I'm considering upgrading my travel in-ears from Sony XBA-c10 to something that's got a bit more detail and more instrument separation. My listening is a lot of classical, opera, jazz and very rarely some pop. I don't consider myself a basshead although I do love my Beyerdynamic DT770 pro 250 ohm. I don't want to spend more than a 100 euros, am not very keen on something really exotic that I cannot try and send back again. I do want replaceable cables. I've got it narrowed down to : Ibasso IT01 Fiio FH1 Pioneer SE-CH9T Any tips, suggestions? Opinions?