I just installed the Hifiberry Dac +- pro on to my Pi3, I noticed I have a 2 pin header on the board at P3, all the videos and pics I see online don't have this, I'm assuming this is recently added to the DAC? Is this for separate power supply connectivity? And if so do I still need to De-solder the resistor to accomplish this?
One more question, can anyone recommend a HAT or add on that will allow S-jack style headphones to be used and still get the sound throughput from the Dac?
Any help is greatly appreciated, thank you