From Studio to Stage
As a Vocal Booth/Isolation Box
To achieve a unit that is fully enclosed, simply put two or four units
together as corners to create a box and then put a lid on it with another
absorber unit or with plexiglass. Four corners together with plexiglass to
extend up to 6' tall or 6'8" tall with an absorber unit on top creates a fully
enclosed vocal booth. A slight lift on the roof panel and any one of four
corners swings out as a door!  Use an absorber in place of plexiglass on
any of the second level plexiglass areas for absorption where you don't
need to see out.  You might only have one corner of plexiglass!