Inter-M PMU-240 - Manual (Page 7)

MIXING AMPLIFIER
5 PMU-60/120/240
9. ATTENUATOR
Built-in ATTENUATOR over zone 5, It allows to decrease the output volume independently from master
volume.
10. ZONE SELECTION SWITCH
Use the zone selection switches to route the program audio from the amplifier output to speaker zone 1
through zone 5. The All button controls turns ON/OFF all zones. The Indicators lights on when zone
selection switches indicates if the zone is on.
11. OUTPUT LEVEL DISPLAY
Displays the output level meter, each bar is marked in intervals of 3 to 5dB.
Mode 100V Output 70V Output
Switch mode 1 100V 70V
Switch mode 2 70V 49V
Switch mode 3 50V 35V