Summary: For closed back headphones the AKG K551 is surprisingly open and airy. The precision and clarity on the K551 is through the roof. The AKG K551 sticks to its reference monitoring legacy to the tee. However, if you want your 20 to 150 KHz space bumped up, these are not the cans for you.
Pros: Surprisingly open and airy for closed back cans, Great clarity, Eye catching design
Cons: Big and chunky- not really portable, Folds flat, but not further
Summary: I'm a newbie to hi-fi headphones, but I'll do what I can.
The bass is fantastic, and I point this out because so many people complain about the lack of bass. It isn't this thumping and muddy sound, but very clear with an entire range to it. For bass-heads this might not be what you want.
Summary: Personally, this is my favorite headphone.
I gave this headphone a conservative 4/5 because I simply have not had the chance to try all the headphones in the world, so I'm sure there are some headphones that can hit 5/5.
First of all, these are closed back headphones with a good amount of isolation.
Pros: Very spacious, tight bass with punch, sparkle treble region, easy to drive
Cons: Some people might not like the treble region, the cable seems flimsy