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Fiio E11 makes Klipsch Image X10 sounds bad, not clear any more. I bought E11 because my Clip zip can't supply enough power for x10. X10 is a mess with E11 on my mp3 player or my pc. But the other earphones sound nice with it. It's pretty strange, got any idea for that?
Even with 50ohm impedance, Clip Zip should still be able to drive X10 properly as it has a pretty high sensitivity. As for E11 + E10, I think it is synergy issue.