V Lomech 2376/10a, 149 00 Praha 4 - Chodov
Krabošická 60, 251 01 Voděrádky, Říčany

Ing. Ján Eržiak


Electrotechnical Enthusiast

In our company I’m the one who takes care of the life cycle of AV technology. At fi rst I design the connection between all the separate parts, then I program a control system which defi nes how they will cooperate, and at the end I very often even connect them. I like that moment when the whole system comes alive and everything works just fine.


poslat e-mail
+420 737 782 306


in the field of audiovisual technologies 


 authorized programmer of control systems


ČVUT, Faculty of Electrical Engineering
Ing., Telecommunications and Radiotechnology


AVT Group a.s. | 2014–současnost
AV technology and Control Systems Designer

SONING Praha a.s. | 2009–2014
AV Technology Designer

DELTRONIC, s.r.o. | 2009
Output Control Technician

Certificates and training 

Certificate of professional competence in electrical engineering according to the Decree of ČUBP and ČBÚ no. 50/1978 Coll.

AMX Harman Certified Control Associate | Programming, 2017

EXTRON Authorized Programmer, Amersfoort NL, 03/2016

EXTRON Control Pro School, Amersfoort NL, 06/2014

My Most Significant Projects

Kulturní objekty

Školská zařízení

Faculty of Education, Palacký University in Olomouc, research and education centre (control system of AV technology), 2013

KKVC Zlín (control system of AV technology), 2012

State Opera, Prague – reconstruction of the electroacoustic chain (project), 2012

Musically Dramatic Laboratory of JAMU in Brno(project), 2011

KD Petrovice (control system of AV technology), 2010

City Theater Kladno (sound project), 2010

Petr Bezruč Theater in Ostrava (sound project), 2009

Multifunctional sport stadium in Motol (sound project), 2009

I’d hate to buy a pig in a poke, that’s why I’m always happy if I can see the insights of all parts I integrate into an AV system.

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 acoustics. Our team consists of many certified experts who have been working in this field since the turn of the millennium.

Since 2014 we have been certified IMS ISO 9001, ISO 14001, ISO 45001 from the renowned Quality Austria company.


Home of AV
Service and logistics center
Krabošická 60
251 01 Voděrádky, Říčany

AVT Group a.s.
V Lomech 2376/10a
149 00 Praha 4 - Chodov

Office Brno
Kamenice 126/3
625 00 Brno-Bohunice

Service warehouse
Mladá Boleslav

Průmyslová 829
293 06, Kosmonosy


+420 774 189 182
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