V Lomech 2376/10a, 149 00 Praha 4 - Chodov

Modernization of AV Technology and Scenic Lighting Infrastructure of Prague Congress Centre


Prague Congress Centre belongs among the most important congress centres in Europe. But its fame is slowly fading due to obsolete equipment and insufficient capacity. The construction of a new multifunctional hall and extensive reconstruction of the centre interior are supposed to reverse this trend. Modernization of AV technology, in which we have participated, is part of this reconstrucion.

What was all part of the modernization?

  • Rekonstrukci systému infrastruktury pro AV technologii a scénické osvětlení.
  • Dodávku digitálních audio mixážních konzolí DiGiCo, řídících pultů scénického osvětlení ChamSys a koncových prvků scénického osvětlení – inteligentních světel ROBE.

What are the advantages of our solution?

  • Analogový systém distribuce zvuku jsme vyměnili za digitální, čímž dojde k výraznému zlepšení zvukové kvality reprodukované hudební produkce.
  • Pro distribuci audiosignálu jsme použili technologie Dante a MADI integrované do technologie Optocore, která umožňuje přenos až 512 audio kanálů.
  • Novou digitální infrastrukturu jsme navrhli tak, aby umožňovala značnou variabilitu a budoucí rozšiřitelnost.

Technical Specification

Audio System

Newly designed audio system is based on current standard in digital processing and distribution of multichannel audio with fixed and mobile AD/DA converters (stage boxe units). Fixed stage boxes have 32 line/microphone inputs, phantom power, 16 line outputs, multichannel Opto MADI connectivity with up to 512 channels, connection via 2× opticalCON or MADI via etherCON. It operates at 96 kHz if there are 28 input and 16 output channels via CAT5, at 48 kHz if a total capacity is 32 input and 16 output channels.

The entire distribution system and operating of new DiGiCo SD5 and SD10 digital mixing consoles is based on the topology of the interconnection of all elements in the system using redundant optical wiring. For distribution, we have designed Dante digital distribution protocol using the benefits of classical data (metalic/optical) cabling. Conversion to a digital domain take place on stage boxes that are configurable in terms of the number of inputs and outputs and the required interface.

Video System

Mobile video equipment for Congress Hall and Forum Hall we have expanded with the Extron converters (transmitters and receivers) that allow video signal processing at 4K resolution. Video signal distribution is also dimensioned for 4K resolution, it is solved by coaxial and optical cabling ended on patch panels.

Scenic Lighting

We have complemented the current system in order to expand technical parameters of lighting equipment and its control, including new control cabling and the required connection points. For Congress Hall and Forum Hall, we have delivered and installed ChamSys scenic lighting control consoles and ROBE and Robert Juliat programmable lights (profile lights, LED lights with effects, LED PAR lights).
The AVT Group a.s. was founded in 2013. Since the very beginning we have been following a clear vision - offering highly qualified services in the field of audiovisual technologies and room acoustic. Our team is consisted of many certified experts who have been working in this field since the turn of the millennium.


V Lomech 2376/10a
149 00 Praha 4 Chodov
Metro Opatov
Czech Republic

Office Brno – JIC INBIT
Kamenice 771/34
625 00 Brno-Bohunice


+420 777 173 174
Copyright © 2019 AVT GROUP a.s.