Superlux HD-681


Studio Headphones

  • Semi-open
  • Circumaural (full size)
  • Dynamic
  • Self-adjusting headband
  • Peak SPL: 98 dB
  • Impedance: 32 Ohm
  • Frequency Range: 10 - 30000 Hz
  • Maximum Power: 300 mW
  • THD 100 mW@1KHZ<1%
  • 2.5m Cable with 3.5 mm Stereo mini-jack
  • Weight (including cable): 278 g
  • Weight (excluding cable): 230 g
  • Including 6.3 mm mini-jack adapter and a bag
available since April 2009
Item number 218865
sales unit 1 piece(s)
Design Over-Ear
System Semi Open
Impedance 32 Ohms
Frequency range 10 Hz – 30000 Hz
Adapter Yes
Replacable Cable No
Marrone/Argento Black
Sensitivity 98 dB
Max. SPL 98 dB
Type Of connector Jack
Type Of Connector Mini Jack
Weight 230 g
Color Black
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Not exactly Pro standards, but superb for music and gaming on a budget!
Nate in Belgium 07.06.2020
I bought these to listen to music and for playing PC games after reading online recommendations. I have them connected to a Monolith Liquid Spark headphone amp connected to my PC's onboard DAC line out.

My main decision was based on sound quality, imaging and price. I liked the noted sound signature listed on the Superlux website and from reviews I've read. I have to say I'm actually blown away with how they sound! These have a nicer sound signature than my old Sennheiser HD580s. Yes they are cheaply built, but look how much they cost. I'm sure if you look after them and treat them with respect they will last long enough. My biggest complaint is the clamping force and thin earpads. Very uncomfortable, I've ordered thicker velour pads from China to compensate.

Pros: Spacious sound with good clarity, depth and punch making them ideal for gaming. Gorgeously musical. Ridiculous price.

Cons: Treble forward. Not going to compete with high end headphones (but snapping at the heels of phones costing 5-10x as much). Clamping force is probably the worst I've encountered. Build quality fits what you pay


Well worth the price
JJ_III 12.08.2019
I needed a pair of headphones for work just to filter out some noise and helping to focus. I tried out couple cheap ones, but was very disappointed with sound quality every time. I already had a pair of Superlux HD-330's which I had been very happy with for about four years already. I checked back and forth between them and these (and HD-660) but decided to give these a shot.

Enough blabbering - these headphones are absolutely worth the price. The sound is pretty clear and the phones are comfortable to wear. They are a little bass heavy though so keep that in mind if you are considering between these and some other ones. But for my purpose, casual music listening while in work, they are just perfect. They are semi-open, but I'd be ready to call them open. It's good when someone tries to reach out from outside as they don't need to shout. On the other hand they are massive enough to be seen so other understand that they might need to raise voice — good perk compared to earphones.

Overall strongly recommended for casual use. Notice still that the given 5 stars is strongly quality-price ratio -based, so if you want the best sound quality I would recommend spending a bit more.


Decent affordable open headphones
Richard0401 28.12.2020
-Decent quality, doesnt feel as cheap as the price would suggest
-Pretty flat sounding

-High frequencies are not very defined
-Cable not removable

I got these headphones as a backup and to try out what open headphones have to offer as I've only used closedbacks before. I mainly used it for gaming and for silently practicing guitar and for those purposes these headphones are great. Sound is decent, its fairly flat, not too much bass and not very bright either, nicely balanced. The soundstage (stereo separation) is great, not perfect but definately usable for most situations, especially if you are on a budget. Comfort is not the greatest but I can wear it for an hour or two without discomfort so its not too bad. The padding is very stiff but the clamping force on your ears is not that strong so it cancels out. You dont need a good seal for open headphones afterall...

If you are on a limited budget I can highly recommend these headphones. They sound flat enough for basic mixing and the open design also helps a lot.
However... I can't recommend these headphones for outside or public use because of its open design.
Also if you are lookign for a very high quality professional monitor then I recommend you spend a bit more money...


Stopped Working After 1 Year
Alexion 23.09.2021
I bought these headphones about a year ago, the sound was pretty decent but had some clipping issues when the volume was turned up to max. This wasn't a very big problem because they got very loud at that volume so i could look past it. After 1 year of normal use however the left side stopped working properly. I had to fiddle the the jack to get the sound working again and now the left side completely stopped working. Its a shame really these were one of the most comfortable headphones I had could have them on for hours.


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