PRO/S Range Professional Hearing Loop Amplifiers

Introducing SigNET’s new PRO/S range of constant current hearing loop amplifiers, all with easy-to-use graphical displays & Class D output stages for maximum efficiency.

  • Clear & intuitive graphical interface allows simple set-up of input levels, output current, phantom power and metal compensation
  • 200m2, 500m2 or 1000m2 coverage (model dependent)
  • 2 x XLR mic/line inputs (selectable)
  • Outreach connector allows up to 10 of our revolutionary audio input utility plates to be added
  • Dedicated wall-mount and free-standing options
  • Anti-tamper lock function prevents unauthorised adjustment of system settings
  • Short circuit protection against loop faults for increased reliability
  • Superior analogue audio processing with a powerful CPU and cutting-edge technology provide life-like speech and first class music reproduction
  • Fault relay & graphical display provide clear indication of operation and fault status
  • Industry leading dual action automatic gain control compensates for poor microphone technique
  • Complies with EN62368-1 (Safety requirements for audio/video, information and communication technology equipment)
  • Line level output for recording or daisy-chaining multiple units to cover larger areas
  • 5 year warranty as standard
  • Designed and manufactured in the UK
  • Dual ‘phased array’ PRO/D versions with digital TOS link connectors also available – click here for details


Type: Free-standing (supplied with IEC 320 fused mains lead) or Wall-mount (requires permanent connection to Mains)
200m2, i.e. rooms up to approx. 14m x 14m (PRO5/SD free-standing, PRO5/SW wall-mount, both 4.75A).
500m2, i.e. rooms up to approx. 22m x 22m (PRO7/SD free-standing, PRO7/SW wall-mount, both 7.5A).
1000m2, i.e. rooms up to approx. 31m x 31m (PRO11/SD free-standing, PRO11/SW) wall-mount, both 11A).
Inputs: 2 x XLR mic/line (selectable); 1 x Outreach.
Outputs: Loop 1 & Loop 2; Line Out; Fault Relay.
Controls: Graphical ‘OLED’ display with 4 membrane control buttons.
Dimensions: Free-standing: 67H x 218W x 280D mm. Wall-mount: 298H x 308W x 74D mm Weight: Free-standing: 2.38kg; Wall-mount: 3.35kg.

Download our PRO/S Range datasheet