I have my TV (Samsung UN40J5200AF) wall mounted. I wanted to have the soundbar (Samsung HW-M360) mounted under it in order to sound better when the TV gets pulled out and turned to the sides.
This probably won't be of any use for anyone else unless you have the exact same model of TV + soundbar as me, but hopefully this will give you some inspiration if you want something similar. I included the Sketchup files if you want to work off them, but it is a pretty simple model that I've taken 6 iterations to get centered/level/etc. The 2 models are not symmetrical.
The mounts go directly into the same screw holes used by the TV's stand. The soundbar uses its provided wall mounts.
Printer:
Monoprice Make Select
Rafts:
No
Supports:
No
Resolution:
0.2mm
Infill:
30%
Designed in Sketchup
Category: Organization