That's promising! Do you use the DAC as a preamp as well? If so, does the device remember the volume setting when rebooted or if the device is unplugged from the power point (hard reset) or does it then revert back to 100% volume output?
Yes, it retains the global volume setting when powered down. I have mine connected through a WiFi a/c plug where I operate the whole system with my phone. It does not retain volume settings between the inputs however.
I have used it as a preamp.