Detailed comparison and review of EPOS I SENNHEISER IMPACT SC 660 TC and Sennheiser MOMENTUM 4. 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 | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Product Type | Headset - wired - Easy Disconnect | Headphones - Bluetooth - wireless, wired - 2.5 mm jack, USB-C | |
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Height | - | 19.5 cm | |
Width | - | 18 cm | |
Depth | - | 4.63 cm | |
Weight | 113 g | 293 g | EPOS I SENNHEISER IMPACT SC 660 TC are lighter than EPOS I SENNHEISER IMPACT SC 660 TC headphones. |
Colour | Black with silver | Black | White | |
Earpad Material | Leatherette | Synthetic leather | |
Recommended Use | - | Portable electronics | |
High-Resolution Audio | - | Yes |
SOUND QUALITY | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Headphones Form Factor | On-ear | Full size | |
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Headphones Technology | - | Dynamic | |
Ear Cups Type | - | Closed | |
Adjustable Headband | - | Yes | |
Foldable | - | Yes | Sennheiser MOMENTUM 4 can be folded. |
Connectivity Technology | Wired | Wireless, wired | |
Wireless Technology | - | Bluetooth | |
Bluetooth Version | - | Bluetooth 5.2 | |
Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
Bluetooth Audio Codec | - | SBC, AAC, aptX, aptX Adaptive | |
Active Noise Cancelling | - | Yes | Sennheiser MOMENTUM 4 are equipped with active noice cancellation. |
Active Noise Cancelling Technology | - | Adaptive Hybrid ANC | |
Sound Output Mode | Stereo | Stereo | |
Sound Effects | - | Signature Sound | |
Frequency Response | 50 - 18000 Hz | 6 - 22000 Hz | Sennheiser MOMENTUM 4 offer a larger frequency range than EPOS I SENNHEISER IMPACT SC 660 TC. |
Total Harmonic Distortion (THD) | - | 0.3% | |
Sensitivity | 103 dB | 106 dB | Sennheiser MOMENTUM 4 have higher sensitivity than EPOS I SENNHEISER IMPACT SC 660 TC. |
Impedance | 200 Ohm | 60 Ohm | |
Diaphragm | - | 42 mm | |
Magnet Material | Neodymium | - | |
Features | - | Smart Pause, Crystal-clear Calls |
MICROPHONE | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Form Factor | Headset microphone | Built-in | |
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Type | Boom | - | |
Microphone Operation Mode | - | MEMS-directional | |
Noise Cancelling | - | Yes | Sennheiser MOMENTUM 4 microphone can cancel out ambient noise. |
Frequency Response | 150 - 6800 Hz | 50 - 10000 Hz | Sennheiser MOMENTUM 4 offer a larger microphone frequency range than EPOS I SENNHEISER IMPACT SC 660 TC. |
Microphones Included | - | 4 |
REMOTE CONTROL | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Controls | - | Volume, play/pause, equaliser preset |
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CABLE | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Cable Type | Headset cable - 1 m | Headphones cable - detachable - L shaped / sub-mini phone 2.5 mm 4-pole - 1.2 m USB-C to USB-A cable - detachable - 1.2 m |
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Cable Length | - | 1.2 m | |
Detachable Cable | - | Yes |
FEATURES | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Features | - | Transparent Hearing mode, auto power on/off | |
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Sensors | - | Touch sensor | |
Additional Functions | - | Smart Touch Control, USB-C charging port |
BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
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Battery Capacity | - | 700 mAh | |
Battery Life | - | 60 hour(s) | |
Charging Time | - | 2 hour(s) | |
Included Qty | - | 1 |
CONNECTIONS | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Connector Type | Headset (EasyDisconnect) | Headphones (sub-mini phone 2.5 mm 4-pole) USB (24 pin USB-C) |
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OTHERS | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser MOMENTUM 4 |
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Included Accessories | Carrying pouch, leatherette ear pads, cable clip | Carrying case, airplane adapter, headphones cable (1.2 m), USB-C charging cable (1.2m) | |
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Software Included | - | Sennheiser Smart Control | |
Compliant Standards | - | Bluetooth Class 1 | |
Service & Support | Limited warranty - 3 years | Limited warranty - 2 years |