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Compare 3 products

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Koss UR20 Headphones
Koss UR20
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Koss UR40 Headphones
Koss UR40
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Sennheiser PX 100-II Headphones
Sennheiser PX 100-II
Available colors
Editiorial reviews
1
1 editorial reviews
The Koss UR-20 are below-average headphones that perform poorly in most of our test categories. They are moderately comfortable but have a weak, unexciting sound...Read more
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2
2 editorial reviews
I'll write up a full review later, but these circumaural open headphones are just UNBELIEVABLE!   A recent pair of on ear headphones had impressed me with their sound quality, but were a major letdown in terms of comfort (lack thereof). Therefore, I began a search for potentially great...Read more
The Koss UR-20 are below-average headphones that perform poorly in most of our test categories. They are moderately comfortable but have a weak, unexciting sound...Read more
Read editorial reviews
5
5 editorial reviews
The Sennheiser PX-100-II are an open headphones designed for use when out and aboutRead more
The Sennheiser PX 100-II is a very good, stylish set of headphones that will nevertheless live in the shadow of the excellent original.Read more
The Sennheiser PX-100-II are an open headphones designed for use when out and aboutRead more
Read editorial reviews
User rating
42
4.0 out of 5
42 user ratings
5 stars
28 %
4 stars
45 %
3 stars
23 %
2 stars
0 %
1 stars
2 %
37
4.1 out of 5
37 user ratings
5 stars
32 %
4 stars
43 %
3 stars
24 %
2 stars
0 %
1 stars
0 %
36
4.2 out of 5
36 user ratings
5 stars
41 %
4 stars
36 %
3 stars
22 %
2 stars
0 %
1 stars
0 %

Technical details

Sound outputStereoStereoStereo
StyleOver-EarOver-EarOn-Ear
Connectivity technologyWiredWiredWired
Headset (integrated/enclosed microphone)nonono
Magnet materialNeodymium
N/A
Neodymium
Diaphragm materialMylar
N/A
Duofol

Design

Colour of productBlack
  • Black
  • Black,Grey
  • Black,Silver
  • Silver
  • Black
  • White
Acoustic designClosedClosedClosed
Attachment typeHeadbandHeadbandHeadband
CategoryDJ
N/A
Travel and Commuting
Foldableyesyesyes
Noise isolatingyes
N/A
N/A
Body material
N/A
N/A
  • Metal
  • Plastic

Dimensions

Weight10.02 oz6.1 oz2.61 oz

Sound

Channels2
N/A
N/A
Impedance32.0 Ω60.0 Ω32.0 Ω
Frequency range30 - 2000015 - 2200015 - 27000
Driver technologyDynamicDynamicDynamic
Total harmonic distortion (THD)0.3 %0.2 %0.1 %
Diaphragm diameter
N/A
N/A
1.57 in

Connectivity

Inputs supported3.5mm
N/A
3.5mm
Cable length2.421.21.2
Type of connector3.5mm3.5mm3.5mm
Detachable cablenonono
USB
N/A
nono
3.5 mm/6.3 mm adapter included
N/A
N/A
no

Often compared with Koss UR40

Often compared with Sennheiser PX 100-II