CT16S (discontinued)

Amplifier Switcher

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The CT16S amplifier switcher gives users of public address systems confidence that their system is operational. Each amplifier switcher has 16 primary amplifier inputs (which connect to the amplifier outputs), 16 backup amplifier inputs (which connects to the amplifier outputs), and 16 outputs. The CT16S is capable of handling 2 Amps Continuous for up to 1000W per channel. 

In the event that a failed channel is detected, the unit can switch the failed channel to an idle backup channel. Once the primary amplifier channel is back online, the unit will switch the backup channel back to the primary channel. All errors and switch operations will be reported to the management software. The CT16S hardware supports backup ratios ranging from 16:1 to 1:1; the exact ratio available is determined by the control system being used.

A series of programmable GPIO’s can be used to connect the CT16S to external control devices. A total of 16 control inputs and 5 control outputs are built into the CT16S to provide enough control inputs for emergency use (for connection to local fire alarm contacts). In addition to the GPIO, an Ethernet connector is provided for additional configuration and control.


  • Monitor up to 16 amplifier channels in real time for speaker outages and channel/amplifier failures

  • 16 primary amplifier inputs, 16 backup amplifier inputs and 16 outputs

  • Utilize any primary to backup amplifier ratio from 16:1 to 1:1

  • 16 control inputs and 5 control outputs

  • Automatic power amplifier switching when a primary channel fails

  • Automatic power amplifier switch back when a failed primary channel is back online

  • Two status indicators for each channel: primary amplifier status indicator and backup amplifier status indicator

  • Error and switch operation reported to management software

  • Universal power supply


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file type icon CT16S Cut Sheet
updated: Nov 2023
    809 KB Nov 2023

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AC Line Voltage 100 - 240 VAC @ 50Hz or 60Hz
Dimensions 19" x 10" x 3.5" (482 mm x 256 mm x 88 mm)
Net Weight 10 lbs (4.5 kg)


HARMAN Professional Solutions:

CT16S (discontinued)

Amplifier Switcher