Desk-PC 2.0 Update: Wall-mounted subwoofer

I am currently updating my room. As a result I moved quite some furniture around in order to have the Desk-PC presented nicely. While moving all the things around in my room I realized: “Oh dear, I have this subwoofer of my sound system. How can I integrate that into the setup …?”

So I got back to the drawing board (which in this case is Fusion360 CAD) and designed some brackets which can be used to mount the subwoofer on the wall: