My new setup is going to be:
X-fi Titanium HD -> Fiio E09k + E17 combo -> MTH50 / M-100
I'm totally new to audio configuration and have always made do with onboard sound in the past. I'm a little confused about the best way to link my PC sound card to the E09k. I've done a bit of research and have confirmed my options as being:
1) Titanium HD RCA to E09k RCA
2) Titanium HD SPDIF out to E17 Optical in
3) PC USB to E09k USB
4) Titanium HD 3.5mm out to E09k AUX in
Option 4 makes the least sense to me and I've tried option 3 without much luck. Options 1 and 2 work, but I'm concerned that I might settle for a sub-optimal setup without realising it and then I won't get the maximum benefit from my investment. I understand that my sound card has better DAC performance than the E17 which I use mostly for its portable functionality, so my aim is to use the E09k solely as an amp.
I'd really appreciate it if anyone with the know-how would point me in the right direction. Thanks and apologies if this has been answered before.