Description
https://www.youtube.com/watch?v=wqLjFI6KJhE&t=1s
An under-counter loop system that enables clear communication with hearing instrument wearers, especially where background noise is a problem or clear speech is restricted. It has a flexible, discreet hearing loop aerial that can be bent to shape, allowing it to be tailored to many different counters.
Features
Microprocessor control
Energy-saving “green” standby mode, achieves a power saving of up to 80% during quiet periods
Advanced audio processing features, including AGC, compression and noise gate
Constant-current loop drive
Continuous self-testing
Isolated audio line input allows the driver to take alternative audio sources (optional)
Power and LED status indication
Magnetic field range of 1200mm
Technical Specifications
Amplifier : dimensions[tab]116 x 115 x 40mm
Amplifier : weight[tab]0.1kg
Amplifier : construction[tab]ABS Housing
Amplifier : supply voltage[tab]12-14Vdc
Amplifier : quiescent current[tab]100mA typical
Amplifier : operating current[tab]2A typical on speech peaks
Amplifier : speaker output power[tab]RMS 2.5W @ 8Ohms : 4.4W @ 4Ohms
Amplifier : loop drive compliance[tab]constant current, bounded by 4V RMS & 2 A RMS
Amplifier : total harmonic distortion[tab]<5% (loop & speakers)
Microphone : dimensions[tab]70 x 40 x 100mm
Microphone : polar pattern[tab]Cardioid
Microphone : frequency response[tab]70Hz – 20KHz
Microphone : sensitivity[tab]-46dBv @ 1KHz
Microphone : distortion[tab]typically less than 1%
Hearing loop aerial : dimensions[tab]3.96m long cable
Hearing loop aerial : weight[tab]0.1kg
Hearing loop aerial : construction[tab]copper wire with black plastic sheath
Hearing loop sign : field range[tab]1200mm
Weight
1.0600kg
Dimensions
85 x 325 x 220mm
