Redback A 4930 Operating Manual

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Redback® A 4930 Four Output Mic/Line HubOperating ManualA 4930 Four Output Mic/Line HubA 4931 Mic/Line Preamp WallplateOverviewThe Redback A 4930 Microphone/Line Hub is designed to accept audio from up to four A 4931 Mic/Line Preamp wallplates.The A 4931 wallplate accepts either a microphone or line input and converts the signal to a balanced high level output. Thehigh level output signal is carried via Cat5e cable, (suitable for distribution up to 300m without interference) back to theA 4930 Hub. Mic input is via a balanced XLR whilst the line input is via 2 x RCA sockets or 3.5mm audio jack for portabledevices with a lower level line output.The A 4930 Hub has a dedicated output for each wall plate, with front mounted volume controls for each output. Eachoutput can be DIP switch selected to be fed to a dedicated mixed output. Each output including the mixed output has DIPswitch selectable balanced mic/line, or unbalanced line level outputs which can be fed directly into amplifiers.The Hub is powered by 24V DC from the supplied plugpack and the A 4931 wallplates receive power down the Cat5e cable.User manual revision number: 1.0 11/09/2018A 4931A 4930

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