Design and model identity
Engineering-resin shell and 6063 aluminium faceplate.
Kotori Audio Zephyr
Click your selection again to undo.
Product information
At a glance
Emphasis: Vocal emphasisTimbre: Neutral toneListening: Vocal expression
A candidate for listeners seeking vocal presence and expression, a tone not classified as especially warm or bright and following vocal expression.
Technical / Musical 84 / 88Retained editorial scores10 Source recordsSignature evidence · MediumPrice record date · 2026-10-10Evidence for the catalogue referenceListing price: SGD 199.90 · 2026-10-25
Scores are retained editorial reference values, not laboratory measurements or arithmetic averages of review stars. A one-point difference does not establish absolute superiority. Signature confidence is separate from score certainty.
Read the scores and evidence ↗Core product facts
- Release month
- 2024-11
- Driver configuration
- 1DD + 1BA
- Impedance
- 18.3Ω
- Earpiece connector
- 0.78mm 2-pin
- Stock plug
- Gold-plated right-angle 3.5 mm TRS
- Catalogue reference · KRW
- ₩260,408USD 186.67
- Emphasis · timbre
- Emphasis: Vocal emphasis · Timbre: Neutral tone
A recorded reference amount, not a live lowest price.
Basic specifications
Specifications retained from product records; missing values are not estimated. Korean source wording is preserved where no verified translation exists.
| Driver configuration | 1DD + 1BA |
|---|---|
| Impedance | 18.3Ω |
| Sensitivity | 92.6 dBA average SPL · published measurement basis; not a 1 kHz dB/mW valueSpecification source ↗ · kotoriaudio.com |
| Weight and scope | Listed as 5.2 g per side and 21.3 g for the cable; these are separate weights.Specification source ↗ · kotoriaudio.com |
| Nozzle diameter | No established value in the checked records. Value not established · checked source ↗ · kotoriaudio.com |
| Included accessories |
|
| Cable conductor / material | OFC silver-plated copper Litz |
| Cable cores / braid | 28AWG · 2 × 2-core |
| Cable length | No established value in the checked records. Value not established · checked source ↗ · kotoriaudio.com |
| Earpiece connector | 0.78mm 2-pin |
| Source plug | Gold-plated right-angle 3.5 mm TRS |
Retained product source ↗ · kotoriaudio.com · Specification evidence · Research coverage
Package/cable records below retain the original source language. Purchase options, modular plugs and aftermarket accessories are distinguished; unverified counts and materials are not estimated.
Package contents may vary by sales region, production date and connector option.
Kotori Audio Zephyr 기존 제품 자료 ↗ · kotoriaudio.comKotori Zephyr official accessories ↗ · kotoriaudio.comPrice and release evidence
These amounts use different bases. The KRW reference is used for catalogue sorting and filters; the listing quote uses the stated currency and option. Do not treat them as comparable current KRW checkout prices.
Listing price
SGD 199.90
Checked: 2026-10-25 · Page-reported status: Reported in stock
Open listing ↗ · kotoriaudio.comPublicly posted amount only. Options, region, shipping, tax, coupons and final checkout require separate verification. This does not validate the historical KRW reference or update its exchange rate.
Catalogue reference · KRW
Historical source for the KRW reference not secured
₩260,408
Retained USD reference. The current regular AliExpress price for the same option has not been verified.
Reference conversion: US$186.67 × ₩1395.02/USD → ₩260,408 · 2024-11 monthly rate
The original product-price URL was not retained for this reference amount. A general product page or an exchange-rate page is not proof of that exact selling price.
Exchange-rate data only ↗ · fred.stlouisfed.org
Pricing record date: 2026-10-10
This is the registered reference price, not a live lowest-price quote. Option, shipping, tax, coupons and exchange-rate rounding may differ.
Driver and design evidence
1DD + 1BA
Recorded model / design notes (original language): 3D 프린트 엔지니어링 수지 셸과 6063 CNC 알루미늄 페이스플레이트를 사용합니다.
Product specifications / model-specific reference ↗ · kotoriaudio.com
Additional product reference: 순수하고 매력 있는 사운드 — 코토리 제퍼 청음기 · blog.naver.com
Additional product reference: 담백함 속에 여운을 드리운다: 코토리 오디오 제퍼 · blog.naver.com
Linked references are the existing model-specific specification/design records. Manufacturer, retailer and review sources are distinguished in the original pages. Driver counts alone do not establish sound quality; model generations and variants must match.
Engineering-resin shell and 6063 aluminium faceplate.
A titanium-coated DD plus BA hybrid using PBAS pressure management. Frequency emphasis and timbre are listed separately.
Representative character: Vocal expression
2ann quick note
Author sign-inLoading note…
Sound, assessment & measurements
Technical evaluation 84 / 100
Bass84
Mids86
Treble83
Spatial presentation84
Evidence behind the technical assessment
Treble presentation: Generally controlled, without spectacular upper-treble sparkle. ↗
Stage and separation: Width can be generous, while precise depth and separation are less consistent strengths. ↗
Read sources and disagreements ↗Musical enjoyment 88 / 100
Natural timbre91
Emotional expression88
Immersion87
Rhythm and dynamics86
Vocal and instrumental liveliness88
Long-session comfort91
Evidence behind musical enjoyment
Bass character: Clean and controlled; deep weight is not the focus. ↗
Vocals and mids: Female-vocal nuance is a strength, with dryness, nasal tone and distance counterexamples. ↗
Read sources and disagreements ↗Sound and listening impressions
Design, bass, mids, treble, stage and differing reviewer impressions are presented together.
Sound classification
Representative listening character
Vocal presence and expressive midrange are the main attractions. This editorial browsing category is drawn from retained model-specific reviews; it does not exclude other listening uses.
Similar listening character ↗Frequency emphasis: Vocal emphasis. Female-vocal nuance is a strength, with dryness, nasal tone and distance counterexamples. Overall timbre: Neutral tone. These are separate representative axes; fit, nozzle settings and contrary accounts remain in the reviewed evidence.
Differences by listening conditions: Some Reddit accounts hear recessed or honky mids, and piano weight can be light. Vocal focus does not guarantee close or natural reproduction of every voice.
Concise English summaries distinguish product specifications, reviewed listening impressions and practical advice. Original source notes remain available below.
Bass quantity and texture
Clean and controlled; deep weight is not the focus.
Vocal placement and midrange
Female-vocal nuance is a strength, with dryness, nasal tone and distance counterexamples.
Treble and fatigue
Generally controlled, without spectacular upper-treble sparkle.
Stage, separation and imaging
Width can be generous, while precise depth and separation are less consistent strengths.
Disagreement and listening conditions
The bass, vocal and treble descriptions summarise reviewed impressions, not measured quality. Tips, volume, nozzle settings and source conditions can explain differences. Sample relationships and duplicate authors remain disclosed in the source records.
Strengths and caveats from reviewed sources
Supplementary notes retain the original Korean research wording.
순수하고 매력 있는 사운드 — 코토리 제퍼 청음기 ↗ — 기본 성향은 약간 얇고 담백하며 중고역이 선명한 쪽. 여성 보컬 뉘앙스와 밝고 자연스러운 고역 디테일, 깨끗한 배경을 호평하되 온기·잔향은 적고 피아노의 저음 무게와 에너지는 아쉽다고 보고. 치찰음이 과하지 않음. 케이블 교체 효과를 물리적 사실로 적용하지 않고 기본 성향 평가만 채택.
담백함 속에 여운을 드리운다: 코토리 오디오 제퍼 ↗ — 부드럽고 담백한 음색, 살짝 먼 듯한 온기 있는 중역과 편안한 고역을 보고. 깨끗한 저음, 개방감과 해상도는 긍정적이나 질감·무게가 가볍다고 평가. 밝고 건조하다는 다른 후기와 온도/고역 자극의 차이를 보존.
Listening suggestions and selection points
Start with vocal pop, acoustic songs or ballads. Look beyond singer distance to the relationship between diction, vocal body and accompaniment.
These are editorial starting points derived from the existing sound descriptions, not results of a genre-by-genre test. Recordings and arrangements vary even within one genre.
How to choose this product
Preferences that match
- vocal presence and expression · a tone not classified as especially warm or bright
- following vocal expression
Consider alternatives first if you prefer
- instrument-led balance ahead of vocal presence
- a deliberately warm or bright coloration
A preference guide based on the existing classification. Fit and enjoyment vary with listener, music and tips.
Products to compare
Candidates selected by classification and proximity of registered reference prices, not direct A/B auditions or performance rankings.
Fit and connection checks
Information retained from registered sources. Where verified wearing photos or individual fitting observations are unavailable, consult the product photo and the specification scope.
Listening checklist
- Compare vocal masking at matched volume.
- Use familiar music to separate bass quantity from decay.
- Check treble comfort after matching tips and seal.
Cable, plugs and drive
- Earpiece connector: 0.78mm 2-pin
- Source plug: Gold-plated right-angle 3.5 mm TRS
- Cable length: No established value in the checked records. Value not established · checked source ↗
- Impedance: 18.3Ω
- Sensitivity: 92.6 dBA average SPL · published measurement basis; not a 1 kHz dB/mW valueSpecification source ↗
Included accessories
- Included accessories: H-01 tip setM-02 tip setTip organiserCARBON 3 stock cableMetal carrying case
- Cable conductor / material: OFC silver-plated copper Litz
- Cable cores / braid: 28AWG · 2 × 2-core
Frequency-response graph
MeasurementSource notes
Reading limits
These values are approximate digitization of a source image; small decimal differences should not be overinterpreted. Seal, tips, nozzle/filter, insertion and rig can change the shape. Bass speed, natural timbre, resolution, separation and stage are not established by FR alone.
Evidence at a glance
Registered source records
10
May include specifications, retail pages, reviews and notes. This is not a count of independent listening reviewers.
Specifications and sourcesMeasurement curve
Registered
Different fixtures, tips and insertion depths are not a controlled comparison. Check the recorded conditions.
Specifications and sourcesProduct video links
12
Link count is not a watched-video count. Each link states whether metadata, captions or scenes were checked.
Specifications and sourcesAssessment status
Retained editorial assessment
Signature evidence and certainty of the score are separate.
Specifications and sourcesHome / Vocal emphasis / Zephyr
Reviewed reviews
Listening review 6 · All records 13Listening review 6 · Owner account 1 · Reference 6
- 1 코토리 제퍼(Kotori Zephyr) 후기 - 꿀 발라놨나? - 헤드폰 마이너 ... ↗ · gall.dcinside.comReference
Exact-model title found in search. The body was not secured in this pass; listening details, author and supply relationship remain unconfirmed.
Reference link - 2 1. theheadphonelist.com · Original source ↗ · theheadphonelist.comListening reviewSource notes
The Headphone List — Kotori Audio Zephyr
중역 중심, 보컬 전진, 타이트한 중저음; 초저음·초고역과 무대 폭은 제한적.
- 3 2. nobordersaudiophile.wordpress.com · Original source ↗ · nobordersaudiophile.wordpress.comListening reviewSource notes
No Borders Audiophile — KOTORI ZEPHYR
음악적인 중역과 보컬, 비교적 넓은 좌우 표현; 위치 분리와 깊이는 제한적.
- 4 3. gall.dcinside.com · Original source ↗ · gall.dcinside.comOwner accountSource notes
코토리 제퍼, 퍼포머7, 카다스 티 프로 한번에 후기
제퍼는 악기가 약간 뒤로 물러나지만 보컬을 잘 살려준다고 청취 보고. 초보자임을 밝힌 짧은 소감이며 자세한 저음/고음/무대 분석은 없음.
중고 자비 구매 명시
- 5 4. blog.naver.com · Original source ↗ · blog.naver.comListening reviewSource notes
순수하고 매력 있는 사운드 — 코토리 제퍼 청음기
기본 성향은 약간 얇고 담백하며 중고역이 선명한 쪽. 여성 보컬 뉘앙스와 밝고 자연스러운 고역 디테일, 깨끗한 배경을 호평하되 온기·잔향은 적고 피아노의 저음 무게와 에너지는 아쉽다고 보고. 치찰음이 과하지 않음. 케이블 교체 효과를 물리적 사실로 적용하지 않고 기본 성향 평가만 채택.
자비 구매/제공/금전 관계 미명시. 여러 케이블·팁·앰프 조합 사용.
Naver source body read directly
Multiple sources, cables and tips. Praises thick mids and a broad stage, with reservations about bass extension and piano decay.
2026-10-25 - 6 5. blog.naver.com · Original source ↗ · blog.naver.comListening reviewSource notes
담백함 속에 여운을 드리운다: 코토리 오디오 제퍼
부드럽고 담백한 음색, 살짝 먼 듯한 온기 있는 중역과 편안한 고역을 보고. 깨끗한 저음, 개방감과 해상도는 긍정적이나 질감·무게가 가볍다고 평가. 밝고 건조하다는 다른 후기와 온도/고역 자극의 차이를 보존.
더그랩사운드 청음 대여. 금전 지원·내용 간섭 없다고 명시.
Naver source body read directly
- 7 6. www.reddit.com · Original source ↗ · reddit.comListening reviewSource notes
Kotori Audio Zephyr review: Understated Grace
빠른 어택·제어되는 감쇠와 그루브를 호평하되 특정 베이스 라인은 약간 부푼다고 보고. 중역은 조금 물러나며 분석적 디테일/분리의 최상급보다는 자연스러운 음색·몰입감 지향. 고역 치찰음·자극이 잘 제어되고 다소 안전하며 팁 밀폐에 민감.
개인 후원자 대여 유닛. 본체+교체 케이블만 수령; 제조사 제공 미표기.
Public article and comment text opened and read directly.
- 8 7. www.reddit.com · Original source ↗ · reddit.comListening reviewSource notes
Kotori Audio Zephyr - A Refreshing Breeze
단단하고 제어되는 저음·정확한 공간 배치를 호평하지만 일부 곡에서 초저음 럼블 부족. 낮은 중역 존재감이 줄며 특정 보컬/현악이 콧소리·혼키·상단 에너지 부족으로 들림. 깊은 착용에서 고역이 매끈. 자연스러운 모든 보컬로 일반화할 수 없는 구체적 반례.
mour****monk·개인 후원자가 제공한 대여/리뷰 유닛. 같은 대여 네트워크 조건.
Public article and comment text opened and read directly.
- 9 8. www.e-earphone.jp · Original source ↗ · e-earphone.jpReferenceSource notes
女性ボーカルに光るものを感じるモニターライクサウンド
전 대역의 고른 표현과 압박감 적은 저음, 뻗는 여성 보컬·섬세한 심벌을 호평. 판매점 평균 별점은 근거에서 제외.
판매점 호스팅 사용자 후기; 인증 reviewer 표시, 실제 구매/제공 여부는 미명시. FIIO M27 Ti와 곡 목록 명시.
Public listening-review text read directly; video not watched
판매점 호스팅 사용자 후기; 인증 reviewer 표시, 실제 구매/제공 여부는 미명시. FIIO M27 Ti와 곡 목록 명시.
- 10 9. cafe.naver.com · Original source ↗ · cafe.naver.comReferenceSource notes
닥터헤드폰 · 코토리 오디오 제퍼 리뷰
제퍼를 담백하고 부드러우며 자연스러운 균형형으로 듣고, 보컬 감정과 섬세한 표현을 특히 호평한다. 저음은 깔끔하고 자극이 적으며, 무대 폭 자체는 크지 않지만 제한된 공간에서 입체 표현이 좋다고 한다.
지난1월 구입·2달이상사용 명시; 별도 제공·광고 명시 없음
카페 내부 검색 후 사용기 본문 직접 열람. 2달이상소유; 기본Carbon3케이블·기본검은총알형팁. 기준FiiOM23직결, MuseM6Double·Mojo2·iFiValkyrie추가비교. 주관소스차이를필수구동조건으로변환안함.
Zephyr sounds restrained, smooth and naturally balanced, with expressive vocals and delicate detail. Bass is clean and the presentation non-aggressive; the stage is not especially wide, but makes effective use of depth and placement.
Original setup and disclosure (Korean)2달이상소유; 기본Carbon3케이블·기본검은총알형팁. 기준FiiOM23직결, MuseM6Double·Mojo2·iFiValkyrie추가비교. 주관소스차이를필수구동조건으로변환안함. · 지난1월 구입·2달이상사용 명시; 별도 제공·광고 명시 없음
- 11 10. cafe.naver.com · Original source ↗ · cafe.naver.comReferenceSource notes
닥터헤드폰 · GEEK WOLD GK20 PRO 이어폰 사용기입니다. — 코토리 제퍼 비교
제퍼는 기본기가 충실하면서 조용하고 고급스러운 소리라고 짧게 평가한다. GK20 PRO와 결이 다르다는 비교 외에 보컬·저음·고역 세부 정보는 없다.
제퍼실제청취문맥; 구매·제공·광고관계미명시
카페 내부 검색 후 사용기 본문 직접 열람. GK20PRO중심다기종비교; 제퍼정확소스·팁미기재.
Zephyr is briefly called fundamentally competent, quiet and refined, with a different character from GK20 PRO. The comparison gives no detailed bass, vocal or treble information.
Original setup and disclosure (Korean)GK20PRO중심다기종비교; 제퍼정확소스·팁미기재. · 제퍼실제청취문맥; 구매·제공·광고관계미명시
- 12 Search scope and exclusions ↗Reference
- 13 Full Naver review scope ↗Reference
YouTube videos for this product
12 itemsVerification level: A registered link does not mean completed audiovisual analysis. Check the scope on each video.
- 1 봄바람을 들려주는 이어폰, 코토리오디오 제퍼 리뷰 ↗Metadata checked · audiovisual analysis incomplete
- 2 Kotori Audio Zephyr - $150 Neutral, Natural Stage Monitor - Honest Audiophile Impressions ↗Metadata checked · audiovisual analysis incomplete
- 3 Kotori Audio Zephyr Review | A Breath of Fresh Air in the $150 Segment? | TWX ↗Metadata checked · audiovisual analysis incomplete
- 4 Kotori Audio Zephyr IEM Review ↗Metadata checked · audiovisual analysis incomplete
- 5 Kotori Audio Zephyr earphones review — unique tuning ↗Metadata checked · audiovisual analysis incomplete
- 6 Kotori Audio Zephyr Unboxing - This Feels Expensive! ↗Metadata checked · audiovisual analysis incomplete
- 7 Kotori Audio Zephyr - Transparent & Accurate Hybrid IEM ↗Metadata checked · audiovisual analysis incomplete
- 8 RARE NEUTRAL IEM |Kotori Audio Zephyr ↗Metadata checked · audiovisual analysis incomplete
- 9 KOTORI AUDIO ZEPHYR ↗Metadata checked · audiovisual analysis incomplete
- 10 A Neutral Sounding IEM with Great Details: Kotori Zephyr ↗Metadata checked · audiovisual analysis incomplete
- 11 고수가 만든 섬세함, 선명한 집착의 사운드 | Kotori Audio Zephyr ↗Metadata checked · audiovisual analysis incomplete
- 12 ✋⚠️Kotori Audio Zephyr - Flat sound signature for $150 bucks⁉️ ↗Metadata checked · audiovisual analysis incomplete