During the liturgy, the congregation stresses particular importance to choral support of the sermon. Therefore, great attention was paid to good audibility and excellent sound characteristics at various positions within the hall. Besides the sermons, choirs, orchestras and further musical contributions are an essential pillar of the services. Furthermore, all sermons are recorded and later made available as audio files for download if parishioners weren't able to attend. A simultaneous translation of the service in the Russian language is available for the parishioners.
During installation and calibration of the system, structural conditions such as balconies and different surfaces had to be taken into account. In such demanding environments, the HDL 10-A offers many adjustment possibilities regarding radiation angle or coverage – quickly to implement using the RCF Shape Designer. The active 2-way system is extremely reliable, especially in fixed installations, and offers 1400 Watt peak power leveraging the integrated, efficient digital power amplifier.