I have two options to buy:
1. Musical Fidelity X-DACv3 ~$650
2. April Music Stello DA100 ~$700 (w/ USB in)

I use:
Source - FLAC/WAVPACK -> foobar2k playback (Kernel Streaming)
Transport - VIA EPIA SP8000E (fanless) with int. Vinyl Audio AC97 sound card, S/PDIF out
Amplifier - NAD C 352 integrated amplifier
Loudspeakers - Dynaudio Audience 42

Which DAC would you recommend?
Thank you.