The bass distorting and bleeding into the mids just doesn't sound right. How is it compared to plugged straight into the Classic? The Cmoy''s circuitry might not react too well to the unusually low load of the XBA?
I have a European Sony Walkman Z which has an apparently high Z of 27 Ohms and while the sound is different compared to the E11, the effect is subtle and sound very good, just different. The bass isn't affected much but the Z provide slightly more treble presence and the soundstage is more spacious. The E11 is a tad cleaner overall. I really enjoy both to be honest.
Edited by zenpunk - 3/5/13 at 10:31am