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Superlux HD-681 Evo BK

Studio Headphones

  • Dynamic
  • Circumaural (full size)
  • Semi-open
  • 50 mm Driver
  • Peak SPL: 98 dB
  • Impedance: 32 Ohm
  • Frequency Range: 10 - 30000 Hz
  • Maximum Power: 300 mW
  • 3,5 mm Stereo mini-jack
  • Weight (excluding cable): 276 g
  • Colour: Black
  • Includes 1x 1m cable, 1x 3m cable, 6,3 mm Stereo mini-jack adapter, carry pouch and one extra pair of velour earpads

Further information

Design / Construction Over Ear
System Semi Open
Impedance 32 Ohms
Frequency range 30000 Hz – 10 Hz
Adapter Yes
Replaceable Cable No

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Superlux HD-681 Evo BK 48% bought this exact product
Superlux HD-681 Evo BK
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Superlux HD-681 11% bought Superlux HD-681 19,80 €
Superlux HD-681 Evo WH 9% bought Superlux HD-681 Evo WH 29 €
Superlux HD-662 BK Evo 7% bought Superlux HD-662 BK Evo 29 €
Superlux HD-681 B 6% bought Superlux HD-681 B 19,80 €
Our most popular Studio Headphones
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272 written ratings Read all reviews
Total
sound
comfort
quality

Surprisingly detailed sound for less than 30?

08.04.2015
I had been using Sennheiser HD595 for several years until the headphone cable got caught between the armrest of my chair, which eventually caused it to fall down to its' death. So looking for a replacement headphone with a similar sound clarity but with a far smaller budget in mind... I wasn't very optimistic to say the least.

The Superlux HD-681 Evo arrived in a box where the product laid well packed. It includes a 3.5 to 6.3 mm headphone converter as well as two different cables (1 metre and 3 metre). The converter is not of best quality, it actually uses a clip-on in order to stay secured. I didn't like that. The cables are straight, quite thin and the connector seems to be adequate. They also included extra velour pads, which I as a matter of fact immediately replaced the pleather pads with (pleather pads are by default installed on the cans).

For a 28? pair of headphones I must say the build-quality is surprisingly robust. However, at the beginning I felt quite a force pressing around my temples and ears. To alleviate this, I let it stretch for several days (I used the triangle-shaped cardboard package which the headphone was wrapping itself around, plus some books for further stretching). After a few days of stretching the clamping sensation was gone and by now I had already burned them in some (I used various music and a burn-in soundfile found from JBL's website). If I recall correctly, someone recommended at least 100 hours of burn-in for this model.

The sound. Oh the sound... Clear. Wide. That was my first impression. For a headphone to sound this good for such a low price is nothing more than a bargain. The clarity and separation of instruments is something I was greatly pleased with, especially when listening to soft rock or similar music. While playing Toto - Africa from beginning. Kick drum, soft snare, cow bell on drum kit in the left ear, extra handheld cow bell in the right ear, congas in middle, succeeded by the famous synth-riff. Wonderful. However (be warned)! The highs were too high to my ears. I have some sensitivity to sibilance and I feel that these headphones amp those frequencies quite adamantly. The bass is very much present, but it is not presented in a controlled manner as it interferes and sometimes overpowers the mids in other songs.

After using these headphones sporadically (letting them burn in when not wearing them) I always felt the highs were unbearable. They were simply too pronounced and sharp for me to enjoy 90% of whatever music I was listening to. Well luckily there are two ways of fixing this.. Well, actually three, but two of them are very similar just differentiating in methods, so let's stick with 2. EQ (Equalization) and physical modification of the headphone.
After playing around with an EQ, I mostly adjusted the 5k and up, by simple lowering them more and more the higher up I advanced in frequencies. Now this may be placebo, but I felt the presentation and sonical experience turned muddy and veiled. So I tried a second alternative, add cotton pads (those round, white soft pads used for facial-cleansing and make-up removal). I simply added one pad inside each cup, fitted them right through the opening without needing to open the cups up, using my finger to slide the pad under the velour pad edges. To explain my initial reaction: it felt right. The sound was just the way I liked it, similiar sound profile that I was used to from my 595's. The sibilance was gone and I still found the headphones sounding enjoyable. Now, as I said, it may be placebo or it may not be, so it should be up to everyone to try an EQ or cotton pads. The bass is still quite the same. To be honest, I don't recall exactly how it sounded without the cotton installed, but hey, these cost 28?. Some sacrifice is inevitable.

Final thoughts.
These headphones are so cheap, that... that they don't sound cheap? That didn't make no sense, but neither does the price tag for these. These cans sound to my ears as a pair of 100? (or even more) phones. But because they are inexpensive, these have become my main "fun-phones", that is, I do not really need to worry too much how I'm handling these, whether it's at home or on the move somewhere else. It's carefree. It's fun. The sound is also quite exciting for watching films as the bass is very present when needed. Rock music goes quite well with these, as well as EDM. The only thing I really can't do with these, is enjoy classical music, but I already knew this prior to my purchase. The HD-681 Evo's bass is simply not very controlled, too much interference is going on around the low mids which takes away much of an orchestra's presentation. But remember, 28?, sacrifice is inevitable. I often use these when playing VST pianos in Cubase, it's a pleasure.

Ok just buy them already, have some fun.
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Total
sound
comfort
quality

Great sound but...

08.04.2017
I've been using Superlux cans for a few years now and it's very hard to fault the sound they deliver, although not as flat as you might want for production work they do offer a great reference point for the low end and very high frequencies.

The HD-681 Evo BK do offer the great sound that I've enjoyed from Superlux over the years but the build quality is shockingly poor at best. I returned my pair quite quickly so I can't talk as to the longevity but the plastics are extremely cheap feeling and overall construction is not good at all. I know these are very cheap headphones but still, I expected a little more from this brand.

I found the fit didn't work for me at all, maybe I have a smaller than average head, I don't know but they felt slack and this hindered the compression with my ears and thus limiting bass response and mostly comfort, also worth mentioning this has a big impact if you wear glasses and not a positive impact to say the least.

The positives are purely in the sound, full low end, maybe a little too full for some, punchy mid range although not quite as driven as I'd like and smooth treble, all told you will have a great listening experience here if you are OK with the build and comfort factor these provide.
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