Detailed comparison and review of Sennheiser HD 559 and Poly Blackwire 325. 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 325 |
|---|
| Product Type | Headphones - wired | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | HD 5 | 300 Series | |
| Colour | Black | - | |
| Headband Material | - | Metal |
| SOUND QUALITY | Sennheiser HD 559 | Poly Blackwire 325 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Open | - | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 14 - 26000 Hz | 20 - 20000 Hz | Sennheiser HD 559 offer a larger frequency range than Poly Blackwire 325. |
| Total Harmonic Distortion (THD) | 0.2% | - | |
| Sensitivity | 108 dB/Vrms | - | |
| Impedance | 50 Ohm | - | |
| Features | - | SoundGuard Technology | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Sennheiser HD 559 | Poly Blackwire 325 |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Frequency Response | - | 100 - 10000 Hz |
| REMOTE CONTROL | Sennheiser HD 559 | Poly Blackwire 325 |
|---|
| Controls | - | Mute, volume, answer/end |
|---|
| CABLE | Sennheiser HD 559 | Poly Blackwire 325 |
|---|
| Cable Type | Headphones cable - 3 m | Headset cable - 2.13 m | |
|---|---|---|---|
| Cable Length | 3 m | 2.13 m | |
| Detachable Cable | Yes | - |
| FEATURES | Sennheiser HD 559 | Poly Blackwire 325 |
|---|
| Additional Functions | - | DSP |
|---|
| CONNECTIONS | Sennheiser HD 559 | Poly Blackwire 325 |
|---|
| Connector Type | Headphones (phone stereo 6.3 mm) | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
|---|
| OTHERS | Sennheiser HD 559 | Poly Blackwire 325 |
|---|
| Service & Support | - | Limited warranty - 2 years |
|---|
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