Yes, you read the title correctly. I searched for a HD 280 appreciate thread about 4 years ago and I'm really sad that one still has never been created. I'm fixing that.
I have a pair of HD-280s. I've had them for about 5 years and have logged hundreds and hundreds of hours listening to them. I think they are fantastic. The sound isolation is great for listening in noisy environments, or for concentrating on details without getting distracted by room noise, computer fans, appliance noise, roommate's watching TV, etc. I don't have a dedicated listening room, but with the HD 280's, I can be just about anywhere and hear the quite details in the music while still listening at comfortable, moderate volume levels.
They are sensitive enough that they don't need an amp--I drive them easily from phones, tablets, computers, AV receivers, etc.. Did I mention the isolation? The sensitivity plus the isolation means that you hear EVERYTHING, especially if you have a noisy headphone output! I bought a Modi+Magni because the noisy headphone output of my laptop was driving me crazy. You will appreciate a quality headphone amplifier and DAC with these phones, because you'll know if your equipment is noisy or dead silent (Mine is dead silent).
They seal great on my head, and I don't mind wearing them all day long (and all night!). I work with wind tunnels that can be quite loud, and I will use the HD 280s with or without music to block out the noise.
I like their frequency response. I like the tightness of the bass (compared to AKG 240s, which sound bloated and boomy across the mid and upper bass) and the low end extension. The mids and highs seem pretty accurate to me, and the highs extend higher than I can hear.
When I bought them, they were light years a head in fidelity compared to anything I had heard prior --- all low-level Sony, Koss, etc.---junky stuff you might find from Walmart or Best Buy---or the consumer AV receivers and bookshelf speaker systems I've had. The HD 280s are responsible for getting me into Hi Fi and Head-Fi. Before them, I didn't know the difference between 128kbit/s mp3 and CD.
I've replaced the ear pads on them once in 5 years. I will continue to keep them in good shape. They're like a trusty old friend---always good company.
Am I the only one here who thinks these are some nifty little <$100 headphones?
Edited by ab initio - 5/7/14 at 8:19pm