The Eurovision Song Contest 2026 was a triumph for technical production company Agorà and Sennheiser, with the latter's Spectera system delivering a new benchmark for arena sound. This article delves into the technical prowess and behind-the-scenes efforts that made this event possible, highlighting the importance of Sennheiser's expertise and the evolution of Spectera technology.
A Technical Spectacle
The Vienna Stadthalle was transformed into a spectacular venue, with Sennheiser's Spectera system at the heart of the audio setup. The technical application engineering team, led by Jonas Næsby and Volker Schmitt, played a crucial role in providing support and ensuring the system's seamless performance. The wideband system and new workflows it enabled were key to the event's success.
Valerio Motta, ESC project lead at Agorà, praised the collaboration with Sennheiser, stating that their involvement made the audio team feel supported and confident. The system's reliability and speed were essential in a fast-paced, dynamic production environment.
Behind the Scenes: The Sound Room
The Stadthalle's sound room, led by Head of Sound Gerhard Jansa, was the hub of activity, handling mic audio, IEM audio, artist audio preparation, and audio distribution. Two independent mixing desks with operators ensured failsafe operation, and the sound room accommodated six Spectera Base Stations, with four active for audio and control data, one for scanning, and one as a true spare unit.
Simplifying Complexity with Spectera
Spectera's simplicity in cabling the arena was a game-changer, as Jonas Næsby explained. The use of fibre runs and standard IT media converters allowed for full performance from the remote antennas, avoiding the compromises of RF-over-fibre systems. This setup ensured perfect coverage when artists entered the stage from behind the video wall.
Mic Rotation and Artist Experience
The audio team provided mic rotation with six Spectera handhelds, in-ear rotation with six Spectera SEK bodypacks, and an 'all-in' rotation with six Spectera bodypacks. The bidirectional Spectera bodypack with a cardioid Headmic 4 was a hit with artists, offering fantastically clear, spatial in-ear sound. The soon-to-be-released Neumann KK 105 A capsules were also a favorite, reducing pick-up from adjacent sound sources.
Solving Fading and Phasing Issues
Sennheiser's Spectera technology, developed to address fading challenges at the ESC, has come full circle. The wideband technology, multiplexing microphones, and time slots eliminated fading notches and cancellations. The system's ability to sync internal clocks of digital microphones resolved phasing issues, ensuring crystal-clear audio and flawless wireless performance.
A Collaborative Effort
The success of the ESC 2026 was a collaborative effort, with Sennheiser's Spectera system playing a pivotal role. The company's expertise in wireless audio and its evolution of Spectera technology have set a new benchmark for arena sound, leaving a lasting impact on the industry.
As Jonas Næsby proudly stated, Sennheiser's journey with the ESC began with wireless audio in the 80s, continued with the digitisation of Digital 9000 in 2013, and culminated in the cutting-edge Sennheiser WMAS with Spectera at the 2026 edition.
