I have to say, i own a pair of the se 530's and i wear them all day, everyday. I operate a saw in a granite shop, so the noise is incredible loud, i throw on the 530's, and all the noise just disappears into an astonishing silence. Thats what -30db get you! lol as for their comfort, i have very small canals, so after a little experimenting i found that the small foamies were a perfect fit, and created a perfect seal.
love, live, and keep them in a protected case.....
the 530's. lol