Olof Backing posted a comment on discussion Jamulus Server

From the source code (global.h): // maximum number of connected clients at the server (must not be larger than 256) #define MAX_NUM_CHANNELS 150 // max number channels for server And this is what you get when trying "to hard": obg001@mbp src % /Applications/JamulusServer.app/Contents/MacOS/JamulusServer -u 151 /Applications/JamulusServer.app/Contents/MacOS/JamulusServer: '--numchannels' needs a numeric argument between 1 and 150