In depth comparison and review of Bowers & Wilkins P9 Signature and Bowers & Wilkins PX. 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 | Bowers & Wilkins PX |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - USB, 3.5 mm jack | |
|---|---|---|---|
| Weight | 413 g | 335 g | Bowers & Wilkins PX are lighter than Bowers & Wilkins P9 Signature headphones. |
| Colour | Brown | Space grey | Soft gold | |
| Earpad Material | Leather, memory foam | Soft leather, memory foam | |
| Headband Material | Aluminium, memory foam | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Bowers & Wilkins P9 Signature | Bowers & Wilkins PX |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Generic Access Profile (GAP), Service Discovery Application Profile (SDAP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX HD | |
| Active Noise Cancelling | - | Yes | Bowers & Wilkins PX are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Adaptive Noise Cancelling | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 2 - 30000 Hz | 10 - 20000 Hz | Bowers & Wilkins P9 Signature offer a larger frequency range than Bowers & Wilkins PX. |
| Max Input Power | 50 mW | - | |
| Total Harmonic Distortion (THD) | 0.2% | <0.3% | Bowers & Wilkins P9 Signature have lower total harmonic distortion than Bowers & Wilkins P9 Signature. |
| Sensitivity | 111 dB | 111 dB | Both headphones offer the same sensitivity. |
| Impedance | 22 Ohm | 22 Ohm | |
| Diaphragm | 40 mm | 40 mm | Both headphones are designed with same thick diaphragm. |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | Bowers & Wilkins P9 Signature | Bowers & Wilkins PX |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphones Included | - | 6 |
| REMOTE CONTROL | Bowers & Wilkins P9 Signature | Bowers & Wilkins PX |
|---|
| Controls | - | Volume control, on/off, answer/end, play/pause, next/previous track |
|---|
| CABLE | Bowers & Wilkins P9 Signature | Bowers & Wilkins PX |
|---|
| Cable Type | Headphones cable - detachable - 1.2 m Headphones cable - detachable - 5 m |
Headphones cable - detachable - 1.2 m | |
|---|---|---|---|
| Detachable Cable | Yes | Yes |
| BATTERY AND CHARGING | Bowers & Wilkins P9 Signature | Bowers & Wilkins PX |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 850 mAh | |
| Battery Life | - | 50 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling OFF / cable connection): up to 50 hours Continuous playback (noise cancelling ON / cable connection): up to 33 hours Continuous playback (noise cancelling OFF): up to 29 hours Continuous playback (noise cancelling ON / Bluetooth): up to 22 hours |
| CONNECTIONS | Bowers & Wilkins P9 Signature | Bowers & Wilkins PX |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm 4-pole) USB (USB Type-C) |
|---|
| OTHERS | Bowers & Wilkins P9 Signature | Bowers & Wilkins PX |
|---|
| Included Accessories | Carrying case, 3.5 mm to 6.3 mm adapter | Protective pouch, USB charging cable (120cm) | |
|---|---|---|---|
| Service & Support | Limited warranty - parts and labour - 2 years | - |
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