EPOS I SENNHEISER IMPACT SC 660 TC vs. Sennheiser MOMENTUM 4

Headphones Comparison, Reviews and Tests

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.

Headphones Specifications Comparison

EPOS I SENNHEISER IMPACT SC 660 TC vs. Sennheiser MOMENTUM 4 Comparison Chart
DESIGN AND DIMENSIONS EPOS I SENNHEISER IMPACT SC 660 TC Sennheiser MOMENTUM 4
Product Type Headset - wired - Easy Disconnect Headphones - Bluetooth - wireless, wired - 2.5 mm jack, USB-C
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
Headphones Form Factor On-ear Full size
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
Form Factor Headset microphone Built-in
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
Controls - Volume, play/pause, equaliser preset
CABLE EPOS I SENNHEISER IMPACT SC 660 TC Sennheiser MOMENTUM 4
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
Cable Length - 1.2 m
Detachable Cable - Yes
FEATURES EPOS I SENNHEISER IMPACT SC 660 TC Sennheiser MOMENTUM 4
Features - Transparent Hearing mode, auto power on/off
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
Battery Type - Headphone battery rechargeable - Lithium Ion
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
Connector Type Headset (EasyDisconnect) Headphones (sub-mini phone 2.5 mm 4-pole)
USB (24 pin USB-C)
OTHERS EPOS I SENNHEISER IMPACT SC 660 TC Sennheiser MOMENTUM 4
Included Accessories Carrying pouch, leatherette ear pads, cable clip Carrying case, airplane adapter, headphones cable (1.2 m), USB-C charging cable (1.2m)
Software Included - Sennheiser Smart Control
Compliant Standards - Bluetooth Class 1
Service & Support Limited warranty - 3 years Limited warranty - 2 years
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