Streamer with variable digital output

My research tells me Allanblissett is correct. The streamers I investigated appear to have fixed level digital outputs. I don’t know if other responders know otherwise or didn’t read my post carefully. It's an unusual circumstance. 

Seeking clarity has made me more confused than ever. 🙂

The Node connects to the GaN1 through the coax digital output. The volume control is in the digital realm. Not sure about other streamers. The GaN1 has no analog inputs and only speakers out.

Maybe the Bluesound is the only one . That's why it is featured  with the GaN1 on the Peachtree site.

I’m curious.  The digital volume control on the Node is likely crap and drops bits when using its analog outs, but if you’re using it strictly in the digital domain going direct into something like the Gan1 does this become a non issue?  If so this seems like it could be a really elegant and effective solution for a budget/compact system. 

I’m quite confused. The BS Node does indeed have a physical volume slider in digital domain that you can tap to adjust. Additionally, you can use the volume buttons on any iOS device (AirPlay mode only) or Android device to control the volume of the selected player when the BluOS Controller App is running in the background.