I've noticed that there are two sets of pins on either side of the Dac+ Zero, one on the right and the left. The one on the right is larger and seems to be connected to the audio out directly, but the smaller 3 pin set is labeled L GND R. I'd assume it was another audio out (like I suspect the other one to be) but it seems to be connected to a small resistor circuit. Does this allow me to connect an audio input as passthrough without damaging speakers with double the voltage? It would be very useful for my project.
What are the solder pins on the Dac+ Zero for?