Thieaudio Oracle MKIII and OpenAudio Mercury use 2DD+2BA+2EST and 1DD+4BA driver setups respectively. Thieaudio Oracle MKIII costs $589 while OpenAudio Mercury costs $600. OpenAudio Mercury is $11 more expensive. Thieaudio Oracle MKIII holds a decisive 2.3-point edge in reviewer scores (7.7 vs 5.4). Thieaudio Oracle MKIII has better bass with a 0.5-point edge, Thieaudio Oracle MKIII has significantly better mids with a 1.3-point edge, Thieaudio Oracle MKIII has better treble with a 0.5-point edge, Thieaudio Oracle MKIII has significantly better dynamics with a 1.5-point edge, Thieaudio Oracle MKIII has significantly better details with a 2.5-point edge and Thieaudio Oracle MKIII has significantly better imaging with a 1.3-point edge.
Insights
Metric | Thieaudio Oracle MKIII | OpenAudio Mercury |
---|---|---|
Bass | 6.5 | 6 |
Mids | 7.3 | 6 |
Treble | 6.5 | 6 |
Details | 7.5 | 5 |
Soundstage | 7 | 5.4 |
Imaging | 7.3 | 6 |
Dynamics | 6.5 | 5 |
Tonality | 7.3 | 6.7 |
Technicalities | 7.4 | 5.2 |
Thieaudio Oracle MKIII Aggregated Review Score
Average Reviewer Scores
OpenAudio Mercury Aggregated Review Score
Average Reviewer Scores
Thieaudio Oracle MKIII Details
Driver Configuration: 2DD+2BA+2EST
Tuning Type: Neutral with bass boost
Brand: ThieAudio Top ThieAudio IEMs
Price (Msrp): $589
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OpenAudio Mercury Details
Driver Configuration: 1DD+4BA
Tuning Type: Bassy V
Price (Msrp): $600
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Thieaudio Oracle MKIII User Review Score
Average User Scores
Average User Score: n/a
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OpenAudio Mercury User Review Score
Average User Scores
Average User Score: n/a
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Thieaudio Oracle MKIII Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.1Gaming Grade
A-OpenAudio Mercury Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
5.1Gaming Grade
C+Thieaudio Oracle MKIII 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
A-- Competent technical presentation. Handles separation and detail well in most tracks, with modest soundstage and acceptable imaging capabilities.
OpenAudio Mercury Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B+- 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 Oracle MKIII Reviews
Reviewed by: Z-Reviews
Reviewed by: Jaytiss
Jaytiss Youtube Channel
Reviewed by: Super* Review
Super* Review original ranking
Super* Review Youtube ChannelReviewed by: Jays Audio
Jays Audio Youtube Channel
Reviewed by: Shuwa-T
Reviewed by: Precogvision
Precogvision Youtube Channel
Reviewed by:
Fresh Reviews
Fresh Reviews original ranking
Fresh Reviews Youtube ChannelReviewed by: IEMRanking AI
2025-07-06
The ThieAudio Oracle MKIII presents a divisive tonal character that splits listener opinions. Its bass response, driven by dual dynamic drivers in an IMPACT2 subwoofer configuration, offers textured sub-bass rumble but some find mid-bass impact lacking resolution and physical slam. The treble performance proves particularly contentious, with Sonion EST drivers delivering exceptional air and extension for some, while others perceive it as unnatural or tinny due to peaks around 6kHz and coherency challenges between driver types.
Technically, the MKIII excels in spacious staging and precise instrument separation, creating a holographic presentation that rivals open-back headphones. The midrange maintains good clarity with natural timbre, though vocal positioning leans spacious rather than intimate. Comfort proves excellent for medium-to-large ears due to its ergonomic resin shells, but the size may challenge those with smaller ear anatomy.
OpenAudio Mercury Reviews
Reviewed by: Bad Guy Good Audio
Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube ChannelReviewed by: Precogvision
Precogvision Youtube Channel
Reviewed by: Super* Review
Thieaudio Oracle MKIII User Reviews
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