Detailed comparison and review of beyerdynamic DT 990 PRO and Poly Blackwire 3225 (3300 Series). 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 | beyerdynamic DT 990 PRO | Poly Blackwire 3225 (3300 Series) |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | - | 3300 Series | |
| Height | - | 17.8 cm | |
| Width | - | 15.5 cm | |
| Depth | - | 3.2 cm | |
| Weight | 250 g | 64 g | Poly Blackwire 3225 (3300 Series) are lighter than beyerdynamic DT 990 PRO headphones. |
| Colour | Black | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | - | Computer |
| SOUND QUALITY | beyerdynamic DT 990 PRO | Poly Blackwire 3225 (3300 Series) |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Open | - | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | - | Yes | Poly Blackwire 3225 (3300 Series) are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 5 - 35000 Hz | - | |
| Max Input Power | 100 mW | - | |
| Total Harmonic Distortion (THD) | 0.2% | - | |
| Sensitivity | 96 dB | 90 dB | beyerdynamic DT 990 PRO have higher sensitivity than Poly Blackwire 3225 (3300 Series). |
| Impedance | 250 Ohm | 32 Ohm | |
| Diaphragm | - | 28 mm | |
| Features | - | Digital signal processing, Dynamic EQ optimised | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | beyerdynamic DT 990 PRO | Poly Blackwire 3225 (3300 Series) |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | beyerdynamic DT 990 PRO | Poly Blackwire 3225 (3300 Series) |
|---|
| Controls | - | Mute, volume, answer/end, hold, redial |
|---|
| CABLE | beyerdynamic DT 990 PRO | Poly Blackwire 3225 (3300 Series) |
|---|
| Cable Type | Headphones cable - 3 m | USB-A cable | |
|---|---|---|---|
| Cable Length | 3 m | - | |
| Plated Connector | Gold | - |
| CONNECTIONS | beyerdynamic DT 990 PRO | Poly Blackwire 3225 (3300 Series) |
|---|
| Connector Type | Headphones (mini-phone 3.5mm) | USB (4 PIN USB Type A) Headset (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | beyerdynamic DT 990 PRO | Poly Blackwire 3225 (3300 Series) |
|---|
| Included Accessories | 6.3 mm (1/4") stereo adapter | - | |
|---|---|---|---|
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Skype Certified, Avaya Certified, Cisco Jabber Certified | |
| Supported Host Device OS | - | Windows 10, macOS, Windows 11 |
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