Not sure how well it will compare but I consider E7 to be fairly cold and analytical amp.
Cowon S9 (aggressive and analytical) + Fiio E7 (cold and analytical) + Sennheiser HD25 (forward and analytical) = Ice Cold SQ
Say, have you tried the DAC section of the E7? I'm wondering if I could buy this instead of the NuForce uDAC that I desperately need for my M-Audio speakers. Care to hook them up using your PC and headphones/speakers? Thanks.