This piece is a excellent thing to have no matter what. It converts USB To SPDIF, AES and i2s. It reclocks and isolates the signal, so your DAC receives a pristine signal. It goes inline between server and DAC. It's also configurable for differtent i2s and will pass DSD1024 and PCM 768.
If your server does not output i2s, this is highly recommended if you are buying a Denafrips DAC .