Balanced outputs for DACs are intended to be connected to (pre)amps and active speakers.
Best not use the headphone outs as inputs for active speakers but in your case you would need to as that is the only output available.
As the DAC isn't loaded with a headphone it will basically be as good as a line-out in signal quality.
You will need a 4.4mm to 2x XLR cable.
Best to use balanced for monitors as that reduces chances of hum (ground loops).
alternatives: Kali LP6 2nd wave and Adam T5V