Id get the ATH WS99.AKG k550 has flat bass but it's difficult to get a good seal so some people hear recessed bass.
The LP is just a bad headphone. The m80 is much better. LP is just a muddy mess
The COP is a basshead can. Everything else is sub par.
WS99 is dark, meaning the highs are recessed. The lower mids are emphasized and the bass is emphasized. The bass extends deep, is tight, and has perfect impact. Nicely positioned too.
Edited by Trunks159 - 12/14/13 at 6:12pm