It's that time of the year: World Day for Audiovisual Heritage 🎶 For almost 100 years now, we've been concerned about good sound, whether recording or playing back. Swipe through the gallery to see a few gems from back in the days 🎤📻 #beyerdynamic #WDAH #audio #WorldDayforAudiovisualHeritage #sound #heritage #recording #playback #DT990PRO #eugenbeyer