Yes that's the set-up and exactly how mine works. iPhone>cck3>topping d10>toslink>dsp.3. If you don't have a digital volume control you will have to use the iPhone's. Let me add this caveat though... I have apple music and amazon hd and only apple music will connect this way. Amazon hd will only play if the camera is open. Don't ask me why. You will connect via AirPlay so you have to select it or no output.