Hearing Loop Systems

SigNET manufactures the UK’s widest range of audio-frequency induction loop equipment for the hard of hearing. From a simple portable loop system for a ticket office to a top quality professional loop system for a cinema or theatre, our PDA RANGE is highly cost effective and includes a wide range of kits to help simplify specification, purchase and installation.

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There are 12 products.

Showing 1-12 of 12 item(s)

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  • PL1/K1 Portable Hearing Loop Kit

    • Ideal for restricted person to person contact in areas such as banks, post offices, small meeting rooms, reception desks, open plan offices and ticket booths.
    • Supplied with a robust wall-mounting storage shelf.
    • Portable, lightweight design allows the system to be moved easily from location to location.
    • Simple one button operation.
    • Integral high performance microphone.
    • Excellent sound quality.
    • Five years' expected battery life under normal operating/charging conditions.
    • Auto shut-off facility (user selectable for 10, 30 or 60 minutes) helps preserve battery life.
    • Connection of the plug-top charger overrides the timer function to ensure the unit remains operational at all times.
    • Can be used as normal whilst charging.
    • Also available, the PL1/K3 portable hearing loop kit (supplied in a robust plastic storage case but WITHOUT a plastic storage shelf).
  • ML1/K Counter Hearing Loop Kit

    Everything you need to create a high quality stand alone counter hearing loop system for the hard of hearing.

    • Ideal for banks, post offices, small meeting rooms, reception desks, ticket booths and any other application requiring restricted or small area coverage
    • Requires no specialist audio experience or connectors – can be fitted by any competent electrician
    • Space-saving double-gang wall-mounting amplifier fits standard UK 25mm back boxes (requires fixed mains wiring)
    • Omni-directional AMT microphone (supplied) plugs directly into 3.5mm socket on the amplifier’s front
    • Line/outreach socket also provided (max 3 outreach plates per system)
    • User-adjustable mic. sensitivity and engineer-adjustable loop drive and input level controls
    • Meets and exceeds the requirements of BS7594 and EN60118-4 when correctly installed
  • PDA103C Counter Loop Kit

    • Everything you need to create a high-quality fixed hearing loop system for a counter, desktop or ticket booth.
    • Ideal for banks, post offices, small meeting rooms, reception desks, ticket offices and any other application requiring restricted or small area coverage
    • Amplifier includes a 3.5mm microphone input (for use with the AMT microphone supplied), a line level input and an ‘outreach’ socket
    • Metal compensation control helps improve intelligibility in rooms with high metal content
    • Adjustable mic, line level and ‘outreach’ controls.
    • Drive (level) control allows the amplifier’s output stage to be set-up to suit the exact characteristics of the application.
    • State-of-the-art audio processor features an automatic gain control which compensates for poor microphone techniques and helps suppress loud noises, hisses and clicks
    • Limit, Peak, Loop Fault and Power On indicators
    • Designed to be wall-mounted using the keyholes provided
    • Meets and exceeds the requirements of BS7594 and EN60118-4 when correctly installed
  • PDA103L/R Small Room Loop Kit

    Two variants available, each containing:

    • Everything you need to create a high quality hearing loop system for a room up to 50m2 (7m x 7m)
    • PDA103L kit ideal for small meeting rooms, council chambers, doctors' surgeries, etc.
    • PDA103R kit ideal for small room applications where equipment needs be mounted above suspended ceilings, etc.
    • Note that a Domestic TV/Music Lounge kit c/w digital TOS-link connector is also available – see our separate PDA103S listing for details
    • PDA103 amplifier includes a 3.5mm microphone input, a line level input and an 'outreach' socket
    • Metal compensation control helps improve intelligibility in rooms with high metal content
    • Adjustable mic, line level and 'outreach' controls.
    • Drive (level) control allows the amplifier's output stage to be set-up to suit the exact characteristics of the application.
    • State-of-the-art audio processor features an automatic gain control which compensates for poor microphone techniques and helps suppress loud noises, hisses and clicks
    • Limit, Peak, Loop Fault and Power On indicators
    • Designed to be wall-mounted using the keyholes provided
    • Meets and exceeds the requirements of BS7594 and EN60118-4 when correctly installed
  • PDA103S Domestic Loop Kit

    • Includes everything you need to create a high quality domestic hearing loop system for bedrooms, living rooms, TV lounges and studies up to 50m2 in size (7m x 7m)
    • PDA103 amplifier includes a 3.5mm microphone input, a line level input, a digital 'TOS' link connector for connection to TV sets (TV set connection requires separately available TOS-link cable. See main instructions for further details).
    • APL outreach plate also supplied for connection to audio sources.
    • Metal compensation control helps improve intelligibility in rooms with high metal content
    • Adjustable mic, line level, 'digital' and 'outreach' controls.
    • Drive (level) control allows the amplifier's output stage to be set-up to suit the exact characteristics of the application.
    • State-of-the-art audio processor features an automatic gain control which compensates for poor microphone techniques and helps suppress loud noises, hisses and clicks
    • Limit, Peak, Loop Fault and Power On indicators
    • Designed to be wall-mounted using the keyholes provided
    • Meets and exceeds the requirements of BS7594 and EN60118-4 when correctly installed
  • AK Range / 200E Hearing Loop Kits

    • A powerful and very cost-effective induction loop amplifier designed to drive a perimeter loop of up to 200 square metres
    • Fully compliant with BS 7594, clause 10 A3 and BS EN 60118-4 when correctly installed
    • Available in a wide range of kit formats – suitable for use in meeting rooms, waiting rooms, TV lounges, health and fitness suites, churches, etc (see kit list below)
    • Up to 200 metres (metal free) coverage – ideal for most ‘free space’ applications
    • Features TWO balanced/unbalanced line level inputs and one microphone input with phantom power for electret microphones
    • Ideal for electrical contractors – no audio connectors or experience required
    • Metal compensation control to improve intelligibility in rooms with high metal content
  • PRO5/DW, PRO7/DW & PRO11/DW Amplifiers

    A new range of wall-mounting constant current, phase-shifting hearing loop amplifiers, from SigNET.

    • 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)
    • Digital optical 'Toslink' connector facilitates easy connection to TVs, soundbars, etc
    • Outreach connector allows up to 10 of our revolutionary audio input utility plates to be added
    • Anti-tamper lock function prevents unauthorised adjustment of system settings
    • 5 year warranty as standard
    • Class D output stage for maximum efficiency and very high output
    • Superior analogue audio processing with a powerful CPU and cutting-edge technology provide life-like speech and frst class music reproduction
    • Short circuit protection against loop faults for increased reliability
    • Fault relay & graphical display provide clear indication of operation and fault status
    • Industry leading dual action automatic gain control compensates for poor microphone technique
    • Line level output for recording or daisy-chaining multiple units to cover larger areas.
    • Designed and manufactured in the UK
  • PRO5/DD, PRO7/DD & PRO11/DD Amplifiers

    A new range of compact free-standing, constant current, phase-shifting hearing loop amplifiers, from SigNET.

    • 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)
    • Digital optical 'Toslink' connector facilitates easy connection to TVs, soundbars, etc
    • Outreach connector allows up to 10 of our revolutionary audio input utility plates to be added
    • Anti-tamper lock function prevents unauthorised adjustment of system settings
    • 5 year warranty as standard
    • Class D output stage for maximum efficiency and very high output
    • Superior analogue audio processing with a powerful CPU and cutting-edge technology provide life-like speech and frst class music reproduction
    • Short circuit protection against loop faults for increased reliability
    • Fault relay & graphical display provide clear indication of operation and fault status
    • Industry leading dual action automatic gain control compensates for poor microphone technique
    • Line level output for recording or daisy-chaining multiple units to cover larger areas.
    • Designed and manufactured in the UK
  • Outreach Plates

    SigNET's Outreach Plate audio input extension system comprises a range of wall, ceiling and desk mountable single gang audio input plates specifically designed to increase the audio input capability of an induction loop system. Covering the most common variants of audio connector, they work by mixing the signals from various audio input sources into one balanced line level input which can be fed into the line input of a compatible amplifier.

    Mountable on 25mm back boxes, each plate features a built-in mixer, pre-amp, input level control and balanced output. The fact they can be installed at the most convenient point on an installation overcomes the need for long and potentially hazardous microphone/audio leads.

    Typically, up to 10 Outreach plates (any mix) can be daisy-chained to one balanced line level input with cable lengths of up to 100m easily achievable using standard two-pair audio cable with no recognisable degradation of audio signal quality.

    Each outreach plate requires four wires, two balanced line (A +, A –), one ground (0V) and one power connection (12-32 V DC regulated). Click on the thumbnails below left for typical wiring schematics.

    ble c/w Schuko plug adaptors, black, 7.5A (add /SH to the UK part nos)

  • Microphones

    A microphone is perhaps the most important link in an audio chain.

    As the connection between the sound source and the sound system, it must interact efficiently with both.

    Choosing this link successfully requires knowledge of the sound source, the sound system (including the room acoustics), microphones and the actual application.

    A number of microphones are available from SigNET for use with its induction loop systems (see our Microphone Selection Guide below).

  • Loop Testing Equipment

    SigNET recommends all its induction loop systems are tested using a ‘Fosmeter Pro’ Induction Loop Test Kit (FPROK1).

    Designed to simplify the setup of an induction loop system to the latest version of BS EN 60118-4 (Magnetic field strength in audio-frequency induction loops for hearing aid purposes), the kit includes an FPRO Fosmeter Pro induction loop tester c/w intuitive display and simple to follow test menus, a calibrated signal generator c/w pre-loaded test tones and a set of headphones.

    As well as checking the magnetic field strength of an induction loop system, it also measures background noise, frequency response, metal compensation AND allows you to listen to the loop signal.

    The tester and signal generator are each powered by a 9V PP3 battery and both are supplied in protective canvas carrying cases.

  • Loop cable & Ancillaries

    SigNet can supply two types of Induction Loop Cable:

    • 100m reels of single core loop cable (0.5mm2, 1.0mm2, 1.5mm2, 2.5mm2)
    • 100m reels of flat copper foil tape (0.5mm2, 1.0mm2, 1.5mm2)

    Copper foil tape is typically used for floor loops under light duty carpets. Protective tape is also required to hold the cable down and reduce the likelihood of damage. Copper foil tape should be connected to the loop amplifier using solid 0r 1A ‘choc’ block.

    Note: The chemical elements of some self-leveling floor compounds can react with the pastic covering of copper foil tape. If installing the loop under such a compound, we recommend you check compatibility by testing a small piece of tape with the compound and check for adverse reactions.