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Large Dual Output Hearing Loop Driver - 


V34A-PRO - Large Dual Output Hearing Loop Driver
V34A-PRO - Large Dual Output Hearing Loop Driver

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CONTACTA Hearing Loop Drivers
Technical Datasheet:
V34A-PRO   Datasheet
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Product Range Selector (CONTACTA Hearing Loop Drivers)

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Product Overview

V34a PRO is a constant current hearing loop driver with dual output for phased array loops. It is designed for large facilities and venues. It has a Class D amplifier output stage and an audio subsystem built around advanced digital systems including an ARM Cortex processor and dual DSP. Combined with a powerful CPU to ensure peak performance, the V34a PRO provides self-monitoring and email alerts, remote setup over local area networks, guided hearing loop setup to make installation simple, and excellent speech and music reproduction.
  • Audio Inputs: 2x mic/line XLR/Euroblock (12V mic phantom power)
  • Loop Outputs: 2x NL4
  • Backlit TFT display
  • Frequency response: 100Hz to 5kHz
  • Audio signal delay: 10 to 40ms
  • Inbuilt guided hearing loop setup utilising an integral test signal generator
  • Intelligent self-monitoring system supplies status emails on changes to driver functions
  • Dual DSP controlled automatic gain control and high frequency compensation for metal loss
  • Class D amplifier
  • Highly rated custom heat sinks and active cooling
  • Integrated universal switch mode power supplies provide efficient power utilisation (up to 90% efficient)
  • Constant current output stage
  • Adjustable audio time delay for audio syncing across large distances
  • Intuitive and sleek user interface on a full colour, high resolution LCD
  • Adjust both drive and loop output levels using an embedded LAN service, minimising installation time
  • Settings/profiles saved to a USB storage device
  • Continuous self-testing
  • Integrated protection circuits with temperature, voltage, short circuit and DC detection
  • Full width 1U 19" rack mount
  • Dimensions (HxWxD): 44x433x301mm


Audio, Business, Telecommunications, Conferencing, Public, Education, Commercial, Installations, Office


Area coverage: 1:1 - 1521m², 1:2 - 1740m², 1:3 - 1680m² (no metal loss)

Product Information

CONTACTA Hearing Loop Drivers


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Technical Documents (2)

Available for back order

More stock available to supplier lead times which is approximately 25/12/23


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€1,244.875 ( €1,531.20  Inc. VAT)

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