KEF M500 vs. Poly Blackwire 3320-M

Headphones Comparison, Reviews and Tests

Detailed comparison and review of KEF M500 and Poly Blackwire 3320-M. 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

KEF M500 vs. Poly Blackwire 3320-M Comparison Chart
DESIGN AND DIMENSIONS KEF M500 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 208 g 130 g Poly Blackwire 3320-M are lighter than KEF M500 headphones.
Colour Classic Black
Body Material Aluminium alloy -
Earpad Material - Foam
Recommended Use Portable electronics, phone Portable electronics, computer
SOUND QUALITY KEF M500 Poly Blackwire 3320-M
Headphones Form Factor On-ear On-ear
Adjustable Headband Yes Yes
Foldable Yes - KEF M500 can be folded.
Connectivity Technology Wired Wired
Active Noise Cancelling - Yes Poly Blackwire 3320-M are equipped with active noice cancellation.
Active Noise Cancelling Technology - SoundGuard
Sound Output Mode Stereo Stereo
Frequency Response 20 - 20000 Hz 20 - 20000 Hz Both headphones offer the same frequency response.
Max Input Power 30 mW -
Sensitivity 103 dB 116 dB Poly Blackwire 3320-M have higher sensitivity than KEF M500.
Impedance 32 Ohm 32 Ohm
Max Sound Pressure - 118 dB
Diaphragm 40 mm 32 mm KEF M500 have a thicker diaphragm than Poly Blackwire 3320-M.
Magnet Material Neodymium -
Features - Dynamic EQ optimised
In-Cord Volume Control Yes Yes
MICROPHONE KEF M500 Poly Blackwire 3320-M
Type On-cable Boom
Frequency Response - 100 - 10000 Hz
Sensitivity - -38 dB
REMOTE CONTROL KEF M500 Poly Blackwire 3320-M
Controls Volume, answer/end, play/pause, next/previous track Mute, volume, answer/end
CABLE KEF M500 Poly Blackwire 3320-M
Cable Type 2 x headset cable - 1.3 m -
Plated Connector Gold -
CONNECTIONS KEF M500 Poly Blackwire 3320-M
Connector Type Headset (mini-phone stereo 3.5 mm) USB (24 pin USB-C)
OTHERS KEF M500 Poly Blackwire 3320-M
Included Accessories Protective case, in-flight plug adapter, 3.5 mm to 6.3 mm adapter -
Compatibility - Mac, Windows
Software Certification - Certified for Microsoft Teams
Supported Host Device OS - Windows 10, macOS
Service & Support Limited warranty - 1 year -
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