PARENT -R10

 ... Headphones
These head phones are the best!! Wicked nice bass and sound. The things shack when I crank it!! It says they are for home stereo, but im using it with my portable Mini Disc player. They are unbelevably light!! I recomend these for anyone looking for a good pair of headphones.

 3 years and going strong
I bought these headphones over 3 years ago, and they are still going strong. I use them in the office only, so they get little abuse (e.g. I don't blast the bass at work, or anything). I have dropped them a number of times, though, and they didn't break. The sound quality is good for listening to CDs, but like I said, I don't blast the bass or anything. Finally, they are extremely comfortable. I wear them for 7+ hours some days and they don't bother me one bit.

 Affordable, Quality phones. Couldn't be Happier
I ordered these headphones pretty much because I had a few bucks left on an ... gift certificate and figured since I had already ordered a portable mp3 player and spend so much time on the computer listening to music (while working, surfing the net, wasting away time, etc) I could always use a pair of quality headphones.
I plugged them in and opened up my Winamp playlist the moment the headphones arrived and I took them out of the box. I couldn't be happier with them.
You know how there are certain aspects of a song you can only hear when listening to it through headphones? Background music, instrumental, balance tracks, sound effects and certain sounds to a song you just can't hear when listening to them through speakers at a normal volume level? These phones really make every part of the songs I listen to stand out. Songs I've heard thousands of times through speakers or my previous pair of mediocre headphones are completely new pieces of music for me now. The bass is great, outside noise is effective blocked out and it just seems every song I listen to now has a completely new, fresh, better sound to it. Without exagerrating, I can say that listening to one of my favorite songs with these headphones for the first time actually gave me goosebumps because I heard parts to that song I had never heard before.
For the price and the sound quality, these phones are an excellent buy.

 Amazing!
These headphones are great. You can't find anything else that sounds this good in this price range. Koss does stereophones right!

I have had my UR-20s for more than a year. They still sound great and have been stuffed into my backpack almost every day since i bought them. One of my size adjuster clips has broken, but it is no doubt due to my reckless use. Even broken, they fit comfortably on the head.

The ear cups are big enough for anyone's ears. They cover your ear completely and do not "crowd" your ear like the smaller UR-29s do.

The bass is amazing and the insulating ring makes such a close seal with your head that you will not hear anything while you have these headphones on. I don't like listening to music while I sleep, but I have used these headphones as noise reducers (without playing any music) on many occasions and bus rides.

Note that these headphones are larger than most. This is probably why they sound so great. I especially like that the headband is made of rubber coated metal to keep the phones close to your head, with a cloth balancing strap below that to make it comfortable in any situation.

Koss is the king as far as affordable, amazing stereophones go. Buy the UR-20s and you'll be glad you did. I have had no problems.

 Appearance Not so Grand BUT IMPRESSIVE Sound
When I first opened my box I was a bit dissapointed at the looks of my recently bought headphones so I went through and checked the return policy as I carefully opened up the packaging so that it might be returned in proper condition. But when I tried on the headphones to listen to a few mp3s of my iMac I was quite impressed at the sound it provided. I've now been listening to them for over an hour and a half so I've decided to turn in this review. The power behind these headphones is great enough to play extremely loudly without distortion of spund due to the bass. The ear rests are very comfortable (allowing hours of easy listening). These also come with an adapter for larger headphone sockets if your system requires that. I'm keeping this until they're worn. enjoy!

 As sturdy as it looks, and with very good sound for the price
I bought two pairs of these when I saw them in a store on sale for under $15 each. They've both gotten extensive use over the past couple years. The cushioning on the outside is cloth inside a black material that I suppose imitates leather in looks and feel. This outer material on the cushions has worn off in flakes on both pairs, which makes it look raggedy, but the comfort and sound quality isn't affected by it so I don't consider it a big deal. The headband adjust on one side of one pair seems to have had something break inside it which lets that earmuff go farther down than it "should," but likewise, it's something to be expected with this much use and hasn't affected comfort.

The cable is also thicker than most headphone cables I'm used to, which is good news for people who find themselves constantly rolling over cables with their chairs and such.

I've compared the sound quality to the Koss QZ-50's (which I own) and a library's Koss UR-10's or 15's (can't remember which). Though the QZ-50's do sound better when they have their active noise cancelling feature turned on, the UR-20's are the most comfortable of the three, have the richest bass, are the most durable, and won't eat up your AAA batteries like the QZ-50's.

 Best headphones ever...so far.
First off, these are extremely well built. I got these headphones for christmas about 3 years ago and they've been used by all my family, and because of that hung from the cord, dropped onto wood and concrete floors, all that countless times. I love the sound of them. Ive used them for DJing, remixing, with my iPod, on my computer, and they're very comfortable and affordable. The bass on these headphones is awesome. Once to remix I used my sister's new Sony MDR-V700DJ's that I thought would be better because they were so much expensive, they actually didn't sound much better. There was no bass, and the speakers were too small. They only covered some of my ear, which I did not like, while these cover my ears-and a little more-to "trap" the sound. i've been using these headphones since I was using Acid XPress almost 3 years ago to now, where I use a mixing board, turntables, Acid Pro, FLStudio 4, you get the idea.

 Best sound and comfort for the money. Period.
I wear headphones off and on for about 8 to 10 hours a day. My trusty 6 year old Koss TD-61 headphones finally fell one too many times off my desk and broke. I decided that I would finally splurge and get some of those nice ... studio headphones. I began the quest for the perfect set. I went to many places and tried on all sorts of expensive and not so expensive pairs. Like Goldilocks, they were all too tight, too heavy, too small (causing extended wear cauliflower ear.) I gave up, and continued using the TD-61s with spaz tape to hold them together. Until I saw the Koss UR-20s. Definately the most comfortable I have ever worn, and so STURDY! Super light weight, and the improvement in sound over the TD-61 is astonishing! Its like a veneer has been lifted from my cds and my old favorites have new depth and quality! I am happy!

 Breakage bad....
Having suffered through a wide variety of garbagey headphones in my time, I was very pleased with the quality of sound to be found in these. Unfourtunately, my hapiness was short lived, as 3 months following my purchase, the plastic housing for the swiveling earpiece just snapped off...Never one to be discouraged, I repaired it with a small metal rod bent as a "splint" for the broken piece, and attached to the housing with electrical tape...much to my chagrin, the otherside broke 2 weeks later...in exactly the same way! well, I did the same ghetto style fix for the other side that I had for the first, and theyre still usable, although barely presentable... this is not a reliable product is the long and the short of it....

 Breaks Very Easily
As I was putting it on my head one day it just broke. There's just no excuse for that. I would not recommend them, but if you're going to buy them use them very, very carefully! The sounds is a little too deep and murky, too.