BACK TO WORK! - The Eeriest Underground

[Hardarm]

Yes. I was thinking of a very little wood box at the joint between the wall and the phonograph. A sound in a big facility can't enter on a 1 cm pipe.

I mean. That's ok. Just apply a box on the most little part of the speaker. Just a little box , so i can apply it on the wall easily

EDIT: oh, make 3 versions. One big, One medium and one small, so i can put them on rooms by the different cases.