Side by side comparison and review of Sennheiser HD 559 and Bang & Olufsen Beoplay H9i. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Product Type | Headphones - wired | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | HD 5 | - | |
| Height | - | 20 cm | |
| Width | - | 19.5 cm | |
| Depth | - | 5.2 cm | |
| Weight | - | 285 g | |
| Colour | Black | Natural | Black | Pine | |
| Body Material | - | Fabric, rubber, anodised aluminium, polymer | |
| Earpad Material | - | Leather, memory foam | |
| Headband Material | - | Leather | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Open | Closed | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Audio Codec | - | AAC | |
| Active Noise Cancelling | - | Yes | Bang & Olufsen Beoplay H9i are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 14 - 26000 Hz | 20 - 22000 Hz | Sennheiser HD 559 offer a larger frequency range than Bang & Olufsen Beoplay H9i. |
| Total Harmonic Distortion (THD) | 0.2% | - | |
| Sensitivity | 108 dB/Vrms | 95 dB/mW | Sennheiser HD 559 have higher sensitivity than Bang & Olufsen Beoplay H9i. |
| Impedance | 50 Ohm | 24 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Microphones Included | - | 2 |
| REMOTE CONTROL | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Controls | - | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode, noise-cancellation suspend button, audio transparency |
|---|
| CABLE | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Cable Type | Headphones cable - 3 m | Headphones cable - detachable - 1.2 m USB to USB-C cable - 1.25 m |
|
|---|---|---|---|
| Cable Length | 3 m | 1.2 m | |
| Detachable Cable | Yes | - |
| FEATURES | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Sensors | - | Proximity sensor |
|---|
| BATTERY AND CHARGING | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 770 mAh | |
| Battery Life | - | 24 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 18 hours Continuous playback (noise cancelling OFF): up to 23 hours Continuous playback (noise cancelling ON / cable connection): up to 24 hours |
|
| Charging Time | - | 2.5 hour(s) |
| CONNECTIONS | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Connector Type | Headphones (phone stereo 6.3 mm) | Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | Sennheiser HD 559 | Bang & Olufsen Beoplay H9i |
|---|
| Included Accessories | - | Carrying pouch, airplane adapter | |
|---|---|---|---|
| Service & Support | - | Limited warranty - parts and labour - 2 years |
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