Side by side comparison and review of Sennheiser HD 400S and Bowers & Wilkins PX7 S2. 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 400S | Bowers & Wilkins PX7 S2 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless, wired - USB-C | |
|---|---|---|---|
| Weight | 217 g | 307 g | Sennheiser HD 400S are lighter than Sennheiser HD 400S headphones. |
| Dimensions & Weight Details | - | Case: 18.9 cm x 6.3 cm x 23.3 cm | |
| Colour | Black | Black | |
| Earpad Material | - | Memory foam | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Sennheiser HD 400S | Bowers & Wilkins PX7 S2 |
|---|
| 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 5.2 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Generic Attribute Profile (GATT) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX HD, aptX Adaptive | |
| Active Noise Cancelling | - | Yes | Bowers & Wilkins PX7 S2 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid Active Noise Cancelling | |
| Noise Isolating | Yes | - | Sennheiser HD 400S are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 18 - 20000 Hz | - | |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Impedance | 18 Ohm | - | |
| Max Sound Pressure | 120 dB | - | |
| Diaphragm | - | Bio-cellulose - 40 mm | |
| Features | - | Ambient Pass-Through |
| MICROPHONE | Sennheiser HD 400S | Bowers & Wilkins PX7 S2 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Noise Cancelling | - | Yes | Bowers & Wilkins PX7 S2 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | - | 6 |
| REMOTE CONTROL | Sennheiser HD 400S | Bowers & Wilkins PX7 S2 |
|---|
| Controls | Answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Sennheiser HD 400S | Bowers & Wilkins PX7 S2 |
|---|
| Cable Type | Headphones cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.4 m | USB-C to mini-phone 3.5 mm cable - detachable - 1.2 m USB-C to USB-C cable - detachable - 1.2 m |
|
|---|---|---|---|
| Cable Length | 1.4 m | 1.2 m | |
| Detachable Cable | Yes | Yes |
| FEATURES | Sennheiser HD 400S | Bowers & Wilkins PX7 S2 |
|---|
| Features | - | Wear detection |
|---|
| BATTERY AND CHARGING | Sennheiser HD 400S | Bowers & Wilkins PX7 S2 |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 30 hour(s) | |
| Battery Life Details | - | Continuous playback: up to 30 hours Continuous playback (with 15 min charge): up to 7 hours |
|
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Sennheiser HD 400S | Bowers & Wilkins PX7 S2 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headphones (24 pin USB-C) |
|---|
| OTHERS | Sennheiser HD 400S | Bowers & Wilkins PX7 S2 |
|---|
| Included Accessories | - | Carrying case, 3.5 mm to USB-C cable, USB-C to USB-C cable | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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