Compact Dual Channel Loop Driver 3ARMS @ >7Vrms

Built in 90º phase shift, high frequency compensation, AGC, sleep mode. 100V Line input.

Our compact HLD5 is a standalone, flexible dual output hearing loop driver with integral phase shifter for perimeter or phased array configuration, designed for smaller facilities and venues. It features a 100V input line for public announcement feeds.

Applications

Suitable for small and medium sized facilities, such as:

• Meeting rooms
• School rooms
• Nursing & care homes
• Reception & waiting areas
• Educational establishments

Features

• Easily configurable, built-in 90º phase shift
• Efficient power utilisation
• Sleep mode
• High frequency compensation
• Continuous self-testing
• Drive level indication
• Intelligent protection system
• Interface to external communication device100V input line for interface with PA system

Specifications

• Dimensions:
  Height – 99mm (3.9”)
  Width – 200mm (7.8”)
  Depth – 40mm (1.6”)
• Weight: (boxed incl. power supply) 1.5kg (3.3lbs)
• Construction: Aluminium
• Finish: Black Powder Coated

• MIC A: Balanced or unbalanced (depending on how wired) switch selectable standard phantom power of 12V or 5V DC for electret
• MIC B: Balanced or unbalanced (depending on how wired) switch selectable standard phantom power of 12V or 5V DC for electret
• Line A: Line level: 0dBV, adjustable
• Line B: Line level: 0dBV, adjustable
• 100V Line: Transformer isolated, adjustable

• Loop A connection: 2 x 2 way Phoenix screw terminal blocks
• Loop A drive current: 3Arms compliance current at 1kHz sine wave
• Loop A drive voltage: 7Vrms compliance voltage
• Loop B connection: 2 x 2 way Phoenix screw terminal blocks
• Loop B drive current: 3Arms compliance current at 1kHz sine wave
• Loop B drive voltage: 7Vrms compliance voltage

• External LEDs or relays: 2 x constant current drive @ 20mA, 22V max

• External monitor & control: Contacta communications processor interface

• Frequency response: 100 Hz – 5kHz (±3dB)
• Distortion: Better than -40dB, inputs at nominal level

• Analogue:
  Dynamic range: 40dB typical
  Attack time: 10 milliseconds
  Release time: 500mS

• Function switching: All functions selectable via 2 sets of DIP switches; one set to select options on input and one set to select options on output

• Output A & B: 8 level bar graph with peak hold
• Other indications: LEDs for independent status indications per output