2annIEM COLLECTIONDates shown per source · Layout 2026.10.26

QOA Bijou

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Product information

At a glance

Emphasis: Balanced bandsTimbre: Warm toneListening: Versatile listening

A candidate for listeners seeking overall balance and continuity, warmth and body and moving between genres.

Technical / Musical 82 / 87Retained editorial scores8 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

Release month
2026-04
Driver configuration
1DD + 1BA + 1BC
Impedance
26Ω
Earpiece connector
0.78 mm 2-pin
Cable length
1.2 m, detachable
Catalogue reference · KRW
₩121,122USD 81.63

A recorded reference amount, not a live lowest price.

QOA Bijou 유닛

Basic specifications

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

Driver configuration1DD + 1BA + 1BC
Impedance26Ω
Sensitivity100 dB stated; sensitivity reference unspecified
Weight and scopeNo established value in the checked records. Value not established · checked source ↗ · fujiya-avic.co.jp
Nozzle diameterNo established value in the checked records. Value not established · checked source ↗ · fujiya-avic.co.jp
Included accessoriesIEMs, 6 silicone tip sets, cable, PU case, manual/warranty; Japan-only USB-C adapter Specification source ↗ · soundearth.jp
Cable conductor / materialSilver-plated OFC
Cable cores / braid7-strand construction; 0.06 mm × 7 wires per strand (Japan distributor) Specification source ↗ · soundearth.jp
Cable length1.2 m, detachable Specification source ↗ · soundearth.jp
Earpiece connector0.78 mm 2-pin
Source plugJapan package: 3.5 mm; USB-C adapter included Specification source ↗ · soundearth.jp

Retained product source ↗ · fujiya-avic.co.jp · Specification evidence · Research coverage

페이지가로봇확인화면을반환하여사양본문미확인. 추가접근반복하지않음. 다른QOA무게/노즐전용금지.

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.

QOA Bijou · 기존 제품 자료 ↗ · fujiya-avic.co.jp
Price and release evidence
Driver and design evidence

1DD + 1BA + 1BC

Recorded model / design notes (original language): 3D 프린트 수지 셸의 트라이브리드입니다. BA 공급사나 모델 번호는 확인 자료가 일치할 때만 채택하며 특정 업체 제품으로 추정하지 않습니다.

Product specifications / model-specific reference ↗ · fujiya-avic.co.jp

Additional product reference: QoA bijou; what do you guys think, is this a good purchase? — 소유자 댓글 묶음 · reddit.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.

Blue 3D-printed resin shells.

Owner's current primary category: Balanced. A 10mm DD, custom BA and 7mm bone-conduction tribrid. Frequency emphasis and timbre are listed separately.

Representative character: Versatile listening

2ann quick note

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Sound, assessment & measurements

Technical evaluation 82 / 100

Bass86
Mids82
Treble80
Spatial presentation84

Evidence behind the technical assessment

Treble presentation: Usually restrained, although lower-treble sensitivity differs. ↗

Stage and separation: Immersive layering is reported; sharply separated imaging is less established. ↗

Read sources and disagreements ↗

Musical enjoyment 87 / 100

Natural timbre87
Emotional expression88
Immersion90
Rhythm and dynamics88
Vocal and instrumental liveliness88
Long-session comfort85

Evidence behind musical enjoyment

Bass character: Weighty and deep; some hear elastic placement rather than blunt impact. ↗

Vocals and mids: Warm vocals may recede, but one detailed Japanese account places them centrally. ↗

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

An all-round listening role rather than one narrow attraction. It does not imply flat frequency response or optimality for every genre. 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. Warm vocals may recede, but one detailed Japanese account places them centrally. Overall timbre: Warm tone. These are separate representative axes; fit, nozzle settings and contrary accounts remain in the reviewed evidence.

Differences by listening conditions: A Velvet-tip first impression and one Japanese note favor vocal focus, with softer attack. Treble roughness at higher levels remains possible despite bass emphasis.

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

Design and model identity

Blue 3D-printed resin shells.

Source ↗

Bass quantity and texture

Weighty and deep; some hear elastic placement rather than blunt impact.

Vocal placement and midrange

Warm vocals may recede, but one detailed Japanese account places them centrally.

Treble and fatigue

Usually restrained, although lower-treble sensitivity differs.

Stage, separation and imaging

Immersive layering is reported; sharply separated imaging is less established.

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.

QoA bijou; what do you guys think, is this a good purchase? — 소유자 댓글 묶음 ↗ — 소유자들은 우퍼 같은 울림과 강한 저음을 보고하되 한쪽은 저음이 두껍고 탁하다고, 다른 쪽은 탁하지 않다고 한다. 남성 대사의 이상한 울림, 보컬 치찰음·자극을 EQ로 줄였다는 경험도 있다. 팁을 바꾼 사용자는 자극이 없다고 해 의견 분산을 보여준다.

Listening suggestions and selection points

Alternate vocal-led and rhythm-heavy music. Focus on whether the relationship between bass, voice and treble stays appealing across different arrangements rather than relying on one striking first impression.

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 · warmth and body
  • moving between genres

Consider alternatives first if you prefer

  • a pronounced emphasis in one frequency band
  • a leaner, cooler tone ahead of warmth

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.

Kiwi Ears Étude

Candidate treble observation: Usually clear and smooth, with cymbal sharpness reported by some listeners.Read the observation source ↗

Shared classification: overall balance and continuity · warmth and body

Different classification: Listening character: moving between genres → calm, extended listening

Driver configuration: 1DD + 3BA + 1 KVT

Compare the pair

Vzonis DDB-03

Candidate treble observation: Calm to some, sharp or dry to others.Read the observation source ↗

Shared classification: overall balance and continuity · moving between genres

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

Driver configuration: 1DD + 1BA + 1BC · 골전도 하이브리드

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: Japan package: 3.5 mm; USB-C adapter included
  • Cable length: 1.2 m, detachable
  • Impedance: 26Ω
  • Sensitivity: 100 dB stated; sensitivity reference unspecified
Specifications and sources

Included accessories

  • Included accessories: IEMs, 6 silicone tip sets, cable, PU case, manual/warranty; Japan-only USB-C adapter
  • Cable conductor / material: Silver-plated OFC
  • Cable cores / braid: 7-strand construction; 0.06 mm × 7 wires per strand (Japan distributor)
Specifications and sources

Frequency-response graph

Measurement
QOA Bijou 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
Redrawn from published curve coordinates · Normalized at 1 kHz · Checked 2026-10-07SIEC 측정 · Published average-curve coordinates출처: Reference Audio Analyzer ↗Results vary with measurement equipment, tips and fit. Treat results above 8 kHz as indicative.
Reading limits

Public numerical data describe this sample and setup, not all production variation. 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 10

Listening review 5 · Owner account 1 · Reference 4

  • 1 1. bassaudio.net · Original source ↗ · bassaudio.netListening review
    Source notes

    Bass Audio · Bijou 청취 리뷰

    실청취를 명시한 판매점 리뷰: 따뜻한 V형, 큰 저음과 뒤로 간 보컬, lower treble 주의.

  • 2 2. review.kakaku.com · Original source ↗ · review.kakaku.comListening review
    Source notes

    가격.com · 鴻**三 Bijou 청취 리뷰

    대여 샘플 청취: 양감 우세한 저음, 따뜻한 중고역과 절제된 초고역.

    Relationship classification retained from the reviewed record

  • 3 3. hifimaitai.com · Original source ↗ · hifimaitai.comListening review
    Source notes

    HiFi Mai Tai — QoA Bijou, The Big Bold and Blue

    저음과 보컬 중심, 따뜻하고 두꺼운 중역, 비교적 부드러운 고역. 보컬은 V형보다 앞으로 나오고 무대·이미징을 높게 평가한다. AI 예상점수 섹션은 청취 근거에서 제외했다.

    Purchase or supply relationship was not established in the body.

  • 4 4. www.ixbt.com · Original source ↗ · ixbt.comListening review
    Source notes

    iXBT Live — QoA Bijou, warmth richness atmosphere

    풍부한 저음과 따뜻한 음색, 자극 없는 반짝이는 고역을 보고한다. 보컬·중역은 뒤로 가는 V형이라고 평가해 HiFi Mai Tai의 보컬 전진 의견과 다르다. 공간은 정확하나 표현력·해상력이 특별히 뛰어나지는 않다고 설명한다.

    Purchase or supply relationship was not established in the body.

  • 5 5. www.reddit.com · Original source ↗ · reddit.comOwner account
    Source notes

    QoA bijou; what do you guys think, is this a good purchase? — 소유자 댓글 묶음

    소유자들은 우퍼 같은 울림과 강한 저음을 보고하되 한쪽은 저음이 두껍고 탁하다고, 다른 쪽은 탁하지 않다고 한다. 남성 대사의 이상한 울림, 보컬 치찰음·자극을 EQ로 줄였다는 경험도 있다. 팁을 바꾼 사용자는 자극이 없다고 해 의견 분산을 보여준다.

    I have it·I bought this·Explorer도 소유한다고 밝힌 댓글만 채택. 구입했다고 직접 밝힌 댓글 있음. 제품 제공은 확인되지 않음.

    웹 검색 도구가 반환한 실제 댓글 본문 확인; open은 DisabledError · 조건·독립성 확인 제한으로 독립 작성자의 추가 합의로 계산하지 않음

  • 6 6. note.com · Original source ↗ · note.comListening review
    Source notes

    QoA Bijou レビュー｜カクテルの濃さを骨伝導で描く

    저음의 깊이·입체감은 있으나 보컬을 중심에 둔다는 반대 의견. 여성보컬·매끈한 흐름 선호.

    구매·대여·제품제공 관계 확인되지 않음.

    원문 곡별 청취 본문·대역별 문단 직접 open (turn680view3/turn686view2/turn705view3); 전체 824줄 중 확인된 청취 섹션, 영상 아님.

    구매·대여·제품제공 관계 확인되지 않음.

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

    닥터헤드폰 · QoA bijou(1DD,1BA,1BC) 간단 후기

    도착 직후 첫인상에서 보컬을 놓치지 않는 중음과 다소 무른 저음 타격을 언급했습니다. 잘 맞는 벨벳팁으로 저음 깊이와 공간의 여유가 살아났다고 평가했습니다. 고음은 평범하고 미세 디테일에는 한계가 있다는 의견이므로, 골전도 구성만으로 상급 성능을 단정하지 않습니다.

    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. 막 수령한 첫인상. Velvet 이어팁 착용 적합성 명시. 소스·음량 미기재.

    Arrival-day first impressions with Velvet tips. Praises vocal presence and bass depth, but notes soft impact, ordinary treble and detail limits. BC contribution is the listener’s interpretation.

    2026-10-26

    The first-day impression highlights audible vocals and a somewhat soft bass attack. With well-fitting Velvet tips, the writer perceives more bass depth and less confined space. Treble is described as ordinary and fine-detail limits remain apparent; the bone-conduction configuration alone does not establish high-end performance.

    Original setup and disclosure (Korean)

    막 수령한 첫인상. Velvet 이어팁 착용 적합성 명시. 소스·음량 미기재. · 닥터헤드폰 회원의 직접 구매·보유·청취 감상; 본문에 판매처 소속·협찬 고지 확인되지 않음. 같은 작성자의 다른 게시물은 한 관찰자로 계산.

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

    닥터헤드폰 · qoa 비쥬 간단 후기

    비쥬를 묵직하고 깊은 저음과 중역 잔향이 매력적인 제품으로 보았으며, 전방은 평면적이고 뒤는 입체적인 공간을 언급했습니다. 좌우 폭은 제한적이고 음량이 커지면 고음이 거칠고 불안정해진다는 비판도 있습니다. 에튀드보다 저음이 묵직하고 공격적이지만 골전도 체감과 역동성은 덜하다는 비교입니다.

    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. 번들 조합. iFi Diablo 2 터보 모드 사용; 높은 음량에서 고음 불편으로 낮춰 들었다는 개인 조건. 노브 위치는 다른 장비의 권장 음량으로 전용하지 않음. Kiwi Ears Étude 직접 비교.

    Bijou offers weighty, deep bass and appealing midrange decay to this owner. They describe flatter front imaging with depth behind, but limited lateral width and increasingly rough treble at higher volume. Compared with Étude, Bijou sounds heavier and more aggressive yet less overtly dynamic or bone-conduction-forward. These are level- and track-dependent impressions.

    Original setup and disclosure (Korean)

    번들 조합. iFi Diablo 2 터보 모드 사용; 높은 음량에서 고음 불편으로 낮춰 들었다는 개인 조건. 노브 위치는 다른 장비의 권장 음량으로 전용하지 않음. Kiwi Ears Étude 직접 비교. · 닥터헤드폰 회원의 직접 구매·보유·청취 감상; 본문에 판매처 소속·협찬 고지 확인되지 않음. 같은 작성자의 다른 게시물은 한 관찰자로 계산.

  • 9 Search scope and exclusions ↗Reference
  • 10 Full Naver review scope ↗Reference

YouTube videos for this product

13 items

Verification level: A registered link does not mean completed audiovisual analysis. Check the scope on each video.