Genelec solution for Stockholm complex
Tuesday, 21 December 2021
vasakronanarenaprimage12500x1750pxVasakronan Arena in the heart of Stockholm
Sweden - Property company Vasakronan has a commercial property portfolio comprising 170 properties with a total area of 2.3m sq.m. Arena Sergel in the heart of Stockholm is the company’s most recent project and combines the Vasakronan HQ with one of Sweden’s most modern and innovative co-working locations.
To ensure wellbeing at every level, Efterklang - experts in sound design, acoustics and vibration control - were called in to design an efficient and attractive sound environment, which was implemented thanks to a comprehensive Genelec Smart IP solution supported by 4000 Series installation loudspeakers.
Efterklang was asked to design a sound environment that would support the different needs, functions and flows in Arena Sergel. Margareta Andersson, sound architect and section manager at Efterklang, explains: “The key is a well-balanced interplay between acoustic measures and psychoacoustically anchored sound design. Psychoacoustics is the study of the relationship between sounds and how sound affects us. The aim is to create an inviting environment where visitors and co-workers can relax and feel safe.
“Visual themes have also been enhanced with sound design - the sound design in the internal stairwell, which is festooned with greenery, evokes a forest environment with birdsong. Also, the open fireplace effects have been elevated with the sound of fires crackling and the scent of woodsmoke,” she continues. “In fact, there is sound almost everywhere you go, from background music in the social areas to a gradient soundscape in the working areas - which goes from completely silent focus spaces to nature-inspired sound masking in the open flex areas. We have even designed soundscapes for the restrooms for extra wellbeing and privacy.”
Enabling Efterklang’s sound design is a comprehensive network of Genelec Smart IP loudspeakers supported by 4000 Series installation loudspeakers. Efterklang worked with AV integration specialists JML-System AB to define the best components to achieve the right results. Anthony Berry, VC and Collaboration specialist at JML, explained that it was a joint decision to specify Smart IP loudspeakers.
“The system covers four levels with over 20 individual zones,” notes Berry. “We used the compact Genelec 4420s in all the main zones - 114 in total - except for two event zones in which we used the larger 4430s, since those areas required more power and the extended frequency range provided by 4430s.
“We opted for Smart IP loudspeakers for a number of reasons; firstly, they are active speakers which means that there is no need for amplifiers - this is a huge advantage when you’re dealing with high numbers of loudspeakers, as we were for this installation. Secondly, they are powered over Ethernet meaning there were no long speaker cable runs required and there was also no need to have separate power outlets to each speaker.”
All parties are delighted with the results. “This was a fascinating project, and many parties contributed to its success,” says Berry. “Efterklang provided a great sound design with amazing custom content that is both calming and energising.”
Efterklang’s Margareta Andersson adds: “We’re very proud of this project, and Genelec’s Smart IP technology proved to be the ideal solution for all sorts of reasons, both aesthetic and technical.”

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