Fpm rear panel connections and settings, Fpm-b and fpm-x, Fpm-d and fpm-u – Staub Electronics AA-SF-16M AUDIO AUTHORITY - 16 CHANNEL MATRIX AMPLIFIER WITH FLEXPORT INPUTS User Manual
Page 21: For audio settings when daisy chaining), Fpm-b and fpm-x fpm-d and fpm-u, Figure a-1