Detailed comparison and review of Poly Blackwire 325 and Poly EncorePro 320, QD. 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 325 | Poly EncorePro 320, QD |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - wired - Quick Disconnect | |
|---|---|---|---|
| Series | 300 Series | 300 Series | |
| Headband Material | Metal | - | |
| Recommended Use | - | Computer |
| SOUND QUALITY | Poly Blackwire 325 | Poly EncorePro 320, QD |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 50 - 8000 Hz | Poly Blackwire 325 offer a larger frequency range than Poly EncorePro 320, QD. |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | - | 118 dB | |
| Diaphragm | - | 28 mm | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Poly Blackwire 325 | Poly EncorePro 320, QD |
|---|
| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Uni-directional | |
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire 325 | Poly EncorePro 320, QD |
|---|
| Controls | Mute, volume, answer/end | Mute, volume |
|---|
| CABLE | Poly Blackwire 325 | Poly EncorePro 320, QD |
|---|
| Cable Type | Headset cable - 2.13 m | Headset cable | |
|---|---|---|---|
| Cable Length | 2.13 m | - |
| FEATURES | Poly Blackwire 325 | Poly EncorePro 320, QD |
|---|
| Additional Functions | DSP | - |
|---|
| CONNECTIONS | Poly Blackwire 325 | Poly EncorePro 320, QD |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
Headset (Quick Disconnect) |
|---|
| OTHERS | Poly Blackwire 325 | Poly EncorePro 320, QD |
|---|
| Service & Support | Limited warranty - 2 years | - |
|---|
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