Detailed comparison and review of Sennheiser HD 400S and Bang & Olufsen Beoplay H9 3rd Generation. 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 | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | |
|---|---|---|---|
| Height | - | 20 cm | |
| Width | - | 19.7 cm | |
| Depth | - | 5.2 cm | |
| Weight | 217 g | 285 g | Sennheiser HD 400S are lighter than Sennheiser HD 400S headphones. |
| Colour | Black | Chestnut | |
| Body Material | - | Stainless steel, aluminium | |
| Earpad Material | - | Leather | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | Sennheiser HD 400S can be folded. |
| Connectivity Technology | Wired | Wireless, wired | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Audio Codec | - | SBC, AAC, apt-X LL | |
| Active Noise Cancelling | - | Yes | Bang & Olufsen Beoplay H9 3rd Generation are equipped with active noice cancellation. |
| Noise Isolating | Yes | - | Sennheiser HD 400S are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | 18 - 20000 Hz | 20 - 22000 Hz | Bang & Olufsen Beoplay H9 3rd Generation offer a larger frequency range than Sennheiser HD 400S. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | - | 93 dB | |
| Impedance | 18 Ohm | 24 Ohm | |
| Max Sound Pressure | 120 dB | - | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Controls | Answer/end, play/pause, next/previous track | Volume, on/off, answer/end, play/pause, next/previous track, pair mode, voice assistant, noise-cancellation suspend button, ANC on/off |
|---|
| CABLE | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Cable Type | Headphones cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.4 m | Headphones cable - detachable - 1.2 m USB-C charge cable - detachable - 1.25 m |
|
|---|---|---|---|
| Cable Length | 1.4 m | 1.2 m | |
| Detachable Cable | Yes | Yes |
| FEATURES | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Features | - | Touch control | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | - | Yes | |
| Intelligent Assistant | - | Google Assistant |
| BATTERY AND CHARGING | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 1110 mAh | |
| Battery Life | - | 33 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 25 hours Continuous playback (noise cancelling OFF / Bluetooth): up to 32 hours Continuous playback (noise cancelling ON / cable connection): up to 33 hours |
|
| Charging Time | - | 3 hour(s) |
| CONNECTIONS | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Sennheiser HD 400S | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Included Accessories | - | Carrying pouch, airplane adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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