Sennheiser HMDC 27 vs. Poly Blackwire 3320-M

Headphones Comparison, Reviews and Tests

In depth comparison and review of Sennheiser HMDC 27 and Poly Blackwire 3320-M. 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 HMDC 27 vs. Poly Blackwire 3320-M Comparison Chart
DESIGN AND DIMENSIONS Sennheiser HMDC 27 Poly Blackwire 3320-M
Product Type Headset - wired Headset - wired - USB-C
Series - Blackwire 3300 series
Height - 17.8 cm
Width - 15.5 cm
Depth - 3.2 cm
Weight 240 g 130 g Poly Blackwire 3320-M are lighter than Sennheiser HMDC 27 headphones.
Colour - Black
Earpad Material - Foam
Recommended Use Professional audio Portable electronics, computer
SOUND QUALITY Sennheiser HMDC 27 Poly Blackwire 3320-M
Headphones Form Factor Full size On-ear
Headphones Technology Dynamic -
Ear Cups Type Closed -
Adjustable Headband - Yes
Connectivity Technology Wired Wired
Active Noise Cancelling Yes Yes Both headphones are equipped with active noice cancellation.
Active Noise Cancelling Technology - SoundGuard
Sound Output Mode Stereo Stereo
Frequency Response 8 - 18000 Hz 20 - 20000 Hz Poly Blackwire 3320-M offer a larger frequency range than Sennheiser HMDC 27.
Total Harmonic Distortion (THD) <0.1% -
Sensitivity - 116 dB
Impedance - 32 Ohm
Max Sound Pressure 128 dB 118 dB
Diaphragm - 32 mm
Features - Dynamic EQ optimised
In-Cord Volume Control - Yes
MICROPHONE Sennheiser HMDC 27 Poly Blackwire 3320-M
Type Boom Boom
Microphone Technology Dynamic -
Microphone Operation Mode Hypercardioid -
Frequency Response 40 - 18000 Hz 100 - 10000 Hz Sennheiser HMDC 27 offer a larger microphone frequency range than Poly Blackwire 3320-M.
Sensitivity - -38 dB
REMOTE CONTROL Sennheiser HMDC 27 Poly Blackwire 3320-M
Controls - Mute, volume, answer/end
FEATURES Sennheiser HMDC 27 Poly Blackwire 3320-M
Features EPOS ActiveGard -
CONNECTIONS Sennheiser HMDC 27 Poly Blackwire 3320-M
Connector Type - USB (24 pin USB-C)
OTHERS Sennheiser HMDC 27 Poly Blackwire 3320-M
Included Accessories Wind screen, cable clip, headband padding -
Compatibility - Mac, Windows
Software Certification - Certified for Microsoft Teams
Supported Host Device OS - Windows 10, macOS
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