Superlux HD-681 Evo WH

Bought in 2014. Used it daily for 3 years after which the band part of the headband started cracking and the stretchy silicone headband holders (the ones that regulate the headband size automatically) that were inside the plastic finally broke off. I made a new headband out of an old laptop bag's strap and it's been good ever since. 3 stars for build quality since it has an obvious design flaw (bought 3 pairs, 2 for my friends, they all broke around the same time). I also had to replace the cable jack around 2019 or so since it broke off. The sound, for the money, is very good, bass is punchy, they vibrate around the head if you crank up the volume, an overall "fun" sound, not too anemic, not too muddy, no shrill highs. They are very light so that's a plus. I have really big ears so they touch the plastic and that can hurt after a few hours of listening (no such problem with DT-770's or original HD-330s). Detachable cables in 2 lengths are a plus and I'm using them as an extension cables for other purposes when not listening with these headphones. I have many better and 10x pricier headphones today, but the 681 Evo's still get used sometimes as a back-up pair, or when some friends are over, etc.

For this pricepoint the sound and wear is (Wooow) unbeatable, but ... read on.
Blindfolded you will swear you're wearing expensive headphones; accurate soundplacement, good soundstage, well balanced low/mid/high and also very comfy. Whatever music you throw at it, it will silence you up and leave you in disbelief when you hear the price. No, really? Again wooow. But, as I mentioned, there's a but ...
Unfortunately the inside of the headphone, to be precise the soldering of the speakers is below par. I had two pairs and both of them broke down because of inside wiring cracked (don't know why) within a year. Tried to fix them, but didn't work. Seems this is the point of low cost. Pity, I would pay a bit more to have better internal quality, because, OMG, these sound great. Maybe I the future I'll buy a revised set of these ...

Definitely one of the best headphone (along with other superlux headphones) in its price range and even competes in the sound department with more expensive headphones in the 100 Euro range.

--Sound--

Good bass hump, slightly recessed midrange and good high extension (Slight V-shaped sound signature). With the default pleather pads, the sound is 'closer' the mids are a bit more present. With the included velour pads, they sound a little distant, but the velour pads are much more comfortable.

--Comfort--

Great comfort with the included velour pads, the pleather pads are not very soft, and will make your ear sweat. Clamping pressure is fine on my personal use.

--Build--

The white accents are very glossy, which makes them very cheap looking. But otherwise the headband are good and solid, and slightly padded (compared to the non-padded HD 668). The ear cups are very solid as well.

I bought these for studio cue mixes, I've found them to be great for guitarists and bassists or anyone who doesn't have a microphone too close to them. They sound and feel really good but they don't get very tight so bleed could be an issue if there is a microphone nearby.

Pros..
The sound is really good and clear
Price is fantastic
Came with replacement ear pads

Cons..
Can't tighten the strap
Can fall off if the wearer moves a lot

Overall, definitely worth a purchase for what I needed it for, but the ability to adjust the tightness would be a huge advantage.

It's a birthday gift for my brother, I got it delivered to him in another town, so I can't review it myself, but here's what he thinks of the 681 Evo:

Comfort: the headphones are lightweight and well balanced, wearing them for a long time shouldn't be tiresome. Two pairs of cushions, leatherette or velours, allow to find the touch you want.

Sound: they deliver a complete range, with lows more present without overwhelming other frequencies.

Workmanship and finish seem to be there; good materials assembled with care. 2 cable lengths and a 6.35mm adapter round up the connectivity.

He gives them 4 stars overall.

I am a 4th year music technology student and haven't much money but wanted some good headphones for college as my last Seinheiser ones where broke by a family member sitting on them!
I looked up loads of reviews on many different cheap headphones but with good quality and found these were to be the best. I bought them from Thomann and have found them to live up to the hype. A friend of mine bought some AKG headphones for over 300 euro and I honestly feel like these headphones are very similar to them after using his and comparing my ones.
They are comfy however I found that after time they are starting to slip on my head a little as they are fit for all sizes so you cannot adjust them so people with small heads they can be a bit annoying after a bit of wear. The only other problem I had with them was that there is a lot of spillage. Other than that I cant fault them. I use them for mixing music for college and listen to music in them too.

I would definitely recommend them because for the price they are well worth it.