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Koss KDE250 Noise Canceling Earphone overview

The KDE250 Dual element Technology Stereophones has a 13mm side-firing transducer that fits in the ear to provide crisp, clear mid and high frequencies, and a 20mm transducer that sits outside of the ear and provides high-impact bass response. The metal e

Manufacturers Product Description

Koss developed the KDE250 with a pair of dynamic transducers that mount at a perpendicular angle. The larger 20mm transducer is low frequency dominant and ported while the 13mm transducer focuses on mid and upper frequencies in a side firing angle. This combination of transducers allows greater efficiency and accuracy across the entire musical spectrum to levels that exceed audibility.

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General Information

Manufacturer Website Address
Brand NameKoss
Product TypeEarphone
ManufacturerKoss Corporation
Manufacturer Part Number163022
Product NameKDE250 Noise Canceling Earphone
Product ModelKDE250

Technical Information

Sound ModeStereo
Minimum Frequency Response40 Hz
Connectivity TechnologyWired
Impedance16 Ohm
Cable Length1.22 m
Maximum Frequency Response20 kHz


Earpiece DesignOver-the-ear
Earpiece TypeBinaural

Physical Characteristics

Form FactorOpen

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