MWX45B BLACK WALL PANEL CONTROLLER FOR MTX SERIES MATRIX 45 X 45 AUDAC MWX45/B BLACKMWX45B Black MTX wall panel controller 45 x 45 mm The MWX43 45 are wall panel controllers to be used in combination with the AUDAC MTX series multi zone audio matrix systems and the AUDAC AMP523 & RM523. It provides the possibility to select the desired audio source and control the volume for one zone. The 7 segment LED display indicates the current selected audio source (1 8) or volume. The connection between the wall panel and the matrix system is