Does the Aero DAC have balanced outputs?

Yes, in addition to the single-ended (RCA) outputs, the Aero DAC has differential balanced (XLR) outputs.

The ZOTL output section operates differentially, cancelling out common-mode noise. The analog section begins with a discrete current mirror with a differential output. The signal from the I/V feeds the four single-ended amplification stages that make up the differential ZOTL output stage.