I just hooked up my old trusty NuForce HAP-100 preamp to my DAC10, so I can use the HAP 100 as a headphone amp.
I first tried holding the + and - volume buttons down simultaneously. The volume reading went to "00." = No sound.
I set the DAC 10's volume at 93, which I believe places the DAC10 output to 2 volts. What did I get? Music!
Is there anything else I may need to know about?