Contacta V34a PRO Induction loop driver

General Description

The Contacta V34a PRO is a class D dual output hearing loop driver with integral phase shifter for phased array configuration in large rooms. The amplifier features digital signal processing, continuous self-testing, integrated protection circuit, and backlit colour LCD displaying a simple user interface.

Features

Phase-shifting dual outputs
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 output stage capable of delivering 12ARMS @ >34VRMS
Custom heat-sinks and active cooling
Integrated universal switch mode power supplies provide ultra-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

Delivery Includes

1 V34a PRO Hearing loop driver

Technical Data

Dimensions: H 44 x W 433 x D 301mm
Construction: Mild Steel
Finish: Black Powder Coated
Audio Inputs: 2 X line/microphone inputs (switchable) XLR or Euroblock: Line (optimised for -10dBV to 0dBv), Microphone (12V phantom power via 680Ω optimised for levels above -45dBv)
Loop Outputs: Outputs Voltage: 2 x 34Vrms* (96.1V pk-pk), Output Current: 2 x 12Arms @ 1KHz* (33.94A) pk-pk >1200 seconds (20 minutes), Loop Connector 2 x NL4
Audio System: Frequency Response: 100Hz to 5KHz, Distortion: THD<1% (-40dB) full current both channels driven, Automatic Gain Control: DSP controlled, peak detecting, High Frequency Compensation: 7 DSP controlled, optimised stages, Audio Signal Delay 10ms to 40ms
Display: Backlit TFT 480 x 128 pixels (95mm x 25mm)
Control: Single Rotary Push Control
Mains Input: Voltage: 100V-120V /200V-240V AC (universal auto switching with PFC), Frequency: 50Hz/60Hz, Connection: IEC
Cooling: Custom heatsink with temperature-controlled fan