Good day Gents, I've been looking at the Fiio e17k Alpen and it seems quite interesting to me. It is a heapdphone amp with dac, usb input, line in, coax in. So it seems quite versatile. What I need to know is if the headphone out can be used as a preout. Also if there are any similar devices to the e17 that might be a better option. I will use all the functionality ie: as a headphone amp, as a dac (coax from cd player) and as a pre amp source for a power amp.