Detailed comparison and review of Poly Blackwire 8225-M and Poly EncorePro 520V. 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 | Poly Blackwire 8225-M | Poly EncorePro 520V |
|---|
| Product Type | Headset - wired - USB-A | Headset - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | - | EncorePro 500 series | |
| Height | - | 6.7 cm | |
| Width | - | 11.1 cm | |
| Depth | - | 14.9 cm | |
| Weight | 186 g | 74 g | Poly EncorePro 520V are lighter than Poly Blackwire 8225-M headphones. |
| Colour | - | Black | |
| Earpad Material | - | Artificial leather |
| SOUND QUALITY | Poly Blackwire 8225-M | Poly EncorePro 520V |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Hybrid ANC | SoundGuard DIGITAL | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 84 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 32 mm | 5.6 mm | Poly Blackwire 8225-M have a thicker diaphragm than Poly EncorePro 520V. |
| Signal-To-Noise Ratio | - | 50 dB | |
| Features | SoundGuard DIGITAL Technology | - |
| MICROPHONE | Poly Blackwire 8225-M | Poly EncorePro 520V |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Omni-directional | |
| Noise Cancelling | Yes | Yes | The microphones on both headphones can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | 20 - 16000 Hz | Poly EncorePro 520V offer a larger microphone frequency range than Poly Blackwire 8225-M. |
| Sensitivity | -35 dBV/Pascal | 40 dB | |
| Sensitivity Margin | - | +/- 3dB |
| REMOTE CONTROL | Poly Blackwire 8225-M | Poly EncorePro 520V |
|---|
| Controls | Mute, volume, answer/end, Microsoft Teams button | - |
|---|
| CABLE | Poly Blackwire 8225-M | Poly EncorePro 520V |
|---|
| Cable Type | Headset cable - 2.2 m | - | |
|---|---|---|---|
| Cable Length | 2.2 m | 78.5 cm |
| FEATURES | Poly Blackwire 8225-M | Poly EncorePro 520V |
|---|
| Features | - | Boom mic length 135mm, 290° rotatable microphone |
|---|
| CONNECTIONS | Poly Blackwire 8225-M | Poly EncorePro 520V |
|---|
| Connector Type | Headset (4 PIN USB Type A) | Headset (mini-phone 3.5mm) |
|---|
| OTHERS | Poly Blackwire 8225-M | Poly EncorePro 520V |
|---|
| Software Certification | - | Certified for Skype for Business, UC certified | |
|---|---|---|---|
| Supported Host Device OS | - | macOS, Windows | |
| Service & Support | - | Limited warranty - 2 years |
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