SOLUTIONS: FRIENDS ARENA, SOLNA
and redundant NetMax N8000 controllers with DM-1 modules for integration into the Dante network. This gives “a simple, robust and scalable system which is easy to maintain”, says Hurst. Four of these racks, identically configured, are located beneath the roof; they power the 12 XLD281 hangs serving the stands as well as the eight horn-loaded EVH-1152S/66 coaxial systems covering the playing area, with one-quarter of the stadium assigned to each rack. The other five racks, on the ground floor, serve the ancillary zones, such as passageways and non-public areas, including the banqueting hall, which is equipped with 14 EVF- 1152S/64 loudspeakers. Before the equipment was installed, LBI conducted a factory acceptance test (FAT) at its unit in Fyfield, UK. Says Hurst: “Everything was tested and the results documented – audio quality, audio routing, appearance of GUI graphics, correct function of presets, selection of emergency/non- emergency status, source priorities, to name just a few. System logs were created so that anything that wasn’t
ONLINE EXTRAS
You can read a 2010 interview we conducted with Steve Liddle at
http://tinyurl.com/InstLiddle
fully working could be rectified and retested.”
PA/VA INTEGRATION As one might expect with a modern stadium installation of this scale, the sound reinforcement system in the arena is linked to the evacuation system. The latter consists of around 500 ceiling speakers, 340 horn-loaded speakers for recorded music, 75 bidirectional loudspeakers and three digital message players – all from Bosch. When an alert condition is triggered, the VA system assumes control of the entire system. PA/VA was one of the key
integration areas in the project, says Hurst. “The ‘cause and effects’ strategy determining the routing of audio for any given detection event was quite complicated to implement, and required a significant amount of rework post-FAT,” he says. “As this is a life safety
system, it is designed such
that all equipment is continuously monitored with faults reported immediately and displayed topographically on both GUIs as ‘critical’ (area highlighted in red, meaning audio will not be heard) or ‘non-critical’ (area highlighted in pink, meaning some audio will be heard). Monitoring of equipment from a number of different suppliers – PCs, amplifiers and processors, network switches and UPSs – was required.” After the first few events at
the arena, the system was handed over to Sweden Arena Management, which is responsible for facilities management at the arena. Ongoing event support and maintenance is provided by Springwell Audio and LBI. The system has been
praised for providing even coverage, high SPLs and excellent intelligibility. Says Hurst: “The responses we’ve had from the client and patrons have been very
Integrator James
Hurst (left) of LBI and consultant/project
leader Steve Liddle of Springwell Audio
positive and we are delighted to have had the opportunity to work at this fantastic stadium.” Working on Friends Arena has been important to Liddle too. He concludes: “It’s been the high point of my career so far – the biggest job I’ve worked on.”
www.boschsecurity.com www.d-mpro.com www.electro-voice.com www.friendsarena.se www.genelec.com www.hp.com lake.labgruppen.com www.lbiprojects.co.uk www.premier-acoustic.co.uk www.sennheiser.com www.springwellaudio.se www.tascam.com www.yamahacommercialaudio.com
[ABOUT THE INSTALLER]
LBI Projects specialises in the design and installation of audio, video, AV and stage lighting systems in a varied range of
establishments both in the UK and internationally
One of its most significant stadium projects to date is the new Wembley Stadium, which opened in 2007
Other sectors in which the company works include education, corporate, marine, entertainment and houses of worship
58 June 2013
www.installation-international.com
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