Detailed comparison and review of Sennheiser HD 559 and Poly Blackwire C725-UC. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Sennheiser HD 559 | Poly Blackwire C725-UC |
|---|
| Product Type | Headphones - wired | Headset - wired - USB | |
|---|---|---|---|
| Series | HD 5 | 700 Series | |
| Colour | Black | - | |
| Recommended Use | - | Computer |
| SOUND QUALITY | Sennheiser HD 559 | Poly Blackwire C725-UC |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Open | - | |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | - | Yes | Poly Blackwire C725-UC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 14 - 26000 Hz | 20 - 20000 Hz | Sennheiser HD 559 offer a larger frequency range than Poly Blackwire C725-UC. |
| Total Harmonic Distortion (THD) | 0.2% | - | |
| Sensitivity | 108 dB/Vrms | - | |
| Impedance | 50 Ohm | - | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sennheiser HD 559 | Poly Blackwire C725-UC |
|---|
| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | - | Boom | |
| Frequency Response | - | 100 - 8000 Hz |
| REMOTE CONTROL | Sennheiser HD 559 | Poly Blackwire C725-UC |
|---|
| Controls | - | Mute, volume, answer/end |
|---|
| CABLE | Sennheiser HD 559 | Poly Blackwire C725-UC |
|---|
| Cable Type | Headphones cable - 3 m | USB cable - 2.04 m | |
|---|---|---|---|
| Cable Length | 3 m | 2.04 m | |
| Detachable Cable | Yes | - |
| CONNECTIONS | Sennheiser HD 559 | Poly Blackwire C725-UC |
|---|
| Connector Type | Headphones (phone stereo 6.3 mm) | USB (4 PIN USB Type A) |
|---|
| OTHERS | Sennheiser HD 559 | Poly Blackwire C725-UC |
|---|
| Included Accessories | - | Carrying case | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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