Trying to setup simple office system utilizing my Macbook pro, iTunes, pure music and a pair of Dynaudio MC 15 powered speakers. Tried using Hrt music streamer dac without luck. Pure music allowed me to control the volume of iTunes, but I could not control volume on system generated sounds such as the "you've got mail" message from aol. This would play at full volume as the hrt music streamer automatically sets output at full volume and you can't override.
Any suggestions on how to make this work or what dac would work in this configuration. Please note that my speakers do not have a volume control
Thanks!