Speaker support for Sphaera

This is the speaker support for my home automation server case named Sphaera.

See more details on http://rpihome.blogspot.com/2015/08/home-automation-server-sphaera.html
Video on https://www.youtube.com/watch?v=n1PBNuEQWgI
Get all parts on https://www.redpah.com/product/1856/sphaera