Hi there,
I'm planning to use a tiny dongle which takes USB-PD in, negotiates 12V, and provides 12V on a barrel plug, to power my Spitz from a USB-PD power supply which provides the (optional, per the spec!) 12V voltage.
One little wrinkle: since 12V is an optional voltage for USB-PD power supplies, if it is not available, the dongle instead negotiates 9V and passes that to the barrel plug.
Can anyone confirm that the Spitz will not be harmed by having 9V fed to it, in the event this setup is plugged into a USB-PD supply which does not offer 12V?
Edit: Related: X750 Spitz USB Power Cable