Thieaudio Monarch MK3 VS Letshuoer Mystic 8

IEM Comparison: Expert & Community Scores Side-by-Side

Thieaudio Monarch MK3 and Letshuoer Mystic 8 use 2DD+6BA+2EST and 8BA driver setups respectively. Thieaudio Monarch MK3 costs $1,000 while Letshuoer Mystic 8 costs $1,000. Letshuoer Mystic 8 holds a slight 0.1-point edge in reviewer scores (8.5 vs 8.6). Thieaudio Monarch MK3 carries a user score of 6.8. Letshuoer Mystic 8 has significantly better mids with a 1-point edge, Letshuoer Mystic 8 has significantly better treble with a 2-point edge, Thieaudio Monarch MK3 has significantly better dynamics with a 3-point edge and Letshuoer Mystic 8 has better soundstage with a 0.5-point edge.

Insights

Jaytiss Score
Thieaudio Monarch MK3
8.5 /10
Jaytiss Score
Letshuoer Mystic 8
8.6 /10
Score gap: 0.1
Metric Thieaudio Monarch MK3 Letshuoer Mystic 8
Mids 7 8
Treble 7 9
Soundstage 8 8.5
Dynamics 8 5
Tonality 7.5 7.6
Technicalities 7 9
Take these comparisons with a grain of salt—we don't have enough Thieaudio Monarch MK3 and Letshuoer Mystic 8 reviews saved yet to provide an unbiased result.

Jaytiss Reviews Comparison

Letshuoer Mystic 8 reviewed by

Jaytiss 8.6 Reviewer Score
A Tuning
S Tech
Lack Bass Richness, but is a beautiful set.
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.

Mids: A+ Treble: S Dynamics: C+ Soundstage: S-

Jaytiss original ranking

Jaytiss Youtube Channel
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Thieaudio Monarch MK3 Details

Driver Configuration: 2DD+6BA+2EST

Tuning Type: U-Shaped

Brand: ThieAudio Top ThieAudio IEMs

Price (Msrp): $1,000

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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 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-
  • You get a controlled, composed performance, marrying decent clarity with a still-modest sense of space. A safe technical performer for the price bracket.
Mids A-
The mids sound lush and articulate, capturing emotion effortlessly. Strings and keys shimmer with realism.
Treble A-
Treble performance is excellent—airy, extended, and beautifully controlled. It reveals subtle studio ambiance.
Dynamics A+
It captures both explosive hits and delicate shifts with lifelike realism. Micro-dynamics shimmer through the mix.
Soundstage A+
Three-dimensional layering becomes effortless, placing performers on a lifelike virtual stage. Venue ambience wraps around convincingly.

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.
Mids A+
It offers a luxurious, resolving midrange that captures micro-detail beautifully. Every vocal inflection is captured.
Treble S
This is reference-grade treble, combining flawless clarity with absolute naturalness. It captures the faintest shimmer with grace.
Dynamics C+
You get reliable macrodynamics, with micro shifts that remain only adequate. A reliable performer for most tracks.
Soundstage S-
Exceptional soundstage with holographic imaging that lets instruments float naturally around you. It paints a holographic bubble around you.

Thieaudio Monarch MK3 User Reviews

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Makavelian
6.8

If this is what 'fun' sounds like, I ain't about it.

Pros
Detail retrieval
Cons
Recessed mids and odd timbre.

Letshuoer Mystic 8 User Reviews

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0.0

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