Thieaudio Monarch MK3 and Custom Art Fibae 5 use 2DD+6BA+2EST and 1DD+2BA+2Planar driver setups respectively. Thieaudio Monarch MK3 costs $1,000 while Custom Art Fibae 5 costs $1,100. Custom Art Fibae 5 is $100 more expensive. Thieaudio Monarch MK3 holds a decisive 2.4-point edge in reviewer scores (8.1 vs 5.8). Thieaudio Monarch MK3 carries a user score of 6.8. Thieaudio Monarch MK3 has significantly better bass with a 1.5-point edge, Thieaudio Monarch MK3 has significantly better mids with a 2.2-point edge, Thieaudio Monarch MK3 has significantly better treble with a 3.8-point edge, Thieaudio Monarch MK3 has significantly better dynamics with a 3.3-point edge, Thieaudio Monarch MK3 has significantly better soundstage with a 2-point edge, Custom Art Fibae 5 has slightly better details with a 0.3-point edge and Thieaudio Monarch MK3 has slightly better imaging with a 0.4-point edge.
Insights
Metric | Thieaudio Monarch MK3 | Custom Art Fibae 5 |
---|---|---|
Bass | 7.5 | 6 |
Mids | 7.7 | 5.5 |
Treble | 7.8 | 4 |
Details | 7.8 | 8 |
Soundstage | 8 | 6 |
Imaging | 7.4 | 7 |
Dynamics | 7.3 | 4 |
Tonality | 7.8 | 5.4 |
Technicalities | 7.8 | 5.2 |
Thieaudio Monarch MK3 Aggregated Review Score
Average Reviewer Scores
Custom Art Fibae 5 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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Custom Art Fibae 5 Details
Driver Configuration: 1DD+2BA+2Planar
Tuning Type: n/a
Price (Msrp): $1,100
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Thieaudio Monarch MK3 User Review Score
Average User Scores
Average User Score:
Based on 1 user reviews
6.8Cautiously Favorable
Custom Art Fibae 5 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
ACustom Art Fibae 5 Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
4.2Gaming Grade
C-Thieaudio 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.
Custom Art Fibae 5 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
C+- Generally enjoyable tonal character with some noticeable unevenness. Maintains listenability while showing room for refinement in frequency balance.
Average Technical Grade
C+- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
Thieaudio Monarch MK3 Reviews
Reviewed by: Z-Reviews
Reviewed by: Jays Audio
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
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
Custom Art Fibae 5 Reviews
Reviewed by: Nymz
Reviewed by: Jaytiss
Jaytiss Youtube Channel
Thieaudio Monarch MK3 User Reviews
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Pros
Detail retrievalCons
Recessed mids and odd timbre.Custom Art Fibae 5 User Reviews
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