The acoustics in churches is often very challenging for hearing aid users. Parishes are well aware of that and usually houses of worship are installed with hearing loop systems. However the loop systems are often old and designed as perimeter loops. Moreover the induction loop amplifiers are too often undeporwered or not tested according the international loop standard IEC 60118-4.

Qlu-mapping not only provides maps that show the best hearing loops quality areas, but also includes tuning of the loop system to it's maximum performance. Typically to loop coverage increases 20 to 30% as a result of the professional loop amplifier tuning during Qlu-mapping process.