Summary: I have had these for probably 10 years and rocked them HARD the whole time. Finally after years of abuse a driver blew out and started crackling with heavy bass. I followed the warranty procedure and in less than two weeks I am again listening to a great set of the finest 'phones available. I have had many 'phones that cost many times more than these do...... none of them compare to the sound and durability of the KSC 35's.
Summary: I purchased this earphone in 1997 in USA, then return to France where I use it for 16 years now with a great satisfaction for its quality sound!! It still works very good so far, even if I already changed cushions. But believe me or not, but that pair of earphones went to my washing machine one time, (it was in a shirt pocket) for a complete cycle, with hot water, detergent, spinning cycle, etc...! Result it still works as at the first time!! AMAZING!
Summary: I have always been a huge fan of Koss for value and warranty. They have the best quality and reasonably priced headphones in the industry. I had lost my Porta Pros and was looking for a replacement, so I picked up a pair of these. I noticed a big improvement in clarity and the comfort of not having a headband squeezing my head for hours at a time. The range on these for the price really is impressive!
Summary: After reading raving reviews in head-fi.org, I purchased this phone 3 or 4 years ago. Sonically, this phone offers superior quality when compared to others in the range of $50 to $60. I do own Porta Pro and KSC75 but KSC35 tops all of them despite some cons.
Pros: Amazing Sound Quality, Light weight
Cons: Not best fit for my ears, Not so good build quality
Summary: I've had these for almost 10 years and they still sound fantastic. When I first got them they felt a little strange on my ears, but I have long since gotten used to them and they are comfortable for long periods of time. They are very lightweight and due to the clip design, don't mess up your hair like over-head designs. They also don't get in the way like behind-head designs do when wearing a collared shirt. The bass on these is absolutely incredible.
Summary: People might think my ratings are a little low for these great little cans, but I tried to rate them without concern for how ridiculously cheap they are (I bought three pair for $30 total!). Anyway, I'll just explain my ratings. Bass extension 3-Below Below Average. I swept them with Audacity and found they pretty much die off below 40, and worse, both pairs that I still own rattled when I swept them down to below 40Hz at a moderate volume. Bass Impact 4-Below average.
Summary: These little guys are well-known among headphone junkies as one of the best buys around, provided you don't need any isolation. The sound is much better than one would expect from their size and price: well-balanced across the spectrum, good bass punch without being too loose or boomy, an engaging midrange, and highs that aren't too sharp or harsh. That said, there is much better sound to be had, but it'll cost ya.
Summary: I first have to admit that I am an unshakeable fanatic of Koss KSC-35’s. I have seen more people converted to quality audio products from these phones that from any other. They are my “Gold Standard” of value and performance at their price level and ideal for people looking for headphones to replace the stock phones that come with portable music players.
Summary: Paid $52 CAD (incl. shipping) at koss.com.
Looking to buy the PortaPro but are willing to pay extra for something special? The KSC35 not only has the PortaPro drivers, but trumps them in virtually every way. It's lighter, the bass is less overpowering because the pads don't clamp down on your ears, and it actually fits in its carrying bag quickly, whereas the PortaPro needs a bit of shoving in.
Pros: Superior to the PortaPro, weighs under 30g!
Cons: Fragile, can only be purchased at koss.com at a premium, poor warranty
Summary: Excellent opened overheads for everyday use with the typical sound brilliance of Porta Pros with a little less of bass overboost (which is positive) due to being not that pushed on the ears.
There are few things in the world that need no improving. KSC-35 almost fit in there - if only the wire ends in the phones were attached a better way so I wouldn't have to get them fixed every approx 3 years.
Pros: the very good porta-pro amps, ear-clip system, simple and very functional design
Cons: typical repairs every 3 years: wire contact gone