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Audio & Communications

Wharfedale Pro solution supports Unspunnen Festival

Izzy KingtonBy Izzy Kington31st October 20233 Mins Read
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outdoor festival arena with seating stands and backdrop of mountains
Unspunnen Festival 2023

A solution based on Wharfedale Pro’s WLA-112 line array loudspeakers was chosen for the delivery of music and live commentary at Unspunnen Festival in Switzerland.

Held in Interlaken, on the slopes of the Jungfrau, Unspunnen Festival is a celebration of Swiss traditional dress and culture. Featuring historic games, wrestling matches and traditional music, the festival attracts revellers from across the country. Event technology provider Stagepro Veranstaltungstechnik consulted with local Wharfedale Pro distributor Sacher Music to select a versatile audio system.

A solution based on Wharfedale Pro’s WLA-112 line array loudspeakers was chosen, and the design of the system was undertaken in collaboration with Wharfedale Pro applications and solutions manager Alex Lane. “The primary scope for the system was speech intelligibility and a predictable but even coverage of all seating areas,” said Lane. “The main challenge of the space was having no overhead truss to deploy flown speakers and the largely spread-out nature of the arena. Another key goal was to not impact the viewing of the event itself.”

outdoor festival arena with seating and loudspeaker
Unspunnen Festival 2023

The festival grounds featured four major grandstands with almost 4,000 seats encircling the central performance stage, for a total audience of 16,000 people. “The entire system was designed using EASE Focus 3 acoustic simulation software to the client’s requirements,” said Lane. “This ensured that setup and installation were quick and easy, with no surprises on event day.”

To provide intelligible audio for the event, 20 WLA-112 loudspeakers were deployed, driven by five DP-4100N power amplifiers including redundancy. Each grandstand was installed with five WLA-112 elements, mounted on low pole stands at a +2.5° upward angle, to deliver smooth coverage and sonic clarity across the entire audience. Furthermore, the system utilised the built-in Dante networking features of the DP-N amplifiers.

outdoor seating with loudspeaker
Unspunnen Festival 2023

“Due to the exceptionally even polar pattern and linear phase response of the WLA-112s, the system could cover the audience areas from below, with sonic consistency moving from zone to zone and importantly, minimal impact to sightlines during the event,” said Lane. “Using DP-N series amplifiers with Dante networked audio also allowed localisation of amplifiers to the four largely spread-apart areas, reducing copper cable lengths while still allowing full system control from a single point.”

“The WLA-112s delivered superb quality at a very good price,” said Markus Malther, owner of Stagepro Veranstaltungstechnik. “With the DP-N series amplifiers, we were also able to use fibre optic cabling which made the on-site setup quick and practical.”

Regarding the range of the WLA system, Malther said: “Someone in the audience was looking for the subs, but with the full range characteristics of the WLA-112’s and the system design we did not need any!”

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Izzy Kington

Izzy became editor of Auditoria magazine in 2018, having previously served as assistant editor on the title earlier in her career. She is also the editor of Business Jet Interiors International and Railway Interiors International. Over the course of a decade as a business-to-business magazine editor, Izzy has covered everything from airline catering to car safety technologies, autonomous vehicles and business aviation airports. Outside of work, Izzy loves watercolour painting, live music and travel.

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