In depth comparison and review of Bowers & Wilkins P9 Signature and Sennheiser HD 4.50 BTNC Wireless. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Bowers & Wilkins P9 Signature | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | 413 g | 238 g | Sennheiser HD 4.50 BTNC Wireless are lighter than Bowers & Wilkins P9 Signature headphones. |
| Colour | Brown | - | |
| Earpad Material | Leather, memory foam | - | |
| Headband Material | Aluminium, memory foam | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Bowers & Wilkins P9 Signature | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.0 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | - | Yes | Sennheiser HD 4.50 BTNC Wireless are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | NoiseGard active noise compensation | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 2 - 30000 Hz | 18 - 22000 Hz | Bowers & Wilkins P9 Signature offer a larger frequency range than Sennheiser HD 4.50 BTNC Wireless. |
| Max Input Power | 50 mW | - | |
| Total Harmonic Distortion (THD) | 0.2% | <0.5% | Bowers & Wilkins P9 Signature have lower total harmonic distortion than Bowers & Wilkins P9 Signature. |
| Sensitivity | 111 dB | 113 dB | Sennheiser HD 4.50 BTNC Wireless have higher sensitivity than Bowers & Wilkins P9 Signature. |
| Impedance | 22 Ohm | 18 Ohm | |
| Diaphragm | 40 mm | - | |
| Magnet Material | - | Neodymium | |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | Bowers & Wilkins P9 Signature | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | Bowers & Wilkins P9 Signature | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Controls | - | Power on/off, volume control, answer/end, hold, play/pause, next/previous track, reject call, redial |
|---|
| CABLE | Bowers & Wilkins P9 Signature | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Cable Type | Headphones cable - detachable - 1.2 m Headphones cable - detachable - 5 m |
Headphones cable - detachable - L shaped - 1.4 m Micro-USB charge cable - detachable |
|
|---|---|---|---|
| Cable Length | - | 1.4 m | |
| Detachable Cable | Yes | Yes | |
| Plated Connector | - | Gold |
| BATTERY AND CHARGING | Bowers & Wilkins P9 Signature | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 600 mAh | |
| Battery Life | - | 25 hour(s) | |
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Bowers & Wilkins P9 Signature | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Bowers & Wilkins P9 Signature | Sennheiser HD 4.50 BTNC Wireless |
|---|
| Included Accessories | Carrying case, 3.5 mm to 6.3 mm adapter | Carrying case, micro-USB charging cable | |
|---|---|---|---|
| Service & Support | Limited warranty - parts and labour - 2 years | - |
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