Thieaudio Monarch MK3 and I/O Volare use 2DD+6BA+2EST and 1DD+4BA+4EST driver setups respectively. Thieaudio Monarch MK3 costs $1,000 while I/O Volare costs $600. Thieaudio Monarch MK3 is $400 more expensive. Thieaudio Monarch MK3 holds a decisive 1.1-point edge in reviewer scores (8.1 vs 7). 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 1.5-point edge, Thieaudio Monarch MK3 has significantly better dynamics with a 2.3-point edge, Thieaudio Monarch MK3 has better soundstage with a 0.8-point edge, I/O Volare has slightly better details with a 0.3-point edge and I/O Volare has better imaging with a 0.6-point edge.
Insights
Metric | Thieaudio Monarch MK3 | I/O Volare |
---|---|---|
Bass | 7.5 | 7.5 |
Mids | 7.7 | 7 |
Treble | 7.8 | 6.3 |
Details | 7.8 | 8 |
Soundstage | 8 | 7.3 |
Imaging | 7.4 | 8 |
Dynamics | 7.3 | 5 |
Tonality | 7.8 | 7.2 |
Technicalities | 7.8 | 6.9 |
Thieaudio Monarch MK3 Aggregated Review Score
Average Reviewer Scores
I/O Volare 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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I/O Volare Details
Driver Configuration: 1DD+4BA+4EST
Tuning Type: n/a
Brand: I/O Top I/O IEMs
Price (Msrp): $600
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Thieaudio Monarch MK3 User Review Score
Average User Scores
Average User Score:
Based on 1 user reviews
6.8Cautiously Favorable
I/O Volare User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
No user reviews yet. Be the first one who writes a review!
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
AI/O Volare Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6Gaming 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.
I/O Volare Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A-- Pleasing tonal balance with good technical control. Minor quirks present but not distracting. Demonstrates decent genre versatility.
Average Technical Grade
B+- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
Thieaudio Monarch MK3 Reviews
Better low-end texture and overall more engaging than MK2, but lacks the mid-range/vocal magic, so depending on your preference either is great. Still TOTL tech like MK2. Great all-rounder. Jays Audio Youtube Channel
Fatiging at times for me, too fun at times. Jaytiss Youtube Channel
Better bass response compared to the mk2 Trades off the lush midrange in place of a cleaner sounding, almost boring midrange
I prefer the Monarch MK II for its tonality, vocals, and timbre, but I get why some prefer the MK III. More bass, treble, and detail than the Monarch MK II. The vocal magic of the Monarch MK II is gone.Gizaudio Axel original ranking
Gizaudio Axel Youtube Channel
Elevated, well-textured mid-bass. Pleasant mids. Elevated upper-treble may be pesky to some.
Tim Tuned
2025-08-14MK2 but more fun and more V-shape Not as natural in timbre Tim Tuned Youtube Channel
Still perplexingly poor bass performance, but improves upon the Monarch MKII's treble extension noticeably. Precogvision Youtube Channel
An improvement in the bass and treble department over the Mk2, but without the same special sauce in the mid-range and with some imaging problems still.
I/O Volare Reviews
Balanced subbass-focused tuning that borders the fine line between technical and boring, well extended treble that remains free of sibilance The lower midrange does not sound the most natural despite how funny squiggly lines look
Best Harman IEM under $600 (my unit is less harman), smooth and natural, great layering and tech, bass texture could be better/not as good as Oracle MK3, but overall very balanced and great all-rounder, also, amazing unboxing and accessories Jays Audio Youtube Channel
Nice overall quality. Jaytiss Youtube Channel
If you are looking for the most bang for your buck in terms of the costs of materials - this is it. But not the most interesting sound.Super* Review original ranking
Super* Review Youtube Channel
Thieaudio Monarch MK3 User Reviews
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewIf this is what 'fun' sounds like, I ain't about it.
Pros
Detail retrievalCons
Recessed mids and odd timbre.I/O Volare User Reviews
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Pros
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Cons
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