Fiio FH9 VS Letshuoer DZ4

IEM Comparison: Expert & Community Scores Side-by-Side

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Fiio FH9 and Letshuoer DZ4 are in-ear monitors. Fiio FH9 costs $600 while Letshuoer DZ4 costs $100. Fiio FH9 is $500 more expensive. Letshuoer DZ4 holds a slight 0.4-point edge in reviewer scores (6.1 vs 6.5).

Insights

Metric Fiio FH9 Letshuoer DZ4
Bass 5 6.5
Mids 5 6.5
Treble 6 6.5
Details 5 6.5
Soundstage 7 6.5
Imaging 5 6.5
Dynamics 5.5 6.5
Tonality 5.8 8
Technicalities 6 6.5

Fiio FH9 Aggregated Review Score

Average Reviewer Scores

Precogvision
Crin
Jaytiss

Average Reviewer Score:

6.1

Mixed to Positive


Letshuoer DZ4 Aggregated Review Score

Average Reviewer Scores

Jays Audio
Z-Reviews

Average Reviewer Score:

6.5

Cautiously Favorable


Reviews Comparison

Fiio FH9 (more reviews)

Fiio FH9 reviewed by Jaytiss

2025-09-11
Jaytiss 7.3 Reviewer Score
B Tuning
A- Tech
A different try on Reference.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: C+ Treble: A- Dynamics: B Soundstage: A-

Fiio FH9 reviewed by Crin

Crin 6 Reviewer Score
B Tuning
B Tech

Fiio FH9 reviewed by Precogvision

Precogvision 5 Reviewer Score
C+ Tuning
C+ Tech
Pretty alright overall. Warm and reasonably well-balanced in the upper-midrange and lower-treble unlike some of Fiio's other IEMs.

Precogvision original ranking

Precogvision Youtube Channel
Bass: C+ Mids: C+ Treble: C+ Dynamics: C+ Details: C+ Imaging: C+

Letshuoer DZ4 (more reviews)

Letshuoer DZ4 reviewed by Z-Reviews

Z-Reviews 7 * score normalized

Letshuoer DZ4 reviewed by Jays Audio

Jays Audio 6 Reviewer Score
A+ Tuning
B+ Tech
Recommended at high volumes. A better Galileo with more treble/air. Vocal centric. Powerful and extended vocals. Could use better separation and tech, and lacks bass.

Jays Audio original ranking

Jays Audio Youtube Channel

Fiio FH9 User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

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Letshuoer DZ4 User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

No user reviews yet. Be the first one who writes a review!

Fiio FH9 Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

5.4

Gaming Grade

C+

Letshuoer DZ4 Gaming Score

Gaming Score & Grade

  • The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.

Gaming Score

7

Gaming Grade

A-

Fiio FH9 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.
Bass C+
Average bass performance - present but unremarkable. Has reasonable texture but lacks depth and physicality.
Mids C+
Decent midrange performance - balanced but unremarkable. Adequate clarity for most genres without notable flaws.
Treble B
Good treble response - clear and detailed without fatigue. Well-extended with proper air and sparkle.
Dynamics B-
Decent dynamic performance. Good macro-contrast but micro-dynamics could be more nuanced. Satisfactory impact.
Soundstage A-
Excellent spatial presentation - wide, deep and tall. Precise instrument placement with clear separation in all dimensions.
Details C+
Decent detail retrieval. Handles most textures adequately though micro-details and ambient cues could be more pronounced.
Imaging C+
Decent positional accuracy. Good left/right placement with acceptable center image, though depth positioning is approximate.
Gaming C+
Fundamental left/right positioning with limited depth perception. Works for non-competitive gaming but lacks precision. Bad value-to-cost for gaming purpose - not recommended

Letshuoer DZ4 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

B+
  • Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
Gaming A-
Good fundamental spatial awareness for most gaming scenarios. Handles basic positioning well but may lack nuance in complex situations.

Fiio FH9 User Reviews

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Letshuoer DZ4 User Reviews

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