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Compare 3 products

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AKG K240 Studio Headphones
AKG K240 Studio
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Superlux HD668B Headphones
Superlux HD668B
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Superlux HD681 Headphones
Superlux HD681
Available colors
Editiorial reviews
5
3.9 out of 5
3 user ratings
5 stars
33 %
4 stars
33 %
3 stars
33 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
3
3 editorial reviews
The Superlux HD668B is an incredible performer for those who put resolution and clarity above all else.Read more
Superlux HD 668B: Review by Headfonia - The Headphone Enthusiast's WebsiteRead more
The Superlux HD 668B are great-sounding and affordable critical listening headphones. They let in a lot of ambient noise and leak enough to be distracting to tho...Read 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
70
3.6 out of 5
70 user ratings
5 stars
25 %
4 stars
30 %
3 stars
25 %
2 stars
14 %
1 stars
4 %
60
3.9 out of 5
60 user ratings
5 stars
30 %
4 stars
35 %
3 stars
26 %
2 stars
6 %
1 stars
1 %
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-EarOver-EarOver-Ear
Connectivity technologyWired
N/A
Wired
Headset (integrated/enclosed microphone)no
N/A
no
Magnet materialNeodymiumNeodymiumNeodymium

Design

Colour of product
  • Black
  • Black,Gold
Black
  • Black
  • Black,Red
  • Grey
Acoustic designHalf openedHalf openedHalf opened
Attachment typeHeadband
N/A
Headband
Body materialSteel
N/A
Leather
CategoryStudioStudioAudiophile
Connector contacts plating
N/A
N/A
Gold

Dimensions

Width7.48 in
N/A
7.36 in
Depth4.33 in
N/A
4.21 in
Height7.87 in
N/A
7.87 in
Weight8.47 oz7.83 oz9.74 oz

Sound

Impedance55.0 Ω56.0 Ω32.0 Ω
Frequency range15 - 2500010 - 3000010 - 30000
Diaphragm diameter1.96 in
N/A
2.0 in
Driver technologyDynamic
N/A
Dynamic
Total harmonic distortion (THD)0.3 %0.3 %0.25 %
Maximum input power200.0 mW
N/A
N/A
Sensitivity
N/A
98.0 dB
N/A
Driver size
N/A
N/A
1.97 in

Connectivity

Inputs supported
  • 3.5mm
  • 6.35mm
3.5mm
  • 3.5mm
  • 6.35mm
Cable length332.5
3.5 mm/6.3 mm adapter includedyes
N/A
yes
Type of connector3.5mm
N/A
3.5mm
USBno
N/A
no
Detachable cableyesyesno

Often compared with AKG K240 Studio

Often compared with Superlux HD668B

Often compared with Superlux HD681