Koss UR40
The titanium-coated diaphragms and neodymium magnet structures deliver accurate sound across a wide 15-22,000 Hz frequency range in a lightweight 186g frame. Its hybrid design combines closed leatherette cushions for bass isolation with screened earcups that maintain ambient awareness. This wired headphone is best for budget-conscious home listeners who prioritize sound accuracy and lightweight comfort over call quality.
Form Factor over-ear
driver type titanium
driver size mm 40
impedance ohms 60
open closed back semi-open
43 Overall Score
Price R$284
Snapshot
Pros & Cons
Pros
- Strong comfort (97th percentile) 97th
- Strong sound (71st percentile) 71st
- Strong affordability (69th percentile) 69th
- Strong anc (68th percentile) 68th
Cons
- Below average mic (15th percentile)
- Below average connectivity (19th percentile)
- Below average build (33rd percentile)
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | over-ear |
| Open/Closed | semi-open |
| Foldable | Yes |
| Weight | 0.2 kg / 0.4 lbs |
| Ear Cushion | leatherette |
| Headband | mesh sling |
Audio
| Driver Type | titanium |
| Driver Size | 40 |
| Drivers | 1 |
| Freq Min | 15 |
| Freq Max | 22000 |
| Impedance | 60 |
| Sensitivity | 98 |
Noise Control
| ANC | No |
| Transparency | Yes |
Connectivity
| Wireless | No |
| Wired Connector | 3.5mm |
| Detachable Cable | No |
| Cable Length | 1.22 |
Microphone
| Microphone | No |
| Boom Mic | No |
vs Competition
| Spec | Koss UR40 | Sennheiser HDB 630 | Bowers & Wilkins Px8 S2 | Sony WH-1000XM5 | Bose QuietComfort Ultra 890101-0100 | Bang & Olufsen 980 980 |
|---|---|---|---|---|---|---|
| Form Factor | over-ear | over-ear | over-ear | over-ear | over-ear | over-ear |
| Driver Type | titanium | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | 40 | 42 | 40 | 30 | - | 40 |
| Impedance Ohms | 60 | 480 | - | 48 | 32 | 24 |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Open Closed Back | semi-open | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.2 | 5.3 | 5.2 | 5.4 | 5.1 |
| Battery Life Hours | - | 60 | 30 | 30 | 30 | 23 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof | Affordability |
|---|---|---|---|---|---|---|---|---|---|
| Koss UR40 | 67.5 | 14.9 | 33.1 | 70.5 | 46.3 | 97.3 | 19 | 46.1 | 68.9 |
| Sennheiser HDB 630 Compare | 98.5 | 79.9 | 75 | 97.7 | 91.4 | 43.3 | 98.2 | 95 | 4.4 |
| Bowers & Wilkins Px8 S2 Compare | 98.5 | 98.9 | 94.9 | 98.7 | 77.8 | 50.4 | 97.4 | 95 | 2.7 |
| Sony WH-1000XM5 Compare | 98.5 | 97.9 | 98.5 | 89.4 | 77.8 | 78.6 | 98.8 | 77.7 | 8.8 |
| Bose QuietComfort Ultra 890101-0100 Compare | 94.7 | 73.4 | 94.9 | 49.9 | 77.8 | 78.6 | 99.8 | 83.8 | 8.2 |
| Bang & Olufsen 980 980 Compare | 98.5 | 97.9 | 75 | 98.3 | 74.3 | 74.8 | 95.1 | 89.8 | 2.7 |
Price
Value & Pricing
From R$284
Amazon 1 offer From R$284
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
