The LKH Arena in Lüneburg, Germany, is a brand new venue for events, music and entertainment, and the home for Volleyball First League team SVG Lüneburg. Brimming with world-class features, the arena has the capacity to accommodate 3500 spectators and has been outfitted with a world-class NEXO sound system.
District administration turned to the Lüneburg-based installer Protones, a company with decades of live event experience, who recommended a NEXO solution:
“We’ve undertaken a number of installations with NEXO and the results are always really good”, explains Protones Managing Director Benjamin Schulenkorf. “At the LKH Arena, we were able to supplement the main PA clusters of 48x NEXO GEO S12s with 28x ID24s under the balconies. The ID24 has a massive output for such a small speaker and helped to achieve uniform SPL coverage throughout the venue, and NEXO NXAMP powered controllers gave us a truly plug and play solution for networked amplification and processing. What’s more, we can use the installed system for delays when we bring in mobile FOH systems for music events.”
Working in close collaboration with the NEXO Engineering Support team, Protones System Designer Arne Sumfleth and Project Manager Eike Brameier were able to model the performance of the proposed system using NEXO’s NS-1 simulation software, generating the necessary reports for position, weight, gravity centre, forces, working loads and safety factors.
Although conventional in its design, the LKH Arena required an unusual location and configuration of sub elements, as NEXO’s Head of Engineering Support François Deffarges reveals:
“We originally thought of implementing LS18 subwoofers in distributed arrays, but this proved to be impractical, not just because it lowered the GEO S12 clusters below their optimum height, but also because it exhibited significant interference patterns. So we then investigated the central cluster option: omnidirectional, cardioid, low frequency lobe downwards or straight, along the width or the length of the venue. Ultimately, the solution we opted for was 2 X LS18 clusters back-to-back along the width of the venue, cardioid lobe downwards, giving a +/-2 dB deviation from 30 Hz to 85 Hz over the entire venue. And by properly time aligning each GEO S12 cluster to the venue central point, we kept the coherency in the cross-over region at its best, for all seats in the venue.”
