In depth comparison and review of EPOS I SENNHEISER IMPACT SC 660 TC 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 IMPACT SC 660 TC | EPOS I SENNHEISER ADAPT 135T USB-C II |
|---|
| Product Type | Headset - wired - Easy Disconnect | Headset - wired - 3.5 mm jack, USB-C | |
|---|---|---|---|
| Series | - | ADAPT 100 Series | |
| Weight | 113 g | 145.3 g | EPOS I SENNHEISER IMPACT SC 660 TC are lighter than EPOS I SENNHEISER IMPACT SC 660 TC headphones. |
| Colour | Black with silver | Black | |
| Earpad Material | Leatherette | Leatherette | |
| Recommended Use | - | Portable electronics, computer |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT SC 660 TC | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | EPOS Voice | |
| Frequency Response | 50 - 18000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER ADAPT 135T USB-C II offer a larger frequency range than EPOS I SENNHEISER IMPACT SC 660 TC. |
| Sensitivity | 103 dB | - | |
| Impedance | 200 Ohm | - | |
| Max Sound Pressure | - | 115 dB | |
| Magnet Material | Neodymium | Neodymium | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | EPOS I SENNHEISER IMPACT SC 660 TC | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Form Factor | Headset microphone | - | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | - | Mono | |
| Noise Cancelling | - | Yes | EPOS I SENNHEISER ADAPT 135T USB-C II microphone can cancel out ambient noise. |
| Frequency Response | 150 - 6800 Hz | 100 - 8000 Hz | EPOS I SENNHEISER ADAPT 135T USB-C II offer a larger microphone frequency range than EPOS I SENNHEISER IMPACT SC 660 TC. |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT SC 660 TC | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Controls | - | Volume, answer/end |
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| CABLE | EPOS I SENNHEISER IMPACT SC 660 TC | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Cable Type | Headset cable - 1 m | Headset cable |
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| FEATURES | EPOS I SENNHEISER IMPACT SC 660 TC | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Features | - | EPOS ActiveGard |
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| CONNECTIONS | EPOS I SENNHEISER IMPACT SC 660 TC | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Connector Type | Headset (EasyDisconnect) | Headset (USB Type-C) Headset (mini-phone 3.5mm) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT SC 660 TC | EPOS I SENNHEISER ADAPT 135T USB-C II |
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| Included Accessories | Carrying pouch, leatherette ear pads, cable clip | - | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams, Optimised for UC | |
| Service & Support | Limited warranty - 3 years | Limited warranty - 2 years |
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