First post on head-fi so I am not even close to knowing anything about headphones.
However, after following this thread for quite a while and spending countless hours reading anything that appeared online about them, I purchased the black K545's two days ago and have thoroughly enjoyed them. I do not like flashy headphones so I really liked the classy style of the k545s. I will not comment on the sound quality other than saying they sounded great since I have no idea how to do so. I did however feel a pressure point at the top of my head while listening to the K545s, but after bending them a little it has faded away. These were the second pair of headphones over $20 I have purchased, the first being the Momemtums. But like it happened with the Momemtums the k545s were too small for my ears. The top and bottom of my ears slightly touch the earpads, making the k545s uncomfortable after a few minutes of listening to them. So I will have to return them and continue my search.
If anyone could help me by suggesting headphones below $350 that are similar in sound to the k545s but for slightly bigger ears, I would be very thankful.