Return to: Multiroom Audio Deep Dive Reveals Drop in Number of Zones, Prices Previous Slide Next Slide Obviously, the number of manhours for an installation depends on the size of the job. The average-size multiroom audio project has five zones and takes 20 hours, 30 minutes to install. That equates to 4 hours, 6 minutes per zone. Return To: Multiroom Audio Deep Dive Reveals Drop in Number of Zones, Prices