JBL Quantum 300 vs. Poly EncorePro 320

Headphones Comparison, Reviews and Tests

In depth comparison and review of JBL Quantum 300 and Poly EncorePro 320. 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

JBL Quantum 300 vs. Poly EncorePro 320 Comparison Chart
DESIGN AND DIMENSIONS JBL Quantum 300 Poly EncorePro 320
Product Type Headset - wired - USB, 3.5 mm jack Headset - wired - USB-C
Series - EncorePro 300 series
Height - 6.7 cm
Width - 11.1 cm
Depth - 14.9 cm
Weight 245 g 74 g Poly EncorePro 320 are lighter than JBL Quantum 300 headphones.
Colour Black Black
Earpad Material Memory foam Artificial leather
Recommended Use - Computer
SOUND QUALITY JBL Quantum 300 Poly EncorePro 320
Headphones Form Factor Full size On-ear
Connectivity Technology Wired Wired
Sound Output Mode Stereo Stereo
Frequency Response 20 - 20000 Hz 20 - 10000 Hz JBL Quantum 300 offer a larger frequency range than Poly EncorePro 320.
Max Input Power 30 mW -
Sensitivity 100 dB -
Impedance 32 Ohm 32 Ohm
Diaphragm - 5.6 mm
Features JBL Quantum SURROUND SoundGuard DIGITAL Technology
In-Cord Volume Control - Yes
MICROPHONE JBL Quantum 300 Poly EncorePro 320
Form Factor Detachable headset microphone -
Type Boom Boom
Microphone Operation Mode - Omni-directional
Noise Cancelling - Yes Poly EncorePro 320 microphone can cancel out ambient noise.
Noise Cancelling Technology - Passive noise cancellation (PNC)
Frequency Response 100 - 10000 Hz 35 - 21000 Hz Poly EncorePro 320 offer a larger microphone frequency range than JBL Quantum 300.
Sensitivity -40 dB 40 dB
Sensitivity Margin - +/- 3dB
Signal-To-Noise Ratio - 53 dB
REMOTE CONTROL JBL Quantum 300 Poly EncorePro 320
Controls - Mute, volume, answer/end
CABLE JBL Quantum 300 Poly EncorePro 320
Cable Type - Headset cable - 2.19 m
Cable Length - 2.19 m
FEATURES JBL Quantum 300 Poly EncorePro 320
Features - Boom mic length 135mm, 290° rotatable microphone
CONNECTIONS JBL Quantum 300 Poly EncorePro 320
Connector Type Headphones (mini-phone stereo 3.5 mm 4-pole) USB (USB Type-A)
OTHERS JBL Quantum 300 Poly EncorePro 320
Included Accessories USB adapter -
Compatibility - Mac, Windows
Software Certification - Certified for Microsoft Teams
Supported Host Device OS - macOS, Windows
TAA Compliant - Yes
Service & Support 1-year warranty -
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