I'm using the Grace SDAC Balanced, the one that is popular to pair with the AMP, I have Beyerdynamic DT 1990 Pro's which arent balanced but I have XLR running through the DAC to the AMP, The keyboard in question is a 2017 Korg, VOX Continental and it has XLR L and R, however I think I would need the opposite of a DAC, like an Analog to Digital converter. I used to Play my keyboard into my PC and play Spotify and Tidal with my keyboard which...