In depth comparison and review of EPOS I SENNHEISER GSP 301 and EPOS I SENNHEISER ADAPT 135T USB-C II. 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 301 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Product Type | Headset - wired - 3.5 mm jack | Headset - wired - 3.5 mm jack, USB-C | |
|---|---|---|---|
| Series | - | ADAPT 100 Series | |
| Height | 17 cm | - | |
| Width | 18.5 cm | - | |
| Depth | 7.5 cm | - | |
| Weight | 290 g | 145.3 g | EPOS I SENNHEISER ADAPT 135T USB-C II are lighter than EPOS I SENNHEISER GSP 301 headphones. |
| Colour | White | Black | |
| Earpad Material | Memory foam | Leatherette | |
| Recommended Use | Game console, computer | Portable electronics, computer |
| SOUND QUALITY | EPOS I SENNHEISER GSP 301 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | Yes | - | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | Deep Bass | EPOS Voice | |
| Frequency Response | 15 - 26000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER GSP 301 offer a larger frequency range than EPOS I SENNHEISER ADAPT 135T USB-C II. |
| Sensitivity | 113 dB | - | |
| Impedance | 19 Ohm | - | |
| Max Sound Pressure | 113 dB | 115 dB | |
| Magnet Material | - | Neodymium | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | EPOS I SENNHEISER GSP 301 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Form Factor | Headset microphone | - | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | - | Mono | |
| Noise Cancelling | Yes | Yes | The microphones on both headphones can cancel out ambient noise. |
| Frequency Response | 10 - 15000 Hz | 100 - 8000 Hz | EPOS I SENNHEISER GSP 301 offer a larger microphone frequency range than EPOS I SENNHEISER ADAPT 135T USB-C II. |
| Sensitivity | -41 dBV/Pascal | - | |
| Microphone Features | Mute function | - |
| REMOTE CONTROL | EPOS I SENNHEISER GSP 301 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Controls | Volume | Volume, answer/end |
|---|
| CABLE | EPOS I SENNHEISER GSP 301 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Cable Type | Headset cable - 2 m | Headset cable | |
|---|---|---|---|
| Cable Length | 2 m | - |
| FEATURES | EPOS I SENNHEISER GSP 301 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Features | - | EPOS ActiveGard |
|---|
| CONNECTIONS | EPOS I SENNHEISER GSP 301 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) Microphone (mini-phone 3.5mm) |
Headset (USB Type-C) Headset (mini-phone 3.5mm) |
|---|
| OTHERS | EPOS I SENNHEISER GSP 301 | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Included Accessories | 2 x 3.5 mm to 3.5 mm adapter | - | |
|---|---|---|---|
| Compatibility | Mac, Windows | - | |
| Software Certification | - | Certified for Microsoft Teams, Optimised for UC | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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