Alcons Pro-Ribbons Floating in Iconic Arctic Cathedral

03 Alcons Audio PRESS RELEASE Alcons Pro Ribbons Floating in Iconic Arctic Cathedral

The distinctive triangular shape of Tromsdalen Church (Ishavskatedralen, or the Arctic
Cathedral) is one of the most recognised landmarks in the Norwegian city of Tromsø. But
despite its iconic status as a place of worship, tourist attraction and symbol of the city, for
many years it suffered from poor sound for the services and many recitals and concerts it
hosts. But all that has now changed, thanks to the installation of an Alcons Audio LR7 pro-
ribbon sound reinforcement system.

Consecrated in 1965, Ishavskatedralen is considered a masterpiece by architect Jan Inge
Hovig. 11 aluminium-coated concrete plates either side of the roof give the church it’s well
known form, complemented at one end by a giant stained glass window and, at the other, a
main entrance in an end wall of clear glass, with a giant cross tying all the elements together.
The church is an important cultural centre, featuring many live recitals. With a programme
peaking at more than 500 concerts in one year, they include the popular midnight sun and
northern lights concerts, which have both become a staple of Tromsø culture.
The most important thing for church sound is ensuring that speech is crystal clear throughout
the main body of the building. For many years Ishavskatedralen had a passive sound
reinforcement system, which made speech sound boomy and muffled.

“The wish of the church staff was to have a sound system that delivered high quality speech,
but also worked well with the many concerts they host. They had grown weary of rolling
equipment in and out for events, often multiple times a week,” says Eirik Haua, sales
manager of Tromsø-based audio specialists Lydproduksjon.

“The process of looking for a better system had been going on for many years, but the ball
really started rolling when folk singer Jardar Hansen performed through an Alcons LR7 pro-
ribbon system at Ishavskatedralen. After hearing the concert, church warden Mogens Olsen
wanted the same sound quality all the time.

Eirik continues, “After further investigation of different systems and brands, it was confirmed
that Alcons LR7 was the best solution for both worship and live concerts.”

Lydproduksjon supplied and installed a system comprising ten LR7 6.5” micro line array
modules, two BF302 double 15” high output subwoofers, and four VR5 5” mini versatile
monitors. The system is powered and controlled by one Sentinel10 (4x 2500w) and one
Sentinel3 (4x 750w) amplified loudspeaker controller. For inconspicuous integration, the
system was delivered in a room-matching color scheme through Architect Color Option.

“The system ensures everyone in each of the church’s 720 seats gets the best possible
sound experience. It was specially produced in a custom white colour to match the interior of
the church, making sure it perfectly complemented the visual aesthetic and did not detract
from its iconic architecture,” says Eirik. “We think it is the optimal solution for the church and
we are grateful that they trusted us to design and install the system.”

Mogens confirms Eirik’s words, adding, “The system delivers pure sound, both loud and
quiet, which fills a tight, clean church space. The main speakers look like they are floating,
rather than hanging. It perfectly supplements the timelessness of the architecture. Although
Jan Inge Hovig passed away in 1977, we know that he would be happy.”