2annIEM COLLECTIONDates shown per source · Layout 2026.10.26

COZOY D1

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Product information

At a glance

Emphasis: Balanced bandsTimbre: Neutral toneListening: Clarity and detail

A candidate for listeners seeking overall balance and continuity, a tone not classified as especially warm or bright and examining instrumental outlines and small details.

Technical / Musical 78 / 84Retained editorial scores14 Source recordsSignature evidence · MediumPrice record date · 2026-10-10Evidence for the catalogue reference

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 ↗

Check before choosing · Verification scope

Core product facts

Driver configuration
1DD (10mm Graphene)
Impedance
32Ω
Earpiece connector
0.78 mm 2-pin
Cable length
1.2 m
Catalogue reference · KRW
₩43,083USD 29.60

A recorded reference amount, not a live lowest price.

COZOY D1 유닛

Photo source: www.cozoyhifi.com

Basic specifications

Specifications retained from product records; missing values are not estimated. Korean source wording is preserved where no verified translation exists.

Driver configuration1DD (10mm Graphene)
Impedance32Ω
Sensitivity100 dB/Vrms @ 1 kHz Specification source ↗ · conceptkart.com
Weight and scopeNo established value in the checked records. Value not established · checked source ↗ · cozoyhifi.com
Nozzle diameterNo established value in the checked records. Value not established · checked source ↗ · cozoyhifi.com
Included accessoriesIEMs, 7 pairs of tips, cable, manual Specification source ↗ · conceptkart.com
Cable conductor / materialSilver-plated OCC
Cable cores / braidNo established value in the checked records. Value not established · checked source ↗ · cozoyhifi.com
Cable length1.2 m Specification source ↗ · conceptkart.com
Earpiece connector0.78 mm 2-pin Specification source ↗ · conceptkart.com
Source plug3.5 mm; microphone option separate

Retained product source ↗ · cozoyhifi.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.

The full package list is not verified. Contents may vary by option and region.

COZOY D1 · 기존 제품 자료 ↗ · cozoyhifi.com
Price and release evidence
Driver and design evidence

1DD (10mm Graphene)

Recorded model / design notes (original language): 제조사는 그래핀 진동판과 3D 프린트 셸을 설명하며, 정식 유통사는 의료용 등급 수지를 안내합니다.

Product specifications / model-specific reference ↗ · cozoyhifi.com

Additional product reference: COZOY D1 レビュー · trefle-lab.com

Additional product reference: COZOY D1 10일 사용 리뷰 · 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.

Graphene-diaphragm marketing and a 3D-printed resin shell.

A simple 10mm dual-magnet, dual-cavity DD intended as an accessible wired IEM. Frequency emphasis and timbre are listed separately.

Representative character: Clarity and detail

2ann quick note

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Sound, assessment & measurements

Technical evaluation 78 / 100

Bass79
Mids81
Treble78
Spatial presentation77

Evidence behind the technical assessment

Treble presentation: Crisp and cool; some hear noisy hi-hats while others hear smoothness. ↗

Stage and separation: Average-to-small width with clear depth, or a broader cinematic impression. ↗

Read sources and disagreements ↗

Musical enjoyment 84 / 100

Natural timbre86
Emotional expression85
Immersion84
Rhythm and dynamics85
Vocal and instrumental liveliness86
Long-session comfort82

Evidence behind musical enjoyment

Bass character: Moderate weight and extension; tightness changes across reports and tips. ↗

Vocals and mids: Clear and often forward vocals, sometimes lighter male body. ↗

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

Definition, separation and openness attract attention. This is not a technical grade or a claim of measured accuracy. This editorial browsing category is drawn from retained model-specific reviews; it does not exclude other listening uses.

Similar listening character ↗

Frequency emphasis: Balanced bands. Clear and often forward vocals, sometimes lighter male body. Overall timbre: Neutral tone. These are separate representative axes; fit, nozzle settings and contrary accounts remain in the reviewed evidence.

Differences by listening conditions: Japanese accounts also report a cool presentation and prominent hi-hats; smoothness is conditional.

Concise English summaries distinguish product specifications, reviewed listening impressions and practical advice. Original source notes remain available below.

Design and model identity

Graphene-diaphragm marketing and a 3D-printed resin shell.

Source ↗

Bass quantity and texture

Moderate weight and extension; tightness changes across reports and tips.

Vocal placement and midrange

Clear and often forward vocals, sometimes lighter male body.

Treble and fatigue

Crisp and cool; some hear noisy hi-hats while others hear smoothness.

Stage, separation and imaging

Average-to-small width with clear depth, or a broader cinematic impression.

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.

COZOY D1 レビュー ↗ — 중립에 가까운 밝은 W형. 저음의 두께·무게는 다소 적지만 반응이 빠르고 킥 윤곽이 선명. 보컬·기타·피아노가 자연스럽고 선명하며 고음은 명료하고 매끄럽다고 평가. 공간과 깊이·정위감은 긍정적이나 환경에 따라 중고역이 자극 직전이라는 단서가 있음.

COZOY D1 10일 사용 리뷰 ↗ — 균형/뉴트럴, 타이트한 저음과 맑은 여성보컬, 부드러운 고음/낮은 피로. 좌우폭 준수·중앙이미징 안정. 기존 선명 활기 합의 보완. 소스/케이블 향상 주장은 조건 인상으로만 기록.

Listening suggestions and selection points

Try layered cymbals, strings or electronic effects if fine detail is a priority. Consider both intelligibility and fatigue on forceful recordings before equating brightness with resolution.

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.

Open supporting review records ↗

How to choose this product

Preferences that match

  • overall balance and continuity · a tone not classified as especially warm or bright
  • examining instrumental outlines and small details

Consider alternatives first if you prefer

  • a pronounced emphasis in one frequency band
  • 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.

Agasound PULSE

Candidate treble observation: Mild emphasis is reported; fatigue evidence is insufficient.Read the observation source ↗

Shared classification: overall balance and continuity · a tone not classified as especially warm or bright

Different classification: Listening character: examining instrumental outlines and small details → moving between genres

Driver configuration: 1DD (10mm Dual-Magnet)

Compare the pair

KBEAR Tourbillon X (Silver)

Candidate treble observation: Rounded and generally comfortable, with occasional upper-mid prominence.Read the observation source ↗

Shared classification: overall balance and continuity

Different classification: Timbre: a tone not classified as especially warm or bright → warmth and body

Driver configuration: 1DD (10mm CVD 코팅 카본 파이버)

Compare the pair

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: 0.78 mm 2-pin
  • Source plug: 3.5 mm; microphone option separate
  • Cable length: 1.2 m
  • Impedance: 32Ω
  • Sensitivity: 100 dB/Vrms @ 1 kHz
Specifications and sources

Included accessories

  • Included accessories: IEMs, 7 pairs of tips, cable, manual
  • Cable conductor / material: Silver-plated OCC
  • Cable cores / braid: No established value in the checked records. Value not established · checked source ↗
Specifications and sources

Frequency-response graph

Measurement
COZOY D1 frequency-response graphRedrawn from the disclosed source; see original conditions and limitations below.20501002005001k2k5k10k20k-40-30-20-100+10+20Published measurementFrequency (Hz)Relative response (dB; 1kHz = 0)
Source notes
Approximate values digitized from the graph · Normalized at 1 kHz · Checked 2026-10-07IEC 60318-4 클론·right 채널 공개 곡선 수치화출처: Pragmatic Audio ↗Results vary with measurement equipment, tips and fit. Treat results above 8 kHz as indicative.
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

Reviewed reviews

Listening review 5 · All records 21

Listening review 5 · Owner account 1 · Reference 15

  • 1 저렴하게 즐기는 게이밍"겸" 음감이어폰 COZOY D1 ↗ · 0db.co.krReference

    Exact-model title found in search. The body was not secured in this pass; listening details, author and supply relationship remain unconfirmed.

    Author: Author unconfirmed · Purchase/supply/loan relationship unconfirmed · 2026-10-25

    Reference link
  • 2 Cozoy d1 간단리뷰 ↗ · 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.

    Author: Author unconfirmed · Purchase/supply/loan relationship unconfirmed · 2026-10-25

    Reference link
  • 3 COZOY D1 (2) "뭔가 달라. ↗ · 0db.co.krReference

    Exact-model title found in search. The body was not secured in this pass; listening details, author and supply relationship remain unconfirmed.

    Author: Author unconfirmed · Purchase/supply/loan relationship unconfirmed · 2026-10-25

    Reference link
  • 4 신생구단이 선보인 요주의 1번 타자 - COZOY D1 이어폰 리뷰 ↗ · 0db.co.krReference

    Exact-model title found in search. The body was not secured in this pass; listening details, author and supply relationship remain unconfirmed.

    Author: Author unconfirmed · Purchase/supply/loan relationship unconfirmed · 2026-10-25

    Reference link
  • 5 COZOY D1 "뭔데 이건 ↗ · 0db.co.krReference

    Exact-model title found in search. The body was not secured in this pass; listening details, author and supply relationship remain unconfirmed.

    Author: Author unconfirmed · Purchase/supply/loan relationship unconfirmed · 2026-10-25

    Reference link
  • 6 1. mobileaudiophile.com · Original source ↗ · mobileaudiophile.comListening review
    Source notes

    Mobile Audiophile – Cozoy D1

    거의 중립적인 색채에 적당한 저음 강조, 활기 있고 반짝이는 고역.

  • 7 2. www.pragmaticaudio.com · Original source ↗ · pragmaticaudio.comListening review
    Source notes

    Pragmatic Audio – Cozoy D1

    약간 따뜻한 저음의 균형 중립, 활기 있으나 통제된 고음.

  • 8 3. trefle-lab.com · Original source ↗ · trefle-lab.comReference
    Source notes

    COZOY D1 レビュー

    중립에 가까운 밝은 W형. 저음의 두께·무게는 다소 적지만 반응이 빠르고 킥 윤곽이 선명. 보컬·기타·피아노가 자연스럽고 선명하며 고음은 명료하고 매끄럽다고 평가. 공간과 깊이·정위감은 긍정적이나 환경에 따라 중고역이 자극 직전이라는 단서가 있음.

    COZOY PR 기회 제공 및 금전 보상 없음 명시; 구매품으로 분류하지 않음

    COZOY PR 기회 제공 및 금전 보상 없음 명시; 구매품으로 분류하지 않음

  • 9 4. blog.naver.com · Original source ↗ · blog.naver.comListening review
    Source notes

    COZOY D1 10일 사용 리뷰

    균형/뉴트럴, 타이트한 저음과 맑은 여성보컬, 부드러운 고음/낮은 피로. 좌우폭 준수·중앙이미징 안정. 기존 선명 활기 합의 보완. 소스/케이블 향상 주장은 조건 인상으로만 기록.

    Real Sound 체험단·음현사 제품 제공, 자유 작성 명시

    Naver source body read directly

  • 10 5. blog.naver.com · Original source ↗ · blog.naver.comListening review
    Source notes

    COZOY D1 구매 후 이어팁 교체 청취

    순정팁 밀폐·좌우 착용 불균형으로 실망했다가 WaveletDesign Opus1 동봉팁으로 해결. 이후 안정된 톤과 정확한 타격 저음, 약간 고역 착색, 좁지만 명확한 스테레오, 적절한 해상도를 평가. EW200 대비 선호는 개인 비교로 구분.

    공동구매 자비 구매 명시

    Naver source body read directly

    Stock-tip fit varied considerably; Opus1 tips improved it. Evaluation with separate tips is not generalized to the stock package.

    2026-10-25
  • 11 6. blog.naver.com · Original source ↗ · blog.naver.comReference
    Source notes

    COZOY D1 리뷰

    실청감에서 단정하고 단단하게 끊기는 저음·럼블/슬램, 빠른곡과 복잡편성에서도 베이스가 보컬을 덮지 않는다고 호평. 가까운 선명 보컬, 높은 볼륨에도 비자극/차분 고역과 제한된 화려한 공기감. FR추론·그래핀 소재 원인 단정은 제외.

    음현사 공식수입사 제품 제공, 내용 간섭 없음

    Naver source body read directly

  • 12 7. blog.naver.com · Original source ↗ · blog.naver.comReference
    Source notes

    COZOY D1 장시간 청취 리뷰

    본인은 강저음 선호/치찰 민감. 싱글팁에서 부드럽게 넓게 깔린 저음, 가까운 선명 보컬과 좋은 분리, 심심한 저음 양감. JohnMayer 스네어는 찌름 경계나 피곤하지 않고 DuaLipa 치찰도 부담 적음. 비자극 장시간 음악 지향.

    음현사 제품 제공

    Naver source body read directly

  • 13 8. blog.naver.com · Original source ↗ · blog.naver.comReference
    Source notes

    COZOY D1 신생구단의 1번타자 리뷰

    약저음 강조 밸런스, 퍼지지 않는 단단하고 짧은 저음, 곡에 따라 반발 뒤인 중역이나 가까운 자연 보컬. 화려한 에어는 아니지만 답답하지 않고 치찰에서 약간 절제된 편안함. 상급소스 선호는 별도조건, 소재 원인 제외.

    RealSound·음현사 제품 제공, 가이드·간섭 없음

    Naver source body read directly

  • 14 9. blog.naver.com · Original source ↗ · blog.naver.comListening review
    Source notes

    COZOY D1 측정 리뷰 :: 신생 브랜드라기엔 감출 수 없는 노련함

    극저음 임팩트/탄력 있으나 기본팁 밀폐가 강하지 않아 부하거나 마스킹하지 않음. 한걸음 가까운 비자극 자연 보컬과 청량 고역. 아주 넓지는 않은 앞뒤/양옆 공간, 정위/분리와 복잡곡·게임/영화 만족. 측정 설명은 청감과 구별.

    음현사 지원, 의견 간섭 없음

    Naver source body read directly

  • 15 10. blog.naver.com · Original source ↗ · blog.naver.comReference
    Source notes

    COZOY D1 사운드 테스트 리뷰

    탄탄하고 따뜻한 저음, 복잡편성에서도 보컬이 묻히지 않는 분리. KA11에서 가공된 보컬 약간 날카로우나 심하지 않음, Whiplash는 넓은 무대와 탄탄한 베이스지만 다이나믹은 예상보다 차분. 소스별 선호 구별, 가격/소재 근거 제외.

    RealSound 체험단·음현사 제품 제공, 자유작성

    Naver source body read directly

  • 16 11. blog.naver.com · Original source ↗ · blog.naver.comReference
    Source notes

    COZOY D1: 3만원대에서 발견한 의외로 괜찮은 유닛

    청량하고 가벼운 밝은 톤, 적당한 저음과 부밍 적음, 안정된 자연 보컬, 평균 해상도/분리. 순정은 평면적·막힘, 교체케이블후 선호는 별도 조건. Aria2 비교에서는 D1 고역이 더 공격적이고 곡에 따라 피로하다고 보완. 귀 압박 장시간 불편. 다른 COZOY DAC회사 배경 설명은 사실확인 안되어 제외.

    여러 저가 이어폰 시도·보유 명시, 제공/자비 구매 미공개

    Naver source body read directly

  • 17 12. fugumikan.blog.fc2.com · Original source ↗ · fugumikan.blog.fc2.comReference
    Source notes

    ふ***ん文字起こし — COZOY D1

    약V의 선명하고 차가운 음색, 강한 스네어·전자음과 두툼한 저음. 공간은 평균~약간 좁지만 분리와 전후감 호평. 소재 원인·별점은 등급 제외.

    신제품 테스트 의뢰 명시; 제휴 링크; 정확 제공 계약 불명

    full_body_transcript: 공개 자막 전사 원문 읽음; 영상 재생/시청 없음; turn733view2 / turn726view3

    신제품 테스트 의뢰 명시; 제휴 링크; 정확 제공 계약 불명

  • 18 13. note.com · Original source ↗ · note.comOwner account
    Source notes

    ラピスラズリの爽やか青年に溺愛〜こいつはスゴい COZOY D1

    균형적 대역과 전진 남녀보컬, 밝은 고역. 하이햇이 크게 들려 저음강조 교체팁 선택. 넓은 무대·분리 호평은 다른 리뷰의 표준 폭과 병기.

    직접 구매 명시; 밝고 차가운 소리 선호 명시

    full_body: 청감/교체팁 본문 확인; turn726view2

    직접 구매 명시; 밝고 차가운 소리 선호 명시

  • 19 14. cafe.naver.com · Original source ↗ · cafe.naver.comReference
    Source notes

    닥터헤드폰 · 저점을 높여버린 COZOY D1 리뷰

    D1은 충분한 저음과 중고음이 매끄럽게 이어지고 자극이 적으며, 넓게 울리는 공간이 인상적이라고 평가했습니다. 반면 낮은 음량의 복잡한 구간은 뭉칠 수 있고 정위·개방감과 극세부 표현에는 한계를 언급했습니다. 박스의 그래프를 거론하지만 AI로 만든 음색 비유 그림과 실제 측정 도표는 구분해야 합니다.

    A Dr. Headphone member's purchase, ownership and listening account. Seller affiliation or sponsorship was not established in the body. Posts by the same author count as one observer.

    카페 내부 검색 후 사용기 본문 직접 열람. 직접 구매. 기본 흰색팁 + SIMGOT LC5 4.4 케이블. FiiO M21 또는 CH-Amp 사용, 음량별 차이 관찰. 3.5 순정 조합은 더 안정적으로 들렸다고 별도 언급. 정확 볼륨 수치는 다른 기기의 권장값으로 전용하지 않음.

    D1 combines substantial bass with smoothly connected mids and treble, low perceived harshness and spacious decay. Complex passages can blur at lower levels, while precise localization, openness and finest detail remain limited. The post mentions a box response graph, but AI-generated mood illustrations are distinct from actual measurement plots and require visual verification.

    Original setup and disclosure (Korean)

    직접 구매. 기본 흰색팁 + SIMGOT LC5 4.4 케이블. FiiO M21 또는 CH-Amp 사용, 음량별 차이 관찰. 3.5 순정 조합은 더 안정적으로 들렸다고 별도 언급. 정확 볼륨 수치는 다른 기기의 권장값으로 전용하지 않음. · 닥터헤드폰 회원의 직접 구매·보유·청취 감상; 본문에 판매처 소속·협찬 고지 확인되지 않음. 같은 작성자의 다른 게시물은 한 관찰자로 계산.

  • 20 Search scope and exclusions ↗Reference
  • 21 Full Naver review scope ↗Reference

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