BASN Bmaster Bmaster5
A hybrid 10mm DLC dynamic and four BA driver array delivers crisp transients and powerful bass, while the detachable silver-plated OFC cable supports interchangeable 3.5mm and 4.4mm plugs. The build uses durable PE connectors, adjustable ear hooks, and comes with an aluminum hard case and leather pouch for lasting comfort and portability. These IEMs suit drummers and stage musicians who need bass-forward, noise-isolated monitoring; weak mic performance makes them poor for calls.
Snapshot
Pros & Cons
Pros
- Strong sound (93th percentile) 93th
- Strong social proof (86th percentile) 86th
- Strong build (70th percentile) 70th
Cons
- Below average comfort (1th percentile)
- Below average anc (29th percentile)
- Below average user sentiment (31th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews — so you can see whether early praise held up.
- Q1 202668/100
Buyers praise sound quality, comfort, and customer service. Some early defects reported (cable, left ear) but were promptly replaced by the company.
- Excellent sound quality and clarity, superior to other brands.
- Comfortable for long wear with good fit and replaceable cables.
- Mixed experience: some early failures but resolved well by customer service.
- Cable and left ear failed after few uses; sound cutting off reported.
- Q4 202560/100
Buyers praised sound quality, build, and accessories but reported durability issues with ear caps falling off and a short circuit.
- Good sound quality with satisfactory bass, clear audio, and a decent soundstage.
- Ear caps fall off repeatedly, requiring gluing; issue persists after replacement.
- One unit developed a short circuit after a few months.
- Bass performance depends on using the provided memory foam ear tips instead of silicone.
Based on 21 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | in-ear |
| Wearing Style | ear-hook |
| Ear Tips | 12 sizes |
| Weight | 0.5 kg / 1.0 lbs |
Audio
| Driver Type | hybrid |
| Driver Size | 8 |
| Drivers | 5 |
| Impedance | 13 |
| Sensitivity | 107 |
| Codecs | BASN Bmaster5 in Ear Monitors, 1DLC Diaphragm+4BA 5 Drivers IEM Earphones with Silver-Plated OFC Cable, Noise Isolation Wired Earbuds for Musicians (Starlight Gold) |
Noise Control
| ANC | No |
| Transparency | No |
Connectivity
| Wireless | No |
| Wired Connector | 3.5mm |
Earbud Battery
| Charging | USB-C |
Case Battery
| Case Charging | USB-C |
Microphone
| Microphone | Yes |
Features
| Touch Controls | Yes |
| Bone Conduction | No |
| Water Resistance | Water-Resistant |
vs Competition
| Spec | BASN Bmaster Bmaster5 | Technics EAH-AZ100 EAH-AZ100 | Sony WF-1000XM6 WF-1000XM6 | Samsung Galaxy Buds Buds3 Pro | Bose QuietComfort Ultra 896637-0010 | Apple AirPods Pro MFHP4LL/A |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | hybrid | Dynamic | Dynamic | Dynamic | Dynamic | Dynamic |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Bluetooth Version | - | 5.3 | 5.3 | 5.4 | 5.3 | 5.3 |
| Battery Life Hours | - | 8 | 8 | 6 | 6 | 8 |
| Case Battery Hours | - | 28 | 24 | 26 | 18 | 24 |
| Water Resistance | Water-Resistant | IPX4 | IPX4 | IP57 | IPX4 | IP57 |
| Multipoint | - | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| BASN Bmaster Bmaster5 | 28.9 | 35.3 | 69.7 | 92.8 | 46.9 | 0.7 | 30.9 | 39.7 | 86 |
| Technics EAH-AZ100 EAH-AZ100 Compare | 96.7 | 96.8 | 78.6 | 99 | 78.9 | 93.3 | 91.9 | 99 | 64.6 |
| Sony WF-1000XM6 WF-1000XM6 Compare | 96.7 | 99.8 | 78.6 | 96 | 75.5 | 70.6 | 79.1 | 99 | 94.1 |
| Samsung Galaxy Buds Buds3 Pro Compare | 96.7 | 96.8 | 98.7 | 91.7 | 72.5 | 93.3 | 79.1 | 99.6 | 86 |
| Bose QuietComfort Ultra 896637-0010 Compare | 96.7 | 90 | 78.6 | 96.2 | 46.9 | 93.3 | 91.9 | 97.7 | 94.1 |
| Apple AirPods Pro MFHP4LL/A Compare | 96.7 | 80.1 | 98.7 | 89.2 | 75.5 | 70.6 | 0 | 97.7 | 99.7 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
