Listen room Insulation only


Wondering if I setup an audio system in the garage without putting wall board over the wall insulation,What would this do?
128x128hiend2
Be the same as any other exterior wall. Interior walls are sheetrock screwed to studs. Exterior walls are the same only with insulation between the studs. A garage being unheated space is treated as exterior, hence the insulation. 
It will definitely reduce the sound reflections you’d get if the walls were sheetrocked. It might result in a 'deader' space.