Originally Posted by Lil' Knight
I asked Jason about this and he told me to set the volume to max when used as a line out.
Thats exactly what I thought. A passive volume control is at zero gain at full volume. Its just like a volume attenuator (like you get with many headphones on their cables), not an active preamp volume control.
Maybe Larry didn't set his to full volume so that he could get matching outputs with other dacs he was comparing with like the pico. After all, at full volume the udac will sound louder than most other usb powered dacs because of its 2 volt output.