HLD9 Hearing Loop Driver

HLD9 2

Our HLD9 is a modular hearing loop driver designed for large area applications such as theatres, conference facilities, sports arenas, concert halls and auditoriums. A single HLD9 is used for perimeter configurations, while two HLD9s linked together provide phased array configurations.

As a Class-D driver, it uses power extremely efficiently, meaning that it emits very little heat.

To make the experience of using it as simple as possible, the driver includes sophisticated communications capabilities enabling remote set-up and control of levels as well as system interrogation and performance monitoring.


  • Perimeter and 90° phase shifted (DSP controlled) amplifier output stages capable of delivering 10Arms @ 36Vrms
  • Flexible configuration
  • Efficient power utilization
  • Sleep mode
  • High frequency compensation
  • Continuous self-testing
  • Accurate, lockable controls (front panel mounted)
  • Input and drive level indication
  • Intelligent protection system
  • Flexible audio inputs
  • Interface to external communication devices
  • Digital Signal Processor

Product Sheet

User Guide

System Components

HLD9 Hearing Loop Driver

Our HLD9 is a modular hearing loop driver designed for large facilities.



2RU rackmount kit and expansion cable for up to (2) HLD9 driver(s)


Remote Monitoring Module, includes power supply and connection cables. For use with up to two HLD drivers.


Hearing Loop Hub

Visit our Hearing Loop Hub to see how hearing loops work, what different types of loops can do for your business, the latest information on legislations and standards, and frequently asked questions.

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