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Compare 4 products

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Koss UR40 Headphones
Koss UR40
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Sennheiser HD 201 Headphones
Sennheiser HD 201
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Sennheiser PX 100-II Headphones
Sennheiser PX 100-II
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Superlux HD681 Headphones
Superlux HD681
Available colors
Editiorial reviews
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
7
3.6 out of 5
5 user ratings
5 stars
20 %
4 stars
40 %
3 stars
40 %
2 stars
0 %
1 stars
0 %
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
7
3.9 out of 5
3 user ratings
5 stars
0 %
4 stars
100 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
37
4.1 out of 5
37 user ratings
5 stars
32 %
4 stars
43 %
3 stars
24 %
2 stars
0 %
1 stars
0 %
62
3.7 out of 5
62 user ratings
5 stars
40 %
4 stars
16 %
3 stars
25 %
2 stars
12 %
1 stars
4 %
36
4.2 out of 5
36 user ratings
5 stars
41 %
4 stars
36 %
3 stars
22 %
2 stars
0 %
1 stars
0 %
111
3.7 out of 5
111 user ratings
5 stars
33 %
4 stars
23 %
3 stars
27 %
2 stars
14 %
1 stars
1 %

Technical details

Sound outputStereoStereoStereoStereo
StyleOver-EarOn-EarOn-EarOver-Ear
Connectivity technologyWiredWiredWiredWired
Headset (integrated/enclosed microphone)nononono
Magnet material
N/A
NeodymiumNeodymiumNeodymium
Diaphragm material
N/A
N/A
Duofol
N/A

Design

Colour of product
  • Black
  • Black,Grey
  • Black,Silver
  • Silver
  • Black
  • Black,Silver
  • Grey
  • Black
  • White
  • Black
  • Black,Red
  • Grey
Acoustic designClosedClosedClosedHalf opened
Attachment typeHeadbandHeadbandHeadbandHeadband
Foldableyes
N/A
yes
N/A
Body material
N/A
Leatherette
  • Metal
  • Plastic
Leather
Category
N/A
StudioTravel and CommutingAudiophile
Noise isolating
N/A
yes
N/A
N/A
Connector contacts plating
N/A
N/A
N/A
Gold

Dimensions

Weight6.1 oz5.82 oz2.61 oz9.74 oz
Width
N/A
N/A
N/A
7.36 in
Depth
N/A
N/A
N/A
4.21 in
Height
N/A
N/A
N/A
7.87 in

Sound

Impedance60.0 Ω24.0 Ω32.0 Ω32.0 Ω
Frequency range15 - 2200021 - 1800015 - 2700010 - 30000
Driver technologyDynamicDynamicDynamicDynamic
Total harmonic distortion (THD)0.2 %0.7 %0.1 %0.25 %
Channels
N/A
2
N/A
N/A
Driver size
N/A
1.57 in
N/A
1.97 in
Diaphragm diameter
N/A
N/A
1.57 in2.0 in

Connectivity

Cable length1.23.01.22.5
Type of connector3.5mm
  • 3.5mm
  • 6.3mm
3.5mm3.5mm
USBnononono
Detachable cablenononono
Inputs supported
N/A
3.5mm3.5mm
  • 3.5mm
  • 6.35mm
3.5 mm/6.3 mm adapter included
N/A
yesnoyes

Power

Battery operatednononono
Power handling capacity
N/A
30.0 mW
N/A
300.0 mW

Often compared with Koss UR40

Often compared with Sennheiser HD 201

Often compared with Sennheiser PX 100-II

Often compared with Superlux HD681