In depth comparison and review of Sennheiser HD 559 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 559 | Bowers & Wilkins P9 Signature |
|---|
| Product Type | Headphones - wired | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | HD 5 | - | |
| Weight | - | 413 g | |
| Colour | Black | Brown | |
| Earpad Material | - | Leather, memory foam | |
| Headband Material | - | Aluminium, memory foam |
| SOUND QUALITY | Sennheiser HD 559 | Bowers & Wilkins P9 Signature |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Open | - | |
| Foldable | - | Yes | Bowers & Wilkins P9 Signature can be folded. |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 14 - 26000 Hz | 2 - 30000 Hz | Bowers & Wilkins P9 Signature offer a larger frequency range than Sennheiser HD 559. |
| Max Input Power | - | 50 mW | |
| Total Harmonic Distortion (THD) | 0.2% | 0.2% | Both headphones have the same total harmonic distortion. |
| Sensitivity | 108 dB/Vrms | 111 dB | Bowers & Wilkins P9 Signature have higher sensitivity than Sennheiser HD 559. |
| Impedance | 50 Ohm | 22 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Sennheiser HD 559 | Bowers & Wilkins P9 Signature |
|---|
| Type | - | On-cable |
|---|
| CABLE | Sennheiser HD 559 | Bowers & Wilkins P9 Signature |
|---|
| Cable Type | Headphones cable - 3 m | Headphones cable - detachable - 1.2 m Headphones cable - detachable - 5 m |
|
|---|---|---|---|
| Cable Length | 3 m | - | |
| Detachable Cable | Yes | Yes |
| CONNECTIONS | Sennheiser HD 559 | Bowers & Wilkins P9 Signature |
|---|
| Connector Type | Headphones (phone stereo 6.3 mm) | Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Sennheiser HD 559 | 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 |
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