Fir Audio M4 and 64 Audio Tia Trio use 1DD+3BA and 1DD+2BA driver setups respectively. Fir Audio M4 costs $1,900 while 64 Audio Tia Trio costs $2,300. 64 Audio Tia Trio is $400 more expensive. 64 Audio Tia Trio holds a decisive 2.4-point edge in reviewer scores (6 vs 8.4). 64 Audio Tia Trio has significantly better bass with a 6-point edge, 64 Audio Tia Trio has significantly better mids with a 1.5-point edge, 64 Audio Tia Trio has significantly better treble with a 2.5-point edge, 64 Audio Tia Trio has significantly better details with a 3-point edge and 64 Audio Tia Trio has significantly better imaging with a 2-point edge.
Insights
Metric | Fir Audio M4 | 64 Audio Tia Trio |
---|---|---|
Bass | 4 | 10 |
Mids | 5.5 | 7 |
Treble | 4.5 | 7 |
Details | 5 | 8 |
Soundstage | 7 | 7 |
Imaging | 6.5 | 8.5 |
Dynamics | 9 | 9 |
Gaming capabilities | 4.6 | 6.4 |
Fir Audio M4 Aggregated Review Score
Fir Audio M4 Average Reviewer Scores
64 Audio Tia Trio Aggregated Review Score
64 Audio Tia Trio Average Reviewer Scores
Fir Audio M4 Details
Driver Configuration: 1DD+3BA
Tuning Type: Warm neutral
Price (Msrp): $1,900
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64 Audio Tia Trio Details
Driver Configuration: 1DD+2BA
Tuning Type: Bassy Neutral
Price (Msrp): $2,300
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Fir Audio M4 User Review Score
Fir Audio M4 Average User Scores
Average User Score: n/a
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64 Audio Tia Trio User Review Score
64 Audio Tia Trio Average User Scores
Average User Score: n/a
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Fir Audio M4 Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
4.6Gaming Grade
C64 Audio Tia Trio 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
BFir Audio M4 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
B- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
64 Audio Tia Trio 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+- Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
Fir Audio M4 Reviews
Fir Audio M4 reviewed by: Crin
Too similar to the M3 to be worth the price markup. Crin Youtube Channel
Fir Audio M4 reviewed by: Shuwa-T
Comment: Warm and lush midrange. Soundstage is surprisingly wide, midrange focused tuning Note definition is strangely subpar despite treble boost
64 Audio Tia Trio Reviews
64 Audio Tia Trio reviewed by: Super* Review
64 Audio Tia Trio reviewed by: Precogvision
Rich bass and out-of-head imaging. Precogvision Youtube Channel
64 Audio Tia Trio reviewed by: Crin
A more correct sounding version of the Fourte with slight cutbacks in staging and sheer resolution. Crin Youtube Channel
64 Audio Tia Trio reviewed by: Nymz
Best bass texture ever. Gorgeous treble extension, stage and imaging. Coherency and timbre a bit off. Upper mids/lower treble could be better. As amazing as it is, I couldn't fully connect with it (musically). Price is the biggest con.
Fir Audio M4 User Reviews
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