Contacta HLD7 Modular Induction Loop Amplifier - Small/Medium Room

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£411.00 £493.20
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Product Description

Product Ref:hld7

The Contacta HLD7 modular hearing loop driver for perimeter or phased array communication.

This feature-full driver is ultra-reliable and the controls on the front panel makes this unit simple to install and configure. The efficient use of power has enabled the device to be compact.

Contacta's HLD7 is part of a new generation of drivers with it's new edge loop technology which enables ease in establishing a remote set-up, performance monitoring and control of levels.

Suitable for medium sized facilities such as places of worship, lecure halls, small theatres and meeting rooms.

Contacta HLD7 Key Features:

  • Built-in 90 phase shift
  • Flexible configuration
  • Ultra efficient power utilisation
  • Sleep mode
  • High frequency compensation
  • Accurate, lockable controls (front panel mounted)
  • Continuous self-testing
  • Input and drive level indication
  • Intelligent protection system
  • Flexible audio inputs
  • Interface to external communication devices
  • Digital Signal Processor


  • Inputs-Input 1 (microphone) Balanced XLR with switchable phantom power or '' TRS jack for electret microphone with 3.3VDC powered via 680Ω load
  • Input 2 (line) Balanced XLR or '' TRS jack to ohmically isolated input
  • Loop Output-Loop connection 4-pole speakON connector
  • Loop drive current 6A RMS compliance current @ 1Khz sine wave
  • Loop drive voltage 15V RMS compliance voltage
  • Expansion-Contacta interconnect Input or output to or from additional Contacta systems. 90 phase shift selectable
  • Status-Volt-free relay contacts SPCO
  • Feature-External monitor & control Contacta communications processor interface
  • Audio-Frequency response 100Hz - 5kHz (3dB)
  • Distortion Better than -40dB, inputs at nominal level
  • Automatic Gain Control-Digitally controlled Dynamic range: 40dB typical Attack time: 33 milliseconds Release time: 3.6dB per second
  • Controls-Microphone level/Line level Off, then to maximum in 50 1dB increments
  • Loop current Off, then to maximum in 63 1dB increments
  • High frequency compensation Flat to 6dB boost in 7 increments
  • Function switching All functions selectable from front panel buttons, held in non-volatile memory
  • Security Controls may be locked against tampering
  • Displays-Microphone level/Line level/Output drive level 8 level bar graph with peak hold, 6dB steps
  • Other indications LEDs for all setup and status indications
  • Dimensions 200mm(W) x 44.5mm(H) x 260mm(D)
  • Weight (Net) 2.50kg
  • Weight (Gross) 3.30kg


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