Superlux HD-662 F

If you want a pair of closed back headphones that are relatively flat and you're on a budget, then these are probably for you.
I use them in my studio for tracking everything, including drums, and they are great for that because they fill almost all the boxes for that use. They got good isolation, can get quite loud, the sound isn't too colored so you can hear what you're playing, and all that while being cheap so you don't have to worry too much about musicians throwing them around. In fact I plan to get a couple more pairs soon for the same purpose.
For comparison's sake, I used the t.bone HD990D before these and while they had good isolation and they're still working fine after many years of use, they were definitely coloring the sound a lot and sometimes I had to do EQ adjustments to get a better picture of what was being captured. I also own a pair of AKG 271 mkII from which Superlux seems to have copied the design. In comparison the AKGs are closer to the monitor sound (flatter) and are certainly more comfortable. They also have easily swapable cables which is a plus, but they also cost about 3-4 times the price (they've gotten much cheaper since I got them). One thing the Superlux have that the AKGs don't and it was kinda impressive, is very rich bass. I'm not talking about the crappy overwhelming super hyped bass you hear from many consumer type headphones, but actual rich bass. They might not be totally flat in the lower frequencies as I feel they are bumping the lows a bit, but you don't have any particular resonant frequencies striking out that would make them unusable. Truth is that I keep these around to check my mixes whenever I am mixing something particularly bass heavy, because they give me more info on what's happening down there in comparison to both the AKGs and my monitors. If you've got the money, the AKGs are a good investment, but if you can't afford pricier heaphones, or just need some extra pairs around for monitoring/tracking purposes like me, go for the Superlux.
On the downside, I would say that comfort is a bit of an issue because they will feel quite tight when you put them on your head. My head is above average in size so there's that, but I never had a problem with the AKGs or the t.bone in that matter. It's not a huge deal, but if you plan on wearing these for very long periods of time, they won't feel totally comfortable. On the other hand, after some hours of use I feel they aren't as tight as when I got them, but I have no way to measure that.
I would also say that the build quality is ok, but I feel like the plastic is kinda cheap and I'm not entirely sure it will hold up for years to come. I have to say though that someone already through them on the floor in frustration at some point and they didn't even get a scratch, so I may be wrong.

To sum up...
Pros: Great sound,rich bass, quite flat, good isolation, price
Cons: Might be uncomfortable (at least at first), ok-ish plastic

I bought these because I had to make some drum overdubs. I expected nothing too special, something like a 30¤ pair of cans. Well, I was wrong. As I first touched these headphones I noticed they were more solid than I thought. Then I plugged the cable in my interface, just to see everything worked, and I've got to say I was totally surprised. I'm not gonna tell you these are the best cans you can buy because they're not. But I don't think I ever saw something as good at this price, especially for closed headphones. Cheap closed headphones tend to be a little messy and almost always sound muddy. Well of course I'm not saying you could make good mixes with these (you can't, these are for tracking!) but the sound is not that bad. Maybe the high frequencies are a little too nasty when you crank the volume up. Another good feature is sound isolation, although it was totally expected. The cable is ok, feels good. Maybe the weakness of these headphones is how they feel on your head. It's not the triumph of comfort. They're quite uncomfortable, but nothing too bad. We're always talking about 30¤ headphones!

So, finally, I would recommend these if you need something like K271 but you wouldn't use them too much. These are great as occasional headphones. If you've got to use closed cans everyday maybe you could find better options and spending twice or three times could be worth for you in that case.

Soundwise, they're just as flat as you'd hope for studio headphones. They sound neutral, albeit a bit distant, I'd say. Obviously they're not thatsuited to actually listening to music "for fun", though. But for the price, they're a pair of bloody excellent studio 'phones, no matter if you're an amateur or a semi-professional.

The only issue I've had with them was that they're not that comfy. My earlobes are quite sensitive and the headphones cause my ears to sweat a lot, which has somehow begun to practically tear the skin apart from the back of my earlobes. (I should probably go see a skin doctor shouldn't I?)

I've never before had any problems with other headphones — it must just be the material that I'm reacting to. I hear there are replacement pads, though, so that might solve it.

They're obviously cheap, and the build quality gives it away but I've been using them on and off for a year or so now and they still look new to me. Totally worth the price if your earlobes aren't such wussies as mine are.

I dabble a little with home recording, and needed a decent set of phones to monitor, after reading the reviews I picked the Superlux HD 662f. They arrived within 2 days and my 1st impression was that they were a little too plastic and light - but after a few days and a few long sessions they are pretty good. Very comfortable, even for a few hours art a time, they cover all the ear and block out all extraneous noise. The sound reproduction is pretty good at any price, but very good at this price. I havent tried them with hifi or ipods, but for monitoring my guitar recording they do a good job.

I'm sure that there are better qua;ity phones- but they probably cost 2/3 or 4 times the cost.

At this price point there is not much you can offer with studio headphones but the Superlux HD-662 F does a decent enough of a job. They offer pretty balanced sound and a tight but full low-end. I believe the F model in the HD-662 series is the most flat when it comes to frequency response so it can be helpful doing some mixing with these but don't rely to them only, have a pair of monitor speakers too for mixing.

These headphones offer a great outside noise dampening because of their closed-back design. I could even recommend these as a recording headphones for a drummer, they damp that well.

I have not needed any other headphones for what I bought them for. I do mixing, recording and even just listen to music with them sometimes. They have served me very well for 4 years and the only thing that has happened is the wear of the headband and the cushions that are covered with some fake leather are getting some small cracks.

They come with 3.5mm jack with a 1/4" adapter jack. The adapter is threaded so it stays on very well.

Very nice headphones for a music hobbyist, especially for their price!

I bought these to use through my bass guitar combo, and effects unit so i can play at any time a any volume. The only price being my hearing and the subsequent sets of headphones id have to buy to deal with the speakers starting to struggle after a few months use. Saying that i was using standard home headphones so i decided to try some cheap studio H-phones to see if they would be able to handle bass frequencies without farting after use. These have been ok ive had them since Sept 2012 and there still doing ok and no farting. When i say play at any volume i dont thrash them, just enough volume to match the small 15w combo i use at home.
They can get a little warm as they encompass the whole of your ear to exclude any
sound other than whats coming out of the phones.
I would recommend these to anyone on a budget or for use in the way i use them- no point using Beyer or Sennheiser to play you guitar through. These cheap headphones are more than up to the task.