Single-Source Systems

A single source audio system has one common receiver amplifier which is connected to the multi-room audio system.  Different input sources can be selected at the amplifier, but all the zones hear the selected input.  Several manufacturers offer multi-room receiver amplifiers which allow dual sourcing specified zones or levels.  The CD player could be the source for the upstairs zones while the FM receiver sources the other basement zones.  Single source multi-room audio systems are common because the listening habits for casual and entertaining prefer common music throughout.