We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Data about your interaction with this site and the ads shown to you may be shared with companies involved in the delivery and/or personalisation of ads on this site and elsewhere online.

Compare 3 products

Close
Koss UR40 Headphones
Koss UR40
Close
Sennheiser PX 100-II Headphones
Sennheiser PX 100-II
Close
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
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 %
36
4.2 out of 5
36 user ratings
5 stars
41 %
4 stars
36 %
3 stars
22 %
2 stars
0 %
1 stars
0 %
110
3.7 out of 5
110 user ratings
5 stars
33 %
4 stars
23 %
3 stars
26 %
2 stars
14 %
1 stars
1 %

Technical details

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

Design

Colour of product
  • Black
  • Black,Grey
  • Black,Silver
  • Silver
  • Black
  • White
  • Black
  • Black,Red
  • Grey
Acoustic designClosedClosedHalf opened
Attachment typeHeadbandHeadbandHeadband
Foldableyesyes
N/A
Body material
N/A
  • Metal
  • Plastic
Leather
Category
N/A
Travel and CommutingAudiophile
Connector contacts plating
N/A
N/A
Gold

Dimensions

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

Sound

Impedance60.0 Ω32.0 Ω32.0 Ω
Frequency range15 - 2200015 - 2700010 - 30000
Driver technologyDynamicDynamicDynamic
Total harmonic distortion (THD)0.2 %0.1 %0.25 %
Diaphragm diameter
N/A
1.57 in2.0 in
Driver size
N/A
N/A
1.97 in

Connectivity

Cable length1.21.22.5
Type of connector3.5mm3.5mm3.5mm
USBnonono
Detachable cablenonono
Inputs supported
N/A
3.5mm
  • 3.5mm
  • 6.35mm
3.5 mm/6.3 mm adapter included
N/A
noyes

Power

Battery operatednonono
Power handling capacity
N/A
N/A
300.0 mW

Often compared with Koss UR40

Often compared with Sennheiser PX 100-II

Often compared with Superlux HD681