The choice between the FX Audio DAC-X6 and the SMSL 793II

Hi, i’m standing before a purchase of a Dac / Amp and those two are in my budget and have peaked my interest. The main difference between the two is the USB out on the FX audio. The reason i have a difficult time deciding is i’m going to use optical in both cases. My only concern is, how do they compare when it comes to build quality, and how do they affect the sound?

The smsl is a bit more dac focused whereas the fx audio is more amp focused imo. What headphones are you planning to use?

Either Fidelio X2HR’s or HD58X’s

Hmmmm, I might be inclined to say the fx audio since it will give more punch to the x2