Bosch’ retrospective on Kia Metropol Arena audio systems


The Kia Metropol Arena opened in 2021 in the German city of Nuremberg, with 4,000 capacity across four stands. Bosch says the arena is highly secure with crystal-clear sound to boot.

The building was buitl with IoT, connectivity and digital solutions in mind; the latest IP technologies for video surveillance, intrusion and fire protection are installed, and the arena also hosts an integrated solution for public address and voice alarm, dispensing with analog transmission paths.

The sound system and voice alarm solution implemented in the Nuremberg arena meets all requirements for major events, with the technological heart of the system – the IP-based Praesensa system from Bosch – offering a flexible solution with a built-in fail-safe due to its multi-channel amplifier architecture. A digital mixing console and radio microphones are connected to the system, and a total of 56 certified full-range loudspeakers from Electro-Voice were installed in the interior of the Kia Metropol Arena.

The acoustics of sports halls are often considered particularly difficult to get right due to the reverberation caused by the spacious architecture. To address this, Bosch’s sound system experts and acoustic designers ran simulations in a 3D model in combination with  in-situ fine tuning. The 20,000W system covers all buildings and rooms, including VIP lounges, press rooms, catering, changing, and training zones where additional loudspeakers are installed.

Bosch says the fully digital system offers clarity, a high level of cost-effectiveness and operational ease. Announcements can be made live or played automatically from digital memory. Meanwhile, maintenance by Bosch can be carried out remotely, while adjustments can be made easily by updating the software. The solution is designed with energy efficiency in mind.



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Benedict is editorial assistant, social media manager and staff writer across several aviation, automotive and performance technology titles published by Mark Allen Business. He is a graduate of the University of Southampton and spends his free time organising comedy shows, playing basketball loudly and guitar quietly.

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