The Snake River Boomslang is quite warm. Personally, I recommends something more neutral in this position, and if yer after a level of warmth, do it father down the chain. This is just a personal system building approach for me; might as well get all the info from source to the DAC, then think about ‘tuning’.
Try a Black Cat Digit-110 aes/ebu cable.
Digital AES/EBU XLR Cable Recommendations
Going from a Jays audio Transport to a Bryston Bda-3 Lower end