Thieaudio Monarch MK3 and FlipEars Legion use 2DD+6BA+2EST and 1DD+1EST+1BC driver setups respectively. Thieaudio Monarch MK3 costs $1,000 while FlipEars Legion costs $849. Thieaudio Monarch MK3 is $151 more expensive. Thieaudio Monarch MK3 holds a clear 0.6-point edge in reviewer scores (8.1 vs 7.5). Thieaudio Monarch MK3 carries a user score of 6.8. Thieaudio Monarch MK3 has better mids with a 0.7-point edge, Thieaudio Monarch MK3 has significantly better treble with a 1-point edge, Thieaudio Monarch MK3 has slightly better dynamics with a 0.3-point edge, Thieaudio Monarch MK3 has significantly better soundstage with a 1-point edge and Thieaudio Monarch MK3 has slightly better details with a 0.3-point edge.
Insights
Metric | Thieaudio Monarch MK3 | FlipEars Legion |
---|---|---|
Bass | 7.5 | 7.5 |
Mids | 7.7 | 7 |
Treble | 7.8 | 6.8 |
Details | 7.8 | 7.5 |
Soundstage | 8 | 7 |
Imaging | 7.4 | 7.5 |
Dynamics | 7.3 | 7 |
Tonality | 7.8 | 7.7 |
Technicalities | 7.8 | 7.3 |
Thieaudio Monarch MK3 Aggregated Review Score
Average Reviewer Scores
FlipEars Legion Aggregated Review Score
Average Reviewer Scores
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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FlipEars Legion Details
Driver Configuration: 1DD+1EST+1BC
Tuning Type: Bass-focused with balanced mids and treble
Brand: Flipears Top Flipears IEMs
Price (Msrp): $849
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Thieaudio Monarch MK3 User Review Score
Average User Scores
Average User Score:
Based on 1 user reviews
6.8Cautiously Favorable
FlipEars Legion User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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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
7.5Gaming Grade
AFlipEars Legion Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.4Gaming Grade
BThieaudio Monarch MK3 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
A- Good technical performance. Clear separation and decent detail retrieval across various tracks. Soundstage shows reasonable width and depth.
FlipEars Legion 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
A-- Competent technical presentation. Handles separation and detail well in most tracks, with modest soundstage and acceptable imaging capabilities.
Thieaudio Monarch MK3 Reviews
Reviewed by: Z-Reviews
Reviewed by: Jays Audio
Jays Audio Youtube Channel
Reviewed by: Jaytiss
Jaytiss Youtube Channel
Reviewed by: Shuwa-T
Reviewed by: Gizaudio Axel
Gizaudio Axel original ranking
Gizaudio Axel Youtube ChannelReviewed by: Smirk Audio
Reviewed by: Tim Tuned
2025-08-14Tim Tuned Youtube Channel
Reviewed by: Precogvision
Precogvision Youtube Channel
Reviewed by: Nymz
Reviewed by:
Fresh Reviews
FlipEars Legion Reviews
Reviewed by: Smirk Audio
Reviewed by: Jaytiss
Jaytiss Youtube Channel
Reviewed by: Jays Audio
Jays Audio Youtube Channel
Reviewed by: IEMRanking AI

The FlipEars Legion makes a commanding entrance with its striking Roman legionnaire-inspired design, featuring jewelry-cast rose-plated brass faceplates hand-painted by master artisans in Bulacan, Philippines, ensuring each unit is a unique masterpiece. While the substantial resin housings may challenge smaller ears, the included Eletech Baroque tips and pliable cable contribute to a surprisingly secure and comfortable fit over time. Unboxing feels luxurious, with a premium leather case and meticulous packaging underscoring FlipEars' commitment to craftsmanship.
Sonically, the Legion leverages its innovative tribrid driver system to deliver thunderous, tactile bass via a custom dynamic driver and EarQuake bone conduction unit, creating visceral sub-bass rumble without muddying the midrange. The midrange remains lush and articulate, presenting vocals with natural warmth and instruments with rich texturing, while the SPARK electret tweeter adds refined, fatigue-free sparkle to the highs. This synergy results in a cohesive, immersive sound signature that prioritizes musical engagement over analytical sharpness, making complex tracks feel both powerful and nuanced.
Technically, the Legion punches above its price point, boasting a holographic soundstage with precise instrument placement and exceptional layering that rivals models costing twice as much. Its imaging is pinpoint accurate, rendering subtle ambient cues and dynamic shifts with effortless clarity, while the bone conduction driver enhances physicality and depth without sacrificing control. Though its bass-forward tuning might not suit treble purists, the Legion excels as a reference-grade all-rounder for those seeking technical prowess paired with relentless musicality.
Thieaudio Monarch MK3 User Reviews
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Pros
Detail retrievalCons
Recessed mids and odd timbre.FlipEars Legion User Reviews
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