Sennheiser HD 2.30i vs. Poly Blackwire 325

Headphones Comparison, Reviews and Tests

Side by side comparison and review of Sennheiser HD 2.30i and Poly Blackwire 325. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.

Headphones Specifications Comparison

Sennheiser HD 2.30i vs. Poly Blackwire 325 Comparison Chart
DESIGN AND DIMENSIONS Sennheiser HD 2.30i Poly Blackwire 325
Product Type Headphones - wired - 3.5 mm jack Headset - wired - USB, 3.5 mm jack
Series HD 2 300 Series
Weight 262 g -
Colour Black | White -
Earpad Material Leatherette -
Headband Material - Metal
Recommended Use Portable electronics -
SOUND QUALITY Sennheiser HD 2.30i Poly Blackwire 325
Headphones Form Factor On-ear On-ear
Ear Cups Type Closed -
Foldable Yes - Sennheiser HD 2.30i can be folded.
Connectivity Technology Wired Wired
Sound Output Mode Stereo Stereo
Frequency Response 18 - 22000 Hz 20 - 20000 Hz Sennheiser HD 2.30i offer a larger frequency range than Poly Blackwire 325.
Total Harmonic Distortion (THD) 0.5% -
Sensitivity 115 dB/Vrms -
Impedance 22 Ohm -
Max Sound Pressure 115 dB -
Features - SoundGuard Technology
In-Cord Volume Control Yes Yes
MICROPHONE Sennheiser HD 2.30i Poly Blackwire 325
Type On-cable Boom
Microphone Operation Mode Mono, omni-directional -
Frequency Response - 100 - 10000 Hz
REMOTE CONTROL Sennheiser HD 2.30i Poly Blackwire 325
Controls Volume, answer/end, play/pause Mute, volume, answer/end
CABLE Sennheiser HD 2.30i Poly Blackwire 325
Cable Type Headphones cable - 1.4 m Headset cable - 2.13 m
Cable Length 1.4 m 2.13 m
Detachable Cable Yes -
FEATURES Sennheiser HD 2.30i Poly Blackwire 325
Additional Functions - DSP
CONNECTIONS Sennheiser HD 2.30i Poly Blackwire 325
Connector Type Headphones (mini-phone stereo 3.5 mm 4-pole) USB (4 PIN USB Type A)
Headphones (mini-phone 3.5 mm 4-pole)
OTHERS Sennheiser HD 2.30i Poly Blackwire 325
Compatibility iPhone -
Service & Support Limited warranty - 2 years Limited warranty - 2 years
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