Rating: 
Summary: Great for Stereo TV/DVD watching
Review: I've had mine for three years now, and I find the UR20s indispensible, since I live in an apartment and can't turn the TV up to a decent level otherwise. There's reasonable bass; you would expect so for the size of them. Always look at the specs. The low number is the bass, the high number (usually in the tens of thousands) is the treble. This set's bass is 30 Hertz. That's That's not a bad number; 20 is average, 12 would be phenomenal. The treble is set at 20,000 Hertz. Theoretically, only dogs can hear frequencies above that, but I think a headphone with a figure over that just seems to sound brighter in the treble, which is what I like. I hate unclear treble and muddy, distorted bass. Another number you look at is sensitivity; the better ones are always over 100. So, I guess based on the specs, these 'phones are about average.The cord length is excellent at 8 feet. I can be a reasonable distance away from the TV without straining the cord; I've even slept with them on without ear fatigue. These headphones make movie watching a whole new experience...you get surround sound without the expense! I've had a great experience with the UR20s and I recommend them for use with home theater, even if you just have a 20" portable like mine. You need an adapter to plug them into a home stereo, and there's plenty of cord where you can be either reasonably mobile or you can sit in your favorite chair some distance away. I think they're great. The only thing that would make them the best is better specs, and that's hard to find at this price range.
--This text refers to
the UR-20 option.
Rating: 
Summary: Koss UR20 - Best sound for the price
Review: I've used these headphones for a few months now, with the main use for my home computer. The bass range is very reasonably low, shaking my head at times (in my view that is good). In contrast, the treble is fairly high without hurting my ears. They are very sturdy, I've tripped on the cable innumerable times and have not broken them yet. This is not a recommendation to swing them from the cable though! One of the problems is (mentioned before by reviewers and I do stress it is true) the headphones getting hot and sweaty inside. I also found discomfort from too much stress on my ears. My recommendation is that you find a way for UR20s to stop them resting on the top of your ears. All in all, for the price, and the quality of the sound (which is very rich and bassy), the Koss UR20's are a best buy from Amazon.
Rating:
Summary: Good Headphones
Review: One of the main things that I look for in headphones is comfort. So, when I passed these headphones in these stores I really wanted to get them, so I did. For people that have never experienced headphones of this size, you'll be a little surprised, I was too. They actually made my other pair of headphones feel small and uncomfortable, so they suceeded where I thought they would. ... When I first tried these headphones out I was really disappointed, the sound wasn't very good, hardly any bass, and the overall quality was bad. But after a while, for some reason (I guess you have to break them in), it was working very well. Clear sound, good bass, and good overall quality. These headphones work exceptionally well with equalizers, like on Winamp and most stero systems. The sound is only a little less that what I thought it would be, but if you have an equalizer, you can easily make these headphones a 5 on your list. I think that the headphones were also built well, unlike what some others have said. Also, about the heat issue, it doesn't get kinda hot and sweaty after a while, but you should be able to deal with that easily, especially if you live in a cold house like mine. :\
--This text refers to
the UR-20 option.
Rating:
Summary: Not very durable
Review: Sound quality is good, very little isolation though. Very comfortable to wear. Construction is very poor though. Broke ear cups easily. Would not buy again due to poor construction.
Rating:
Summary: Great for the price range.
Review: Terrific sound for headphones at this price, deep bass, good mid-range. I use these at home on the computer for MP3s & DVDs and they are great for both with almost zero external distractions. Only downside is the flimsy plastic construction -if you are going to use these outside make sure they are securely attached, if they fall you'll be spending a lot of time with the Scotch tape.
--This text refers to
the R-10 option.
Rating: 
Summary: Not for the long haul
Review: The Koss R-80 headphones have great sound and eliminate most external noise.
They're also reasonably comfortable. But if you're looking for headphones that
will last a long time, keep looking. The earpieces attach to the headband with
plastic connectors that weaken and snap after a relatively brief time period,
leaving the earpiece dangling by a thin wire. My set broke under warranty,
and were replaced without a hassle, but the new ones died the same death.
Really a shame.
Rating: 
Summary: Great Quality and Features for Price
Review: The Koss R/80 is a great set of mid-priced headphones that will appeal to someone who doesn't want junk, but who doesn't want to spend $100 or more on headphones. They cover the whole ear, are comfortable to wear, and have great sound. The connection jack is gold-plated and thus you get little if no background interference noise.
Another special feature is that it has a coiled cord that actually connects to the headset like a telephone jack. In the past with the other headphones I have had, the cord would break away from the connection inside the headset, and I would have to throw them out, but by having this phone jack type connection it is more durable and allows the cord to be replaced instead of the whole headphones if needed.
This set of headphones is just what I was looking for - good quality, good brand, good price.
Rating:
Summary: Decent sound, flimsy construction
Review: The plastic track on which the earpieces ride broke within a month of my purchase. The sound quality is decent for the price, but the construction could really use some work. Koss offered to replace it under the warranty without giving me any trouble, but it's not worth paying the shipping charges both ways plus the $7 warranty repair fee.
--This text refers to
the UR-20 option.
Rating:
Summary: ... Headphones
Review: 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.
--This text refers to
the R-10 option.
Rating:
Summary: Good for the price
Review: These headphones are extremely comfortable and look pretty good (the look more than the price you pay) but sound quality is only so-so. They don't do a very good job of blocking external noises, and music coming through doesn't seem to sound any better than a ... set of earphones I have. However, they do the job well enough and are comfortable (which is important to me), so I would say they're worth the relatively low price.
--This text refers to
the UR-20 option.
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