FATFreq Grand Maestro VS FiR Audio Radon 6
IEM Comparison: Expert & Community Scores Side-by-Side
FATFreq Grand Maestro and FiR Audio Radon 6 use 1DD+8BA+4EST and 1DD+4BA+1EST driver setups respectively. FATFreq Grand Maestro costs $3,334 while FiR Audio Radon 6 costs $3,300. FATFreq Grand Maestro is $34 more expensive. FATFreq Grand Maestro holds a slight 0.1-point edge in reviewer scores (8.6 vs 8.4). FiR Audio Radon 6 has better bass with a 0.8-point edge, FATFreq Grand Maestro has slightly better dynamics with a 0.3-point edge, FATFreq Grand Maestro has significantly better soundstage with a 3-point edge, FiR Audio Radon 6 has significantly better details with a 1.8-point edge and FiR Audio Radon 6 has better imaging with a 0.8-point edge.
Insights
| Metric | FATFreq Grand Maestro | FiR Audio Radon 6 |
|---|---|---|
| Bass | 7.8 | 8.5 |
| Mids | 6.8 | 7 |
| Treble | 7.5 | 7.5 |
| Details | 6.8 | 8.5 |
| Soundstage | 9 | 6 |
| Imaging | 7.3 | 8 |
| Dynamics | 8.5 | 8.3 |
| Tonality | 8.2 | 7.5 |
| Technicalities | 8.1 | 7.7 |
FATFreq Grand Maestro Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.6Excellent
FiR Audio Radon 6 Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.4Very Positive
Reviews Comparison
FATFreq Grand Maestro reviewed by Jaytiss
9.3
Reviewer Score
Jaytiss Youtube Channel
FiR Audio Radon 6 reviewed by Jaytiss
7.8
Reviewer Score
FATFreq Grand Maestro reviewed by Smirk Audio
7.7
Reviewer Score
FiR Audio Radon 6 reviewed by Smirk Audio
8.3
Reviewer Score
FATFreq Grand Maestro reviewed by Head-Fi.org
9.5
* score rescaled + normalized
FiR Audio Radon 6 reviewed by Head-Fi.org
9.2
* score rescaled + normalized
FATFreq Grand Maestro (more reviews)
FATFreq Grand Maestro reviewed by Jays Audio
9.5
Reviewer Score
Youtube Video Summary
FATFreq Grand Maestro aims squarely at a refined, sub-boosted tuning rather than a crude bass cannon. The bass quality shows real pedigree—excellent control, quick decay, and that clean, floor-shaking sub-bass rumble without smearing the mids. Treble reaches higher with better extension than typical basshead fare, and overall resolution, separation, and balance feel “endgame” in polish. For listeners who want muscular low-end that still plays nice with vocals and air, this tuning reads as a mature, high-performance take on “bass + hi-fi.”
But for pure basshead cravings, Grand Maestro doesn’t go overboard—it’s a bassy set, not a “basshead or bust” one. Compared with FATFreq’s own Scarlet Mini (or Maestro Mini), it brings less sheer quantity and “skull-rattle,” trading slam for finesse; next to ultra-dark hammers like HBB Hades, it’s far more balanced and controlled. The catch is diminishing returns: while the Grand Maestro is the most refined and technically capable among these bass-tilted options, those chasing maximum pound-for-pound slam may find better value in the Minis, and those wanting reckless low-end excess will still gravitate to sets like Hades. For most non-basshead audiophiles, though, Grand Maestro’s blend of sub-bass authority and top-end refinement hits the sweet spot.
Jays Audio Youtube Channel
FATFreq Grand Maestro reviewed by Yifang
8.5
Reviewer Score
FATFreq Grand Maestro reviewed by Nymz
6.5
Reviewer Score
FATFreq Grand Maestro reviewed by Web Search
9
Reviewer Score
The FATFreq Grand Maestro offers a highly adaptable sound signature through its NOAH modules and vocal switches, enabling four distinct tuning profiles. The black NOAH module emphasizes sub-bass "slam," while the blue variant provides tighter "rumble" control; combined with the vocal switch, these allow shifts from a bass-forward signature to a more mid-centric presentation. Bass is deep and authoritative but avoids midrange bleed, while the treble—handled by electrostatic drivers—delivers clarity without sibilance or fatigue.
Technically, it excels in imaging precision and creates an immersive, three-dimensional soundstage that positions instruments with remarkable specificity. However, its large shell size may challenge those with smaller ears, and it demands power-hungry sources—often requiring high-gain amplification to reach full potential. The deluxe package includes both NOAH modules and an upgraded cable, enhancing its tuning flexibility.
FATFreq Grand Maestro Details
Driver Configuration: 1DD+8BA+4EST
Tuning Type: Neutral, Basshead
Price (Msrp): $3,334
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FiR Audio Radon 6 Details
Driver Configuration: 1DD+4BA+1EST
Tuning Type: Neutral with Bass Boost
Price (Msrp): $3,300
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FATFreq Grand Maestro User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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FiR Audio Radon 6 User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
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FATFreq Grand Maestro Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.6Gaming Grade
B+FiR Audio Radon 6 Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.1Gaming Grade
BFATFreq Grand Maestro Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- Tuning feels refined, blending frequencies with convincing realism and engagement. Transitions between registers feel effortless.
Average Technical Grade
A+- Layering is confident and precise, backed by imaging that locks elements firmly in place. Micro-details peek through without sounding forced.
FiR Audio Radon 6 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A- The response is even and composed, lending itself to effortless genre hopping. Voices sit comfortably in the mix.
Average Technical Grade
A- You get a well-rounded technical package that keeps separation, detail, and staging in harmony. It's a solid middle ground between fun and fidelity.
FATFreq Grand Maestro User Reviews
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