I'm wondering if there's a big difference between these two sets. I'm >< this close to ordering 595s, but will probably hold back in waiting of reviews. Yes, I know head-fi.org exists - I consider many of their members to be pretentious and petty however. I'm looking for people who have extensive experience with both sets and no bias or trendy opinions. The 280s are 64ohm, 595s 32ohm, iirc, so amplification probably shouldn't figure into it ... ?