Voice Evacuation Product Overview

Overview

The NX-ML1K is a compact audio-frequency induction loop amplifier capable of generating a loop listening field for localised counters. The coverage is limited to approximately 1.2 sq m, making it ideal for restricted person to person contact in areas such as banks, post offices, ticket counters, etc.

The unit is designed to be wall mounted on to a standard UK 25mm double gang back box. It has a self-contained mains power supply, a microphone input, a balanced line level input, signal level controls and indicators.

The installation comprises of an amplifier, microphone and pre-formed counter loop. The loop is fitted to the underside of the counter top, on the customer side. The microphone is has a mounting clip to allow it to be positioned near to the user on the staff side. The microphone plugs directly into the amplifier, via a 2m lead.

What is an induction loop system?

Induction loop systems allow hearing impaired people to hear more clearly. Most hearing aids have a 'T' or 'MT' switch which allows them to pick up the electromagnetic field generated by a telephone ear-piece. This signal is converted by the hearing aid into a sound suited to its user's specific hearing requirements. An induction loop system uses this same principle but generates a much larger magnetic field than that created by a telephone ear-piece via a 'loop' of cable. Any hearing impaired person positioned within the loop can hear the loop signal by switching their hearing aid to the correct position.

Microphone Setup

The microphone supplied is omni-directional and will pick up sounds from all around it. To help reduce background noise, it should be sited near to the person speaking and pointing in their general direction. Avoid mounting it alongside sources of unwanted noise such as the cooling fan on a computer or a ringing telephone. The microphone sensitivity is adjustable with the level control on the front of the amplifier. In normal use the amplifier level indicator should just flicker 'red' when speaking. The output indicator should indicate 'green / orange' when speaking.