Voice reinforcement system

The larger lecture theatres have public address or voice reinforcement systems. There are two different types of microphones-desk (or bench) microphones on a lectern and radio microphones. Desk (or bench) microphones are beneficial for users who tend to be static and remain at the lectern when lecturing, while radio (or wireless) microphones work via radio technology, have no cables and enable the user to roam freely while delivering their lecture.

Please note, microphones need to be used for DLD recordings.

There will be a microphone on the lectern and often a radio microphone as well. The volume control is located on the control panel.

Touch panel volume control

  • The Volume control is located on the touch panel. The volume can be adjusted by pushing the Volume Up /Down arrow. There is also a mute button.

Push button panel volume control

  • The Volume is adjusted by rotating the volume knob.

Radio microphones

Most large theatres have a radio microphone. The radio microphone must be turned on. Low battery indicator will flash when batteries are low.

Replacing batteries

  • Open the battery compartment
  • Install new batteries (located in the lectern draw)


Training on equipment in rooms can be arranged at any time.

For assistance

Assistance is available by calling 54321 option 1, 1 and ask for AV assistance.