I bought an SRH440 yesterday after trying about 10 cans in a local SamAsh. Wow, great sound and very flat but with actual HF extension unlike the 280 but nowhere near as trebly and shrill as the K240, and it doesn't have any mid-bass suck-out like the 280 either. I think I'm going to be sending my K240 back to Amazon now. I wanted to like it but in reality the soundstage isn't much better than really good closed headphones upon second listen...I am disappointed. I'm sure the K701 holds its weight better.
I tried the M50s against the SRH and it was much worse. Sharpened upper mids, bloated mid bass, and scooped mids. Awful from a neturalist standpoint.
Edited by metal571 - 4/7/14 at 10:46am