Detailed comparison and review of Poly Blackwire 325-M and beyerdynamic DT 109. 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-M | beyerdynamic DT 109 |
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| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - wired | |
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| Series | 300 Series | - | |
| Weight | - | 390 g | |
| Colour | - | Black | |
| Headband Material | Metal | - |
| SOUND QUALITY | Poly Blackwire 325-M | beyerdynamic DT 109 |
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| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 30 - 20000 Hz | Poly Blackwire 325-M offer a larger frequency range than beyerdynamic DT 109. |
| Max Input Power | - | 100 mW | |
| Impedance | - | 50 Ohm | |
| Max Sound Pressure | - | 94 dB | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325-M | beyerdynamic DT 109 |
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| Type | Boom | Boom | |
|---|---|---|---|
| Microphone Technology | - | Dynamic | |
| Microphone Operation Mode | - | Hypercardioid | |
| Frequency Response | 100 - 10000 Hz | 40 - 12000 Hz | beyerdynamic DT 109 offer a larger microphone frequency range than Poly Blackwire 325-M. |
| Impedance | - | 200 Ohm |
| REMOTE CONTROL | Poly Blackwire 325-M | beyerdynamic DT 109 |
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| Controls | Mute, volume, answer/end | - |
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| CABLE | Poly Blackwire 325-M | beyerdynamic DT 109 |
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| Cable Type | Headset cable - 2.13 m | - | |
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| Cable Length | 2.13 m | - |
| FEATURES | Poly Blackwire 325-M | beyerdynamic DT 109 |
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| Additional Functions | DSP | - |
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| CONNECTIONS | Poly Blackwire 325-M | beyerdynamic DT 109 |
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| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
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| OTHERS | Poly Blackwire 325-M | beyerdynamic DT 109 |
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| Service & Support | Limited warranty - 2 years | - |
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