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Black and white photo of the front of the very ornate Westminster Hall

Project: Central Hall Westminster

Product: ListenIR
Location: London

With such a rich history of speakers and gatherings, it is crucial for Central Hall to use audio equipment that provides visitors and listeners with an excellent auditory experience. This commitment to providing an excellent experience extends to every visitor, including patrons with hearing loss.

Central Hall had an existing infrared assistive listening solution, but it needed to be replaced with modern equipment. In addition, the Central Hall AV team also wanted to increase the seating areas within the Great Hall that would be covered by the service.

Central Hall enlisted the help of Listen Technologies, to demonstrate ListenIR. With RF-like sound, twice the power and coverage, ListenIR transmits clear, focused audio delivered privately to the intended audience. Upon a thorough analysis of the space, it was determined that a single LT-84 Transmitter/Radiator combo and iDSP receivers would be sufficient to cover nearly the entire room (capacity of more than 2,000 people). Having minimal equipment to install was important because Central Hall is a Grade II listed building, which identifies that buildings of special interest be preserved.

To ensure excellent service, Central Hall’s in-house production partners White Light Ltd. decided to install two expansion radiators so every seat would have exceptional reception.

Central Hall has used a portable infrared system to provide assistive listening to other smaller breakout rooms and areas within the facility, again providing an unparalleled quality of service and enhanced audio experience to visitors with hearing loss.

System Components

  • 1 x LT-84 Transmitter/Radiator Combination Unit
  • 2 x LA-141 iDSP Expansion Radiators
  • 1 x LS-88 Portable iDSP Infrared Kit
  • LR-4200 iDSP receivers
  • Charging accessories


Central Hall Westminster is one of central London’s largest conference venues. Opened in 1912 as a purpose-built meeting facility, Central Hall has hosted theatrical productions, concerts and political rallies.

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