I am using HTC One and Sennheiser ie80 now. I am looking for a dap/dac+amp which I can use connected to my laptop and carry it outside. Should I get a Fiio E18/iBasso D42 which can be connected to my phone and laptop or a Fiio x3 which can be used as a usb dac? My budget is around US$250.
Thanks a lot.