Penon Impact VS FATFreq Grand Maestro
IEM Comparison: Expert & Community Scores Side-by-Side
Penon Impact and FATFreq Grand Maestro use 10BA+4EST and 1DD+8BA+4EST driver setups respectively. Penon Impact costs $2,500 while FATFreq Grand Maestro costs $3,334. FATFreq Grand Maestro is $834 more expensive. FATFreq Grand Maestro holds a decisive 2.2-point edge in reviewer scores (6.2 vs 8.4). FATFreq Grand Maestro has significantly better bass with a 2.8-point edge, Penon Impact has significantly better mids with a 1.2-point edge, FATFreq Grand Maestro has better treble with a 0.5-point edge, FATFreq Grand Maestro has better details with a 0.8-point edge and FATFreq Grand Maestro has significantly better imaging with a 1.3-point edge.
Insights
| Metric | Penon Impact | FATFreq Grand Maestro |
|---|---|---|
| Bass | 5 | 7.8 |
| Mids | 8 | 6.8 |
| Treble | 7 | 7.5 |
| Details | 6 | 6.8 |
| Soundstage | 6.2 | 9 |
| Imaging | 6 | 7.3 |
| Dynamics | 6.2 | 8.5 |
| Gaming capabilities | 4.6 | 6.6 |
Penon Impact Aggregated Review Score
Penon Impact Average Reviewer Scores
FATFreq Grand Maestro Aggregated Review Score
FATFreq Grand Maestro Average Reviewer Scores
Penon Impact Details
Driver Configuration: 10BA+4EST
Tuning Type: n/a
Price (Msrp): $2,500
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FATFreq Grand Maestro Details
Driver Configuration: 1DD+8BA+4EST
Tuning Type: Configurable - Bass-focused to balanced
Price (Msrp): $3,334
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Penon Impact User Review Score
Penon Impact Average User Scores
Average User Score: n/a
Based on 0 user reviews
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FATFreq Grand Maestro User Review Score
FATFreq Grand Maestro Average User Scores
Average User Score: n/a
Based on 0 user reviews
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Penon Impact 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
CFATFreq 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+Penon Impact 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.
FATFreq Grand Maestro Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- Refined execution with coherent frequency integration. Natural timbre reproduction and engaging presentation. Strong versatility.
Average Technical Grade
A+- Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
Penon Impact Reviews
Penon Impact reviewed by: Nymz
6.2
Reviewer Score
Limp bass, but good mid-range and treble tuning. Techs felt underwhelming for its price, with extremely blunted transients.
FATFreq Grand Maestro Reviews
FATFreq Grand Maestro reviewed by: Smirk Audio
7.7
Reviewer Score
check links for more info:
FATFreq Grand Maestro reviewed by: Jays Audio
9.5
Reviewer Score
The best basshead set. That is all. EXPENSIVE. If you just want bass HBB Punch way better value. Jays Audio Youtube Channel
FATFreq Grand Maestro reviewed by: Jaytiss
9.3
Reviewer Score
Is one of those sets that can do it all. Very impressive. Jaytiss Youtube Channel
FATFreq Grand Maestro reviewed by: Nymz
6.5
Reviewer Score
See Maestro SE but with worse bass.
FATFreq Grand Maestro reviewed by: IEMRanking AI
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.
Penon Impact User Reviews
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