In depth comparison and review of Sennheiser HD 4.20s and Bowers & Wilkins P9 Signature. 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 | Sennheiser HD 4.20s | Bowers & Wilkins P9 Signature |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | - | 413 g | |
| Colour | Black | Brown | |
| Earpad Material | - | Leather, memory foam | |
| Headband Material | - | Aluminium, memory foam |
| SOUND QUALITY | Sennheiser HD 4.20s | Bowers & Wilkins P9 Signature |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Foldable | - | Yes | Bowers & Wilkins P9 Signature can be folded. |
| Connectivity Technology | Wired | Wired | |
| Noise Isolating | Yes | - | Sennheiser HD 4.20s are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 2 - 30000 Hz | |
| Max Input Power | - | 50 mW | |
| Total Harmonic Distortion (THD) | - | 0.2% | |
| Sensitivity | - | 111 dB | |
| Impedance | - | 22 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Sennheiser HD 4.20s | Bowers & Wilkins P9 Signature |
|---|
| Type | On-cable | On-cable | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Sensitivity | -44 dBV/Pascal | - |
| REMOTE CONTROL | Sennheiser HD 4.20s | Bowers & Wilkins P9 Signature |
|---|
| Controls | 1-button remote | - |
|---|
| CABLE | Sennheiser HD 4.20s | Bowers & Wilkins P9 Signature |
|---|
| Cable Type | - | Headphones cable - detachable - 1.2 m Headphones cable - detachable - 5 m |
|
|---|---|---|---|
| Cable Length | 1.4 m | - | |
| Detachable Cable | - | Yes | |
| Plated Connector | Gold | - |
| CONNECTIONS | Sennheiser HD 4.20s | Bowers & Wilkins P9 Signature |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Sennheiser HD 4.20s | Bowers & Wilkins P9 Signature |
|---|
| Included Accessories | - | Carrying case, 3.5 mm to 6.3 mm adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - parts and labour - 2 years | Limited warranty - parts and labour - 2 years |
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