Final A4000 VS Kefine Quatio

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

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Final A4000 and Kefine Quatio are in-ear monitors. Final A4000 costs $139 while Kefine Quatio costs $130. Final A4000 is $9 more expensive. Kefine Quatio holds a decisive 3.4-point edge in reviewer scores (3.4 vs 6.8). Kefine Quatio carries a user score of 8. Kefine Quatio has significantly better mids with a 2-point edge, Kefine Quatio has significantly better treble with a 4-point edge, Kefine Quatio has significantly better dynamics with a 4-point edge and Kefine Quatio has significantly better soundstage with a 2-point edge.

Insights

Metric Final A4000 Kefine Quatio
Bass 3.4 7
Mids 4 6
Treble 2 6
Soundstage 5 7
Dynamics 3 7
Tonality 3.8 6.8
Technicalities 2 6.5
Take these comparisons with a grain of salt—we don't have enough Final A4000 reviews saved yet to provide an unbiased result.

Final A4000 Aggregated Review Score

Average Reviewer Scores

Jaytiss Audionotions

Average Reviewer Score:

3.4

Very Poor

Kefine Quatio Aggregated Review Score

Average Reviewer Scores

Tim Tuned
Gizaudio Axel Jays Audio Fresh Reviews
Jaytiss Head-Fi.org
Web Search

Average Reviewer Score:

6.8

Cautiously Favorable

Reviews Comparison

Final A4000 reviewed by Jaytiss

Jaytiss 3.8 Reviewer Score
D+ Tuning
E+ Tech
A bit warm, and late pina gain. Not terrible, but increased 9k is also meh.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: C- Treble: E+ Dynamics: D Soundstage: C+

Kefine Quatio reviewed by Jaytiss

Jaytiss 7 Reviewer Score
B Tuning
C+ Tech
Mids are slightly cooked, but it's nice overall.

Jaytiss original ranking

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

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Price: $129

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Final A4000 (more reviews)

Final A4000 reviewed by Audionotions

Audionotions 3 Reviewer Score
Sound stage and imaging are good. Very, very bright/sibilant set though. Would be good for gaming and maybe trebleheads but I found it way too hot to listen to at length - actually caused a headache. Very small and light IEMs but for my ears fit was tricky. Had to tip roll to get it to seal.

Audionotions original ranking

Website (Audionotions)

Kefine Quatio (more reviews)

Kefine Quatio reviewed by Gizaudio Axel

2025-07-31
Gizaudio Axel 6.5 Reviewer Score
A- Tuning
B+ Tech
An engaging sound signature with good bass and natural mids. Deep bass with strong impact, natural mids with good timbre, and smooth treble with great detail. Lower treble can get a bit energetic, and upper treble lacks some air.

Gizaudio Axel original ranking

Gizaudio Axel Youtube Channel

Kefine Quatio reviewed by Jays Audio

Jays Audio 6.5 Reviewer Score
A Tuning
A- Tech
A bassy all-rounder, and cleaner Doscinco for $100 less. Very versatile with the different nozzles - goes from bassy to clean all-rounder. Solid packaging and accesories. Competitive tech, but not as value like Supermix4/EM6L/EA500LM.

Jays Audio original ranking

Jays Audio Youtube Channel
YouTube video thumbnail

Kefine Quatio reviewed by Fresh Reviews

2025-09-30
Fresh Reviews 6* * The score of this reviewer influences only the Gaming Score
Borders B+

Fresh Reviews original ranking

Fresh Reviews Youtube Channel
YouTube video thumbnail

Kefine Quatio reviewed by Tim Tuned

2025-08-09
Tim Tuned 5 Reviewer Score
C+ Tuning
B Tech
Mostly inoffensive bassy V-shape tuning Lacking details

Tim Tuned original ranking

Tim Tuned Youtube Channel
Bass: A- Mids: A- Treble: A-
YouTube video thumbnail

Kefine Quatio reviewed by Head-Fi.org

Head-Fi.org 7.9 * score rescaled + normalized
26 community members have rated the KEFINE QUATIO at an average of 4.6/5 on Head-Fi. Overall sentiment: Outstanding.

URL to full Review

Head-Fi.org original ranking

Kefine Quatio reviewed by Web Search

uses AI-Search to turn user, reddit and head-fi reviews into clear, concise summaries.
Web Search 8 Reviewer Score
S- Tuning
A+ Tech

The KEFINE Quatio impresses with its premium build quality and versatile tuning options. Its lightweight aluminum alloy shells offer both durability and comfort, while the included modular cable with 3.5mm/4.4mm terminations provides flexibility for various sources . The standout feature is the three interchangeable nozzles: gold for a bright, detailed signature, silver for balanced neutrality, and black for a warm, smooth presentation - allowing users to tailor the sound to their preferences .

Sonically, the hybrid 2DD+2BA configuration delivers punchy bass and textured mids across all tunings, with the gold nozzles particularly enhancing vocal clarity and treble energy . While bass enthusiasts might desire more impact, the overall coherence and natural timbre are exceptional for the price point. The technical performance shines through articulate imaging and a spacious soundstage, though some critical listeners may note slight treble roll-off on the black/silver nozzles .

At $129, the Quatio offers remarkable value with its triple-tuning system and comprehensive accessory package including multiple ear tips and a premium case . It stands as a compelling choice for those seeking adaptable sound signatures without compromising on build or technical prowess.

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Final A4000 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!

Kefine Quatio User Review Score

Average User Scores

Average User Score:

Based on 1 user reviews

8

Very Positive

Final A4000 Gaming Score

Gaming Score & Grade

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

Gaming Score

2.5

Gaming Grade

D-

Kefine Quatio Gaming Score

Gaming Score & Grade

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

Gaming Score

6.8

Gaming Grade

B+

Final A4000 Scorings

Average Technical & Tuning Grades

Average Tunign Grade

D+
  • The tuning lacks refinement, jumping between dull and shouty without settling. Vocals frequently sound off-kilter.

Average Technical Grade

E+
  • A foggy, one-dimensional presentation wipes out layering and obscures the finer points of a mix. Spatial cues barely register at all.
Mids C-
It delivers a workable midrange that could benefit from smoother transitions. Timbre isn't quite convincing yet.
Treble E+
Expect a dark-tilted treble that keeps excitement in check. Sibilants are dull, but so is everything else.
Dynamics D
Dynamics come across throttled, leaving energetic moments underwhelming. Energetic passages land with a thud.
Soundstage C+
It pushes sound outward confidently while leaving height development as an unfinished idea. Height remains subtle but detectable.
Gaming D-
Compromised imaging significantly impacts gameplay awareness. Directional cues often lack accuracy or consistency.

Kefine Quatio 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 A-
It serves up confident rumble and texture while keeping the spectrum balanced. You can enjoy bass-heavy music without fatigue.
Mids B
Expect a confident midrange that keeps details audible without harshness. Acoustic arrangements sound engaging.
Treble B
Expect crisp, well-balanced treble that keeps shimmer intact. You hear reverbs decay naturally.
Dynamics A-
Dynamic performance is excellent, combining sharp transients with strong contrast. Transients snap with authority.
Soundstage A-
All dimensions bloom together, producing an expansive venue that feels carefully rendered. You can map the ensemble easily.
Gaming B+
Respectable environmental presentation favors atmosphere over precision. Detects obvious directional cues while conveying game world ambiance.

Final A4000 User Reviews

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Kefine Quatio User Reviews

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Vairen
8

Outstanding value hybrid IEM offering refined musicality and premium feel at $129, competing above its price tier.

Tuning: S- Tech: A+ Bass: S- Mids: A+ Treble: A Dynamics: S- Soundstage: A+ Details: A+ Imaging: A+
Pros
Premium CNC aluminum build, versatile tuning nozzles, and exceptional accessories including modular cable. Warm, lush sound with punchy bass and natural mids ideal for vocals.
Cons
Treble lacks air/sparkle for some, mid-bass warmth occasionally blurs definition. Soundstage width is average despite good depth.

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Price: $129

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