FATFreq Grand Maestro and Kinera Loki use 1DD+8BA+4EST and 1DD+6BA+4EST+1BC driver setups respectively. FATFreq Grand Maestro costs $3,334 while Kinera Loki costs $3,099. FATFreq Grand Maestro is $235 more expensive. FATFreq Grand Maestro holds a clear 0.6-point edge in reviewer scores (8.6 vs 7.9). FATFreq Grand Maestro has better mids with a 0.8-point edge, FATFreq Grand Maestro has significantly better treble with a 2.5-point edge, FATFreq Grand Maestro has significantly better dynamics with a 3.5-point edge and FATFreq Grand Maestro has significantly better soundstage with a 2-point edge.
Insights
Metric | FATFreq Grand Maestro | Kinera Loki |
---|---|---|
Bass | 7.8 | 7.9 |
Mids | 6.8 | 6 |
Treble | 7.5 | 5 |
Details | 6.8 | 7.9 |
Soundstage | 9 | 7 |
Imaging | 7.3 | 7.9 |
Dynamics | 8.5 | 5 |
Tonality | 8.2 | 7.6 |
Technicalities | 8.1 | 7.3 |
FATFreq Grand Maestro Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.6Excellent
Kinera Loki Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
7.9Strongly Favorable
Reviews Comparison
FATFreq Grand Maestro reviewed by Jays Audio
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
Kinera Loki reviewed by Jays Audio
Jays Audio Youtube Channel
FATFreq Grand Maestro reviewed by Jaytiss
Jaytiss Youtube Channel
Kinera Loki reviewed by Jaytiss
Jaytiss Youtube Channel
FATFreq Grand Maestro (more reviews)
FATFreq Grand Maestro reviewed by Smirk Audio
FATFreq Grand Maestro reviewed by Nymz
FATFreq Grand Maestro reviewed by Head-Fi.org
FATFreq Grand Maestro reviewed by Web Search

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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Kinera Loki Details
Driver Configuration: 1DD+6BA+4EST+1BC
Tuning Type: n/a
Brand: Kinera Top Kinera IEMs
Price (Msrp): $3,099
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FATFreq Grand Maestro User Review Score
Average User Scores
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Kinera Loki User Review Score
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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+Kinera Loki Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
5.9Gaming Grade
B-FATFreq 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.
Kinera Loki 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-- It manages detail and layering well enough, even if the stage feels only moderately sized. You get a clear sense of left and right, if not depth.
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