Hi. I`m torn between these 2 dac/amps. I don`t really have anywhere to test them (from the local shops in my country if you buy you don`t have return option). I had a little bit of an issue with the treble of the Edition XS using the Oratory EQ, but i managed to tame it. Currently I am using the ifi zen air dac v1 and I want to upgrade and get more power. From what I`ve read the Fiio K11 R2R is a bit warmer DAC/AMP which should mean it has a little bit of bass(punch) to it, while the Fiio K7 is brighter which means it has treble that might be a of an issue. Has anyone had expirience with these specific combinations? I would like to add a little bit of punch (bass) to the Edition XS that doesn`t make the songs sound muddy( like my zen dac xbass option). Can anyone give me his thoughts on this matter?