Maximum Output Volume Limiter

The configurable Maximum Output Volume Limiter allows integrators to define a fixed upper limit for the device’s loudspeaker output.

This limit cannot be exceeded by end users, ensuring controlled and safe sound pressure levels in environments with strict audio requirements (e.g., universities, training labs, supervised classrooms).

Installer notes:
  • Select the appropriate maximum output limit based on room size, acoustic design, and institutional requirements.
  • Test the limit with real content to ensure compliance with local SPL guidelines.
  • Document the chosen limit in the room’s AV configuration notes.

Purpose

Educational institutions and high-safety environments require predictable, capped audio output levels. This feature ensures:
  • A fixed maximum volume level (e.g., 50% or 75%)
  • Prevention of accidental or deliberate over-volume situations
  • Full control by the AV integrator, not the end user
  • Safe audio operation in “super lab” or multi-student environments

Functional Behavior

The integrator sets a maximum output volume threshold in Sennheiser Control Software (e.g., 50%, 75%).

The TC Bar’s volume cannot exceed this limit, regardless of:
  • Device hardware buttons
  • UC platform volume (Teams, Zoom, etc.)
  • Remote control
  • API commands

The limiter applies to the internal loudspeakers and, if active, the External Dante Speaker Output feature.

Volume below the limit remains fully adjustable.

How to Use in Sennheiser Control Software

With the Maximum Output Volume Limit control in Sennheiser Control Software, you can define a fixed upper volume threshold for the TC Bar.

  • The value you select becomes the enforced maximum output level and cannot be exceeded by end users.
  • If external Dante speakers are active, the limiter affects the TC Bar’s output gain, not the internal level of the Dante loudspeaker.

Behavior With Other Features

  • Works in combination with all existing volume control paths.
  • Works with ExternalSpeakerOut and ensures that volume is controlled on the TC Bar side.
  • Does not modify AEC reference behavior.
  • Does not replace other safety measures such as DSP-level limiters (external).