In depth comparison and review of Bowers & Wilkins P9 Signature and Sennheiser HD 250BT. 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 250BT |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 413 g | 125 g | Sennheiser HD 250BT 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 250BT |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | - | Bowers & Wilkins P9 Signature can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, apt-X LL | |
| Noise Isolating | - | Yes | Sennheiser HD 250BT are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 2 - 30000 Hz | 20 - 22000 Hz | Bowers & Wilkins P9 Signature offer a larger frequency range than Sennheiser HD 250BT. |
| 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 | 110 dB | Bowers & Wilkins P9 Signature have higher sensitivity than Sennheiser HD 250BT. |
| Impedance | 22 Ohm | - | |
| Diaphragm | 40 mm | 32 mm | Bowers & Wilkins P9 Signature have a thicker diaphragm than Sennheiser HD 250BT. |
| Features | - | Audio prompts |
| MICROPHONE | Bowers & Wilkins P9 Signature | Sennheiser HD 250BT |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz |
| REMOTE CONTROL | Bowers & Wilkins P9 Signature | Sennheiser HD 250BT |
|---|
| Controls | - | Volume, on/off, answer/end, hold, play/pause, next/previous track, reject call |
|---|
| CABLE | Bowers & Wilkins P9 Signature | Sennheiser HD 250BT |
|---|
| Cable Type | Headphones cable - detachable - 1.2 m Headphones cable - detachable - 5 m |
USB-C charge cable - detachable | |
|---|---|---|---|
| Detachable Cable | Yes | - |
| BATTERY AND CHARGING | Bowers & Wilkins P9 Signature | Sennheiser HD 250BT |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 190 mAh | |
| Battery Life | - | 25 hour(s) | |
| Charging Time | - | 3 hour(s) |
| CONNECTIONS | Bowers & Wilkins P9 Signature | Sennheiser HD 250BT |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | - |
|---|
| OTHERS | Bowers & Wilkins P9 Signature | Sennheiser HD 250BT |
|---|
| Included Accessories | Carrying case, 3.5 mm to 6.3 mm adapter | USB-C charging cable | |
|---|---|---|---|
| Compatibility | - | iPhone, Android phone | |
| Compliant Standards | - | Bluetooth Class 1 | |
| Service & Support | Limited warranty - parts and labour - 2 years | - |
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