The Anti-Mode sits in between the Bluesound Node and the DAC, so it is all digital connected via Toslink. I have actually used it as a DAC too in the past, its not bad, but the Abrahamsen is a little better.
The canvases on the wall are actually acoustic panels. I had the canvases printed professionally using a process called dye sublimation (I think!) and then packed the inside with acoustic absorbing material.
Sofas could be an issue... I might have to think about covering them for serious listening sessions! Thanks for the tip.