The Finnish National Opera and Ballet has invested in a Prism Sound Dream ADA, bringing versatile connectivity and high-channel-count audio conversion to the prestigious performing arts venue in Helsinki. Sound designers Erno Hulkkonen and Juha-Matti Vuo explain how they oversee an expansive and varied production schedule that includes traditional acoustic performances, sound-amplified musicals, and streamed content.
“Our productions span a wide spectrum,” explained Erno. “At one end, we have fully acoustic ballets like Swan Lake, where there’s no amplification or effects. On the other hand, musicals like The Phantom of the Opera require extensive sound reinforcement — up to 80 microphones in the orchestra pit, 50 wireless channels for performers, plus sound effects and returns.”
“The technical demands change completely from one production to the next,” Juha-Matti added. “It keeps things interesting. Most of our operas and ballets are now streamed, and we’re also responsible for studio work, podcast content, and recording dialogue for performances.”
The opera house comprises a 1,300-seat main auditorium, the flexible Almi Hall (200–500 seats), a full rehearsal hall capable of multitrack recording, and numerous studio and rehearsal spaces. The audio team handles all live, streamed, and pre-produced content, including managing internal video monitoring for stage and orchestra communication.


