The portable speaker Oslo has a very neat finish: its frame is a molded aluminum piece, the case is it made of polycarbonate and custom made Kvadrat textile grilles.

From a design point of view the Oslo loudspeaker consists of 4 loudspeakers: 2 Vifa 50 mm units with aluminum dome and neodymium magnet and 2 Vifa 65 mm units with flat sandwich dome and neodymium magnet. Back-to-back mechanical assembly in a balanced strength configuration, supported by 2 passive radiators. Add to that a pure-path, crossover digital amplifier and a DSP optimized for low distortion and high accuracy.