Detailed comparison and review of Koss UR 23i and Bang & Olufsen Beoplay H9. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Koss UR 23i | Bang & Olufsen Beoplay H9 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 22.5 cm | |
| Width | - | 19.7 cm | |
| Depth | - | 4 cm | |
| Weight | - | 285 g | |
| Colour | White | Black | Argilla grey | Black | |
| Body Material | - | Anodised aluminium | |
| Earpad Material | - | Leather | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Koss UR 23i | Bang & Olufsen Beoplay H9 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | AAC, aptX | |
| Active Noise Cancelling | - | Yes | Bang & Olufsen Beoplay H9 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | 20 - 20000 Hz | 20 - 22000 Hz | Bang & Olufsen Beoplay H9 offer a larger frequency range than Koss UR 23i. |
| Sensitivity | 94 dB | 93 dB/mW | Koss UR 23i have higher sensitivity than Bang & Olufsen Beoplay H9. |
| Impedance | 34 Ohm | 20 Ohm | |
| Diaphragm | - | 40 mm | |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | Koss UR 23i | Bang & Olufsen Beoplay H9 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional |
| REMOTE CONTROL | Koss UR 23i | Bang & Olufsen Beoplay H9 |
|---|
| Controls | - | Volume, answer/end, play/pause, next/previous track, noise-cancellation suspend button |
|---|
| CABLE | Koss UR 23i | Bang & Olufsen Beoplay H9 |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - 1.2 m |
|---|
| BATTERY AND CHARGING | Koss UR 23i | Bang & Olufsen Beoplay H9 |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 770 mAh | |
| Battery Life | - | 21 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 14 hours Continuous playback (noise cancelling OFF): up to 16 hours Continuous playback (noise cancelling ON / cable connection): up to 21 hours |
|
| Charging Time | - | 2.5 hour(s) |
| CONNECTIONS | Koss UR 23i | Bang & Olufsen Beoplay H9 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Koss UR 23i | Bang & Olufsen Beoplay H9 |
|---|
| Included Accessories | - | Carrying pouch, airplane adapter, micro-USB charging cable (30cm) | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 2 years |
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