HLD2 - 1 to 1 Hearing Induction Loop Driver
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List Price £115.50 incl. VAT
Contacta - HLD2

1 to 1 Hearing Induction Loop Driver

Induction Loop Facility
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incl. VAT
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Product Description

The Contacta HLD2 1 to 1 loop driver is an under-counter audio amplifier for driving hearing induction loop systems, providing improved communication and customer experience for the hearing impaired.

Combined with Contacta's IL-AE97 or IL-AE99 Loop Aerials and microphone options, this one-to-one hearing loop driver relays the sound source to someone wearing a hearing aid device. Contacta's HLD2 is very efficient with a high quality sound reproduction and controlled by a microprocessor which shuts off when not in use.

The HLD2 does not come with a power supply. You will require part codePS-55-00.

Also available in complete systems kits:
IL-K200-00-00 Under Counter Induction Loop Kit with Mini Boundary Microphone
IL-K200-20-00 Under Counter Induction Loop Kit with Halo Gooseneck Microphone
IL-K300-00-00 Above Counter Induction Loop Kit with Mini Boundary Microphone

*Please contact the CIE office on T 0115 9770075 for information on related products and accessories.

Specification Sheet

  • Microprocessor control
  • Energy-saving ''green'' standby mode achieves a power saving of up to 80% during quiet periods
  • Advanced audio processing features AGC, compression and noise gate
  • Constant-current loop drive
  • Continuous self-testing
  • Simple to install
  • Power and LED status indication
Description HLD2
Inputs-Input 1 (Microphone) Screw terminals on 3.8mm 2 pole Phoenix connector. Single-ended electret microphone, powered by 5V via 2.2K ohms
Dimensions 116(H) x 116(W) x 40(D) mm
Power Centre positive power jack, 14V DC 2A via 2.1mm from our P55 power supply unit (NOT SUPPLIED)
Loop Output-Loop connection Screw terminals on 3.8mm 2 pole Phoenix connector
Loop drive current 2A RMS compliance current @ 1Khz sine wave
Loop drive voltage 4V RMS compliance voltage @ 1KHz sine wave
Audio-Frequency response 100Hz - 5kHz (±3dB)
Distortion Better than -40dB, inputs at nominal level
Automatic Gain Control-Processor controlled Dynamic range: 40dB typical Attack time: 10 milliseconds Release time: typically 10 seconds, varies with program content
Indications-Status LEDs 3 colour LEDs indicate power, input and output diagnostic information Connection provided for our LED halo indicator microphone
Self Test-Microprocessor controlled Unit, including microphone and loop connections is continuously monitored, and internal and external LED indicators are updated
Energy saving-Sound activated Unit will enter low energy ''sleep'' mode when acoustic conditions indicate lack of usage
Weight (Net) 0.30kg
Weight (Gross) 0.40kg
  • UVDB Registered
  • PLASA Member
  • Member of BESA
  • BSI 9001
  • ISCE supporting member