro 1
- Example pro 2
Cons
- Example con 1
- Example con 2
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You need to be signed in to write your own reviewThieAudio Monarch MK4 User Reviews
Share your experience and build your personal ranking list.
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.Find your next IEM:
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