Braun Audio 1 The first fully transistorised combined hi-fi system produced by Braun. The transition from valve to transistor components permitted flatter and more compact casing construction - the audio 1 is 10 cm high. The device's 67 cm width was determined by the standard dimmension of a small bay of Ram's shelving system, designed for Vitsœ two years earlier. Vitsœ produced components so that Braun audio 1 and L 46 speakers could be integrated directly into the 606 system.