Just got some Alpha Pads for my K550s today!

(sorry for the terrible picture quality)
[COLOR=222222]The K550s are pretty controversial thanks to their seal issues for some. I personally didn't have too much trouble, but the seal was definitely finicky with me having to adjust the headphones frequently to maintain proper seal. I also found the stock pads to be slightly uncomfortable, feeling too flat to me and not giving my ears any space. To combat my issues with a headphones I otherwise very much liked I picked up the Alpha Pads. I can say is this has really changed the headphone for the better overall! I've only had a limited amount of listening time with the new pads but comfort is exponentially improved. My ears, instead of being squished by the original pads, now don't even touch the drivers. Sound-wise they improve the soundstage by a good margin (now comparable to my HD650s) and the bass is much improved. I must have had a sub par seal that I didn't fully realize with the stock pads because now the bass hits hard and digs nice and deep (a good bit more sub bass than my HD650s). Overall I would highly recommend to any K550/K551 owners![/COLOR]