Sennheiser PXC 550 Wireless vs. EPOS I SENNHEISER IMPACT MB 660 UC

Headphones Comparison, Reviews and Tests

In depth comparison and review of Sennheiser PXC 550 Wireless and EPOS I SENNHEISER IMPACT MB 660 UC. 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.

Headphones Specifications Comparison

Sennheiser PXC 550 Wireless vs. EPOS I SENNHEISER IMPACT MB 660 UC Comparison Chart
DESIGN AND DIMENSIONS Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Product Type Headphones - Bluetooth - wireless - NFC Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack
Series PXC -
Weight 227 g 227 g Both headphones are equally heavy.
Recommended Use Home audio, portable electronics Portable electronics, computer
Bluetooth Range (Operating Distance) - 25 m
SOUND QUALITY Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Headphones Form Factor Full size Full size
Headphones Technology Dynamic Dynamic
Ear Cups Type Closed Closed
Foldable Yes Yes Both headphones can be folded.
Connectivity Technology Wireless Wireless
Wireless Technology Bluetooth Bluetooth
Bluetooth Version Bluetooth 4.2 Bluetooth 4.2 Both headphones have the same Bluetooth version.
Bluetooth Profiles Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Device ID Profile (DIP) Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP)
Bluetooth Audio Codec - SBC, aptX
Active Noise Cancelling Yes Yes Both headphones are equipped with active noice cancellation.
Active Noise Cancelling Technology NoiseGard active noise compensation NoiseGard active noise compensation
Sound Output Mode Stereo Stereo
Frequency Response 17 - 23000 Hz 17 - 23000 Hz Both headphones offer the same frequency response.
Total Harmonic Distortion (THD) 0.5% <0.5% Both headphones have the same total harmonic distortion.
Sensitivity 110 dB 118 dB EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than Sennheiser PXC 550 Wireless.
Impedance 490 Ohm 46 Ohm
MICROPHONE Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Form Factor Built-in Built-in
Frequency Response - 150 - 6800 Hz
Microphones Included 3 3 Both headphones have a built-in microphone.
REMOTE CONTROL Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Controls Volume -
CABLE Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Cable Type Headphones cable - detachable
USB cable - detachable
Audio cable
Micro-USB cable
Detachable Cable Yes -
FEATURES Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Features Voice alerts -
BATTERY AND CHARGING Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Battery Type Headphone battery rechargeable Headset battery rechargeable - lithium polymer
Battery Capacity - 700 mAh
Battery Life 30 hour(s) 30 hours Both headphones last the same amount of time on a single charge.
Standby Time - 360 hours
Charging Time 3 hour(s) 3 hours The charging of both headphones last the same time.
WIRELESS LINK Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Transmission Range - 25 m
CONNECTIONS Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Connector Type Headphones (mini-phone stereo 3.5 mm) -
OTHERS Sennheiser PXC 550 Wireless EPOS I SENNHEISER IMPACT MB 660 UC
Included Accessories Carrying case, audio cable, in-flight plug adapter, 3.5 mm to 6.3 mm adapter, USB charge cable Carrying case, Bluetooth adapter, airplane adapter
Software Included CapTune -
Service & Support - Limited warranty - 2 years
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