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Talkback Mic Input | Soundcraft Signature Plus Series

Video Manual Series


Written by Felipe Guerrero

Updated at September 22nd, 2026

Learn how to use the Talkback Mic input on the Soundcraft Signature Plus Series of mixers. In this video, we’ll show where to connect a talkback microphone, how to enable phantom power when needed, and how to route the talkback signal to different outputs on the mixer.

The talkback microphone can be used to communicate with performers on stage through aux or monitor mixes, speak to the audience between sets through the main mix, or send announcements to a separate zone. This video will help you understand how to set up and route the Talkback Mic input for live sound, studio, rehearsal, and public address applications.

By the end of the video, you’ll understand how the talkback section works, where the signal can be sent, and how to use it as a practical communication tool during performances, sessions, and events.

 

Transcript
Hello, my name is Tony Smith and welcome back to the Soundcraft Signature Plus Video Manual Series. In this video, we’re going to talk about the talkback mic input. With flexible routing options, you can use the talkback mic to speak to performers on stage, in the booth, or to make announcements to a particular zone. 
These mixers have an XLR input for the talkback mic on the right side of the mixer in the outputs section. This knob adjusts the microphone gain. You also have an LED to monitor the signal. This input will support condenser mics and phantom power is applied using the global phantom power switch.  For the 32 channel mixer, it’s on the second bank of phantom power. 
Once you have signal, you can assign where the talkback mic is sent using the small TB toggles located near your output controls. You can find them for the main mix, the auxes and fx mix, and the headphone and control room outputs. 
When the large TB button above the main mix fader is pressed, the microphone audio will pass to all outputs that have talkback toggles on. 
In the next video, we’ll talk about the USB capabilities of these mixers. Thanks for watching. For more news, product information, and troubleshooting tips, visit our Anytime Help Center at Help.Harmanpro.com

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