Summary: These were my first pair of cans and since no one else has yet to submit a review for them I thought I would go ahead and write one.
These were made primarily for studio use and the have a very classic look to them. Nothing fancy.
Summary: I've owned two pairs of these over the last 10 years (one channel on the first pair died) and I've used them without an amp or any knowledge of audio electronics. Essentially, they were the first pair of decent headphones I've experienced prior to entering the world of HiFi only recently.
Pros: Deep bass; Good isolation; Affordable
Cons: Overly-tight clamp (uncomfortable); Only comes in coiled cable; Recessed mids and slightly harsh treble; Small soundstage
Summary: My comprehensive review of the Sennheiser HD 280 Headphones
BURN-IN TIME - Took about 3-4 days to burn in so maybe 12 or so hours for me
Upon receiving these as a gift for my birthday (so I paid nothing for it). But as of December 2014 it's usually around $100 US - $125 US as far as I know.
Pros: Great sound, Clear Highs, not too overpowering bass, mids are clear and not too colourful
Cons: little to no soundstage, doesn't preform well on lower volumes, leaks sound (not too much though), Highs just disappear or is blurred sometimes
Summary: I don't actually know the model year, but these phones have been around for about 10 years according to HeadRoom. I got mine about 3 years ago or so. I picked them out based on the data at HeadRoom, since there are not many good headphones sold locally.
Summary: I've owned these cans over 2 years and I've watched them mature like fine wine sitting in the barrel. When I first bought them I was surprisingly disappointed. I was expecting a lot more but found their sound to be tinny and weak.
Pros: Great sound isolation, deep head vibrating BASS, nice treble, mids are slightly recessed but sound OK, great price to performance ratio
Cons: lacks much of a soundstage, can get somewhat uncomfortable after a few hours
Summary: The first of these that I have are going on 5 years old, I am also listening to them while I type this review. I am basing my opinion on this pair. I received a NIB pair about a month ago but have not listened to them yet. I really like everything about this headphone.
Summary: I always see people recommending the HD280 like it's some amazing price vs. quality gem in the headphone world or something, and when I borrowed a pair to compare to my HD555 a few years ago, I was surprised by how bad the HD280 sounded and how uncomfortable it was.
Summary: First, let me start by saying I am a total noob. These were my first and still are my only pair of real headphones. Now that I look back, I probably should have bought the ATH-M50S considering what people have said about it. These cost somewhere around $120 when I bought them.
Pros: Very flat frequency response, nice isolation, accurate, detailed.
Cons: Can get uncomfortable after a while, not a very exciting sound, lack of decent soundstage.
Summary: I originally got these headphones because I was looking for headphones to use both for late night listening (in an apartment complex with thin walls) and travel. So for me isolation was one of the first things I was looking for, and these headphones deliver that in spades.