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Article ID: 000024365
Last Modified Date: 05/15/2021
Access Level: Public

M10/M12/M22: How to Adjust the Volume

How do I adjust the volume on the M10/M12/M22 amplifiers?
The M10, M12, and M22 amplifiers enable you to adjust the incoming ("listening") and outgoing ("speaking") volume. To adjust your listening volume: Use the thumb wheel on the top of the base. Image of how to adjust your listening volume To adjust your speaking volume:

Image of how to adjust the speaking volume
  1. Remove the cover from the amplifier.
  2. Remove the plastic screwdriver from the bottom of the amplifier.
  3. Use the screwdriver to turn the volume dial to increase or decrease the volume.