. The PPB10 is a 10 channel audio splitter for press conferences and other applications. On a transformer split basis, one line input is split out to ten outputs. All inputs and outputs are balanced transformer isolated Extremely reliable: Should one output be shorted, the other outputs remain unaffected Line input and outputs Adjustable input gain (-8 to +25dB) Level meter Headphone output to monitor the input level, headphone volume adjustable Individual ground lift switches for each output Ground Lift switch for the input Expandable setup thanks to the Bus In/Out sockets - allowing you to cascade numerous PPB10 (or PPB20)