In depth comparison and review of EPOS I SENNHEISER GSP 670 and Poly Blackwire 8225. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | EPOS I SENNHEISER GSP 670 | Poly Blackwire 8225 |
|---|
| Product Type | Headset - 7.1 channel - Bluetooth - wireless | Headset - wired - USB-C | |
|---|---|---|---|
| Series | Gaming | - | |
| Height | 18 cm | - | |
| Width | 19 cm | - | |
| Depth | 8 cm | - | |
| Weight | 398 g | 186 g | Poly Blackwire 8225 are lighter than EPOS I SENNHEISER GSP 670 headphones. |
| Colour | Black | - | |
| Earpad Material | Leatherette | - | |
| Recommended Use | Game console, computer | - | |
| Gaming | Yes | - | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | EPOS I SENNHEISER GSP 670 | Poly Blackwire 8225 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | Yes | Yes | |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 5.0 | - | |
| Bluetooth Audio Codec | SBC | - | |
| Active Noise Cancelling | - | Yes | Poly Blackwire 8225 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 10 - 23000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER GSP 670 offer a larger frequency range than Poly Blackwire 8225. |
| Sensitivity | - | 84 dB | |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | 112 dB | - | |
| Diaphragm | - | 32 mm | |
| Features | - | SoundGuard DIGITAL Technology |
| MICROPHONE | EPOS I SENNHEISER GSP 670 | Poly Blackwire 8225 |
|---|
| Form Factor | Headset microphone | - | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | Bi-directional | - | |
| Noise Cancelling | Yes | Yes | The microphones on both headphones can cancel out ambient noise. |
| Frequency Response | 10 - 7300 Hz | 100 - 10000 Hz | Poly Blackwire 8225 offer a larger microphone frequency range than EPOS I SENNHEISER GSP 670. |
| Sensitivity | -47 dBV/Pascal | -35 dBV/Pascal | |
| Microphone Features | Mute function | - |
| REMOTE CONTROL | EPOS I SENNHEISER GSP 670 | Poly Blackwire 8225 |
|---|
| Controls | Volume | Mute, volume, answer/end |
|---|
| CABLE | EPOS I SENNHEISER GSP 670 | Poly Blackwire 8225 |
|---|
| Cable Type | USB charge cable - detachable - 1.5 m | Headset cable - 2.2 m | |
|---|---|---|---|
| Cable Length | - | 2.2 m |
| BATTERY AND CHARGING | EPOS I SENNHEISER GSP 670 | Poly Blackwire 8225 |
|---|
| Battery Type | Headset battery rechargeable | - | |
|---|---|---|---|
| Battery Life | 20 hour(s) | - |
| CONNECTIONS | EPOS I SENNHEISER GSP 670 | Poly Blackwire 8225 |
|---|
| Connector Type | - | Headset (USB Type-C) |
|---|
| OTHERS | EPOS I SENNHEISER GSP 670 | Poly Blackwire 8225 |
|---|
| Included Accessories | Bluetooth dongle | - | |
|---|---|---|---|
| Compatibility | Mac, Windows | - | |
| Software Certification | - | Zoom Certified | |
| Service & Support | Limited warranty - 2 years | - |
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