FATFreq Grand Maestro VS Vision Ears x Astell&Kern Aura
IEM Comparison: Expert & Community Scores Side-by-Side
FATFreq Grand Maestro and Vision Ears x Astell&Kern Aura are in-ear monitors. FATFreq Grand Maestro costs $3,334 while Vision Ears x Astell&Kern Aura costs $4,100. Vision Ears x Astell&Kern Aura is $766 more expensive. FATFreq Grand Maestro holds a slight 0.1-point edge in reviewer scores (8.6 vs 8.5).
Insights
| Metric | FATFreq Grand Maestro | Vision Ears x Astell&Kern Aura |
|---|---|---|
| Bass | 7.8 | 8.5 |
| Mids | 6.8 | 8.5 |
| Treble | 7.5 | 8.5 |
| Details | 6.8 | 8.5 |
| Soundstage | 9 | 8.5 |
| Imaging | 7.3 | 8.5 |
| Dynamics | 8.5 | 8.5 |
| Tonality | 8.2 | 8.5 |
| Technicalities | 8.1 | 8 |
FATFreq Grand Maestro Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.6Excellent
Vision Ears x Astell&Kern Aura Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.5Excellent
Reviews Comparison
FATFreq Grand Maestro reviewed by Yifang
8.5
Reviewer Score
Vision Ears x Astell&Kern Aura reviewed by Yifang
8.5
Reviewer Score
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 Jaytiss
9.3
Reviewer Score
Jaytiss Youtube Channel
FATFreq Grand Maestro reviewed by Smirk Audio
7.7
Reviewer Score
FATFreq Grand Maestro reviewed by Nymz
6.5
Reviewer Score
FATFreq Grand Maestro reviewed by Head-Fi.org
9.5
* score rescaled + normalized
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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Vision Ears x Astell&Kern Aura Details
Driver Configuration: n/a
Tuning Type: n/a
Brand: Vision Ears Top Vision Ears IEMs
Price (Msrp): $4,100
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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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Vision Ears x Astell&Kern Aura 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+Vision Ears x Astell&Kern Aura Gaming Score
Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.7Gaming 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.
Vision Ears x Astell&Kern Aura Scorings
Average Technical & Tuning Grades
Average Tunign Grade
S-- Tonal balance reaches a highly refined state, sounding seamless from lows to highs. Everything locks together with satisfying coherence.
Average Technical Grade
A+- You get an articulate, polished performance with immersive stage depth and great control. There's a sense of polish across the whole spectrum.
FATFreq Grand Maestro User Reviews
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