In depth comparison and review of Bowers & Wilkins P9 Signature and Poly Blackwire 8225. 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 | Poly Blackwire 8225 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - USB-C | |
|---|---|---|---|
| Weight | 413 g | 186 g | Poly Blackwire 8225 are lighter than Bowers & Wilkins P9 Signature headphones. |
| Colour | Brown | - | |
| Earpad Material | Leather, memory foam | - | |
| Headband Material | Aluminium, memory foam | - |
| SOUND QUALITY | Bowers & Wilkins P9 Signature | Poly Blackwire 8225 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Foldable | Yes | - | Bowers & Wilkins P9 Signature can be folded. |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | - | Yes | Poly Blackwire 8225 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 2 - 30000 Hz | 20 - 20000 Hz | Bowers & Wilkins P9 Signature offer a larger frequency range than Poly Blackwire 8225. |
| Max Input Power | 50 mW | - | |
| Total Harmonic Distortion (THD) | 0.2% | - | |
| Sensitivity | 111 dB | 84 dB | Bowers & Wilkins P9 Signature have higher sensitivity than Poly Blackwire 8225. |
| Impedance | 22 Ohm | 32 Ohm | |
| Diaphragm | 40 mm | 32 mm | Bowers & Wilkins P9 Signature have a thicker diaphragm than Poly Blackwire 8225. |
| Features | - | SoundGuard DIGITAL Technology |
| MICROPHONE | Bowers & Wilkins P9 Signature | Poly Blackwire 8225 |
|---|
| Type | On-cable | Boom | |
|---|---|---|---|
| Noise Cancelling | - | Yes | Poly Blackwire 8225 microphone can cancel out ambient noise. |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -35 dBV/Pascal |
| REMOTE CONTROL | Bowers & Wilkins P9 Signature | Poly Blackwire 8225 |
|---|
| Controls | - | Mute, volume, answer/end |
|---|
| CABLE | Bowers & Wilkins P9 Signature | Poly Blackwire 8225 |
|---|
| Cable Type | Headphones cable - detachable - 1.2 m Headphones cable - detachable - 5 m |
Headset cable - 2.2 m | |
|---|---|---|---|
| Cable Length | - | 2.2 m | |
| Detachable Cable | Yes | - |
| CONNECTIONS | Bowers & Wilkins P9 Signature | Poly Blackwire 8225 |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | Headset (USB Type-C) |
|---|
| OTHERS | Bowers & Wilkins P9 Signature | Poly Blackwire 8225 |
|---|
| Included Accessories | Carrying case, 3.5 mm to 6.3 mm adapter | - | |
|---|---|---|---|
| Software Certification | - | Zoom Certified | |
| Service & Support | Limited warranty - parts and labour - 2 years | - |
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