AM4120
12-channel 70V/100V amplifier output monitor with LED level indication and a built-in listening speaker.
Amperes · Monitoring & changeover
Monitoring & changeover
Amperes AM4120 amplifier monitor
Amperes LS4816 speaker-line surveillance unit
Check amplifier outputs and speaker circuits, identify faults and plan standby-amplifier changeover. Browse Amperes AM4120, LS4816 and changeover options below.
How it works
Detect faults and plan standby operation.
Amplifier monitoring and speaker-line surveillance check different parts of the PA system. Standby changeover provides a separate path when an amplifier fails.
LS4816
16-channel speaker-line surveillance using impedance measurement to detect open circuits, short circuits and ground leakage.
AX3800 MK II / AC3801
Automatic or manual standby-amplifier changeover options for larger systems.
Planning supervision: Map the amplifier outputs and speaker circuits, decide how faults are reported, and define the standby-amplifier arrangement.
What to confirm.
Map the circuits.
Count amplifier outputs and speaker lines that require monitoring.
Define fault response.
Decide how operators receive alarms and when standby changeover is required.
Check standby connections.
Confirm amplifier ratings, switching interfaces and power requirements.
Related components
Connect the rest of the PA system.
Explore the connected parts below when planning the complete PA system.
Final model compatibility, loads and installation requirements are checked before quotation.
Amplification
Power amplifiers
Define the duty/standby amplifier architecture to be supervised.
Explore category →Distribution
Zone control
Map speaker-line supervision to the actual zone architecture.
Explore category →Power
Power distribution
Coordinate monitoring/changeover equipment with system power.
Explore category →Selecting for a new project
Confirm the final equipment list.
PNSS confirms current models, availability, warranty and required accessories at quotation.
Maintaining an installed system
Review existing equipment.
Share model numbers and system condition to assess repair, reuse or replacement.
Request an equipment assessment →Planning PA monitoring or standby changeover?
Share the amplifier list, speaker circuits and required fault-response sequence.
