Fiio JD1 VS KZ Duet

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

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Fiio JD1 and KZ Duet are in-ear monitors. Fiio JD1 costs $25 while KZ Duet costs $30. KZ Duet is $5 more expensive. KZ Duet holds a decisive 1.4-point edge in reviewer scores (5 vs 6.4). KZ Duet has better mids with a 0.9-point edge, KZ Duet has significantly better treble with a 4-point edge and KZ Duet has significantly better dynamics with a 1.9-point edge.

Insights

Metric Fiio JD1 KZ Duet
Bass 5 6.5
Mids 5 5.9
Treble 2 6
Details 5 7.1
Soundstage 6 6.2
Imaging 5 7.3
Dynamics 5 6.9
Tonality 5 5.9
Technicalities 2 6.1
Take these comparisons with a grain of salt—we don't have enough Fiio JD1 and KZ Duet reviews saved yet to provide an unbiased result.

Fiio JD1 Aggregated Review Score

Average Reviewer Scores

Jaytiss

Average Reviewer Score:

5

Mixed to Negative

KZ Duet Aggregated Review Score

Average Reviewer Scores

Paul Wasabii Jaytiss

Average Reviewer Score:

6.4

Mixed to Positive

Reviews Comparison

Fiio JD1 reviewed by Jaytiss

Jaytiss 5 Reviewer Score
C+ Tuning
E+ Tech
Fun, cool, great build, but not it.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: C+ Treble: E+ Dynamics: C+ Soundstage: B

KZ Duet reviewed by Jaytiss

Jaytiss 6 Reviewer Score
C+ Tuning
C+ Tech
Build quality is Earbud, I'd recommend the USB-C unless you need the wired.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: C+ Treble: C+ Dynamics: A- Soundstage: C+
YouTube video thumbnail

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KZ Duet (more reviews)

KZ Duet reviewed by Paul Wasabii

Paul Wasabii 6.8 * Score computed by IEMRanking.com
B+ Tuning
A- Tech
YouTube video thumbnail
Dual dynamic drivers in an earbud style shell deliver tight, fast bass with clear mids and lively treble that suit both music and gaming; sub-bass weight is modest. The optional DSP dongle is handy and the stage is impressively wide for the price. Clean, sharp imaging with big projected stage and tight, fast bass makes it good for both music and gaming. Sub-bass is light and the mid/treble edge can read a bit BA-like or fatiguing for some listeners.
Youtube Video Summary

KZ Duet pairs a 10 mm driver with an 8 mm unit in an earbud form factor, plus an in-ear sleeve that improves seal and isolation. The result is a dual feast of music and gaming: fuller low end from the big driver and Libra X-style clarity up top. It scales with a better source, while the cheap DSP dongle adds usable presets, making the package practical and comfortable.

Bass is tight and fast rather than rumbly, trading sub-bass slam for cleanliness that helps imaging. The mids carry some warmth to ~300 Hz and then tilt toward a sharper, BA-like clarity that favors voices and positional cues. Treble is boosted for energy but kept non-peaky, yielding a fun V-lean that suits EDM and shooters alike. Stage projects big, with crisp edges and stable placement; overall balance feels more polished than recent KZ gaming-centric releases.

Bass: B+ Mids: B+ Treble: A- Dynamics: B+ Soundstage: A- Details: A- Imaging: A-

Paul Wasabii original ranking

Paul Wasabii Youtube Channel

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Fiio JD1 User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

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KZ Duet User Review Score

Average User Scores

Average User Score: n/a

Based on 0 user reviews

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Fiio JD1 Gaming Score

Gaming Score & Grade

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

Gaming Score

2.9

Gaming Grade

D-

KZ Duet Gaming Score

Gaming Score & Grade

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

Gaming Score

5

Gaming Grade

C+

Fiio JD1 Scorings

Average Technical & Tuning Grades

Average Tunign Grade

C+
  • It sounds pleasant overall, with some uneven spots that hint at room for refinement. Vocals remain pleasant despite the imperfections.

Average Technical Grade

E+
  • The presentation is claustrophobic and blurred, leaving simple arrangements sounding chaotic and lifeless. The presentation feels more like background noise than music.
Mids C+
The mids are solid and dependable, though not especially remarkable. Vocals stay reasonably grounded in the mix.
Treble E+
The upper end is cloaked, leaving cymbals lacking shimmer and air. Overtones hide behind the midrange.
Dynamics C+
Dynamics feel competent, bringing energy without the finest detail. It carries energy without sounding aggressive.
Soundstage B
Good soundstage with proper width and depth, placing instruments in clearly defined positions. Instruments sit in their own lanes.
Gaming D-
Compromised imaging significantly impacts gameplay awareness. Directional cues often lack accuracy or consistency.

KZ Duet Scorings

Average Technical & Tuning Grades

Average Tunign Grade

B-
  • Tonality is generally agreeable, though a few bumps remind you of its limits. Certain tracks spotlight its tonal quirks.

Average Technical Grade

B
  • An honest, middle-of-the-road performance preserves structure without chasing micro-detail. It's respectable for everyday listening sessions.
Bass B+
You get a lively bass response that balances energy with discipline. It balances punch with respectable control.
Mids B-
Expect a competent midrange that keeps vocals grounded and instruments clear. Tone is acceptable across multiple genres.
Treble B
Treble is articulate and clean, adding excitement without harshness. It adds sparkle without harshness.
Dynamics B+
You get confident dynamics that track both macro swings and rhythmic drive. There's life in every crescendo.
Soundstage B
Lateral spread stretches comfortably while front/back cues start to feel convincing. You can trace front-to-back movement.
Details A-
Resolution feels both high and relaxed, capturing nuance with ease. There's zero smearing even at high volume.
Imaging A-
You can literally point to where sounds originate across the stage. You can point to where sounds originate.
Gaming C+
Fundamental left/right positioning with limited depth perception. Works for non-competitive gaming but lacks precision.

Fiio JD1 User Reviews

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KZ Duet User Reviews

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