Besides the acoustically highly effective perforated panels, acoustic plasters can also be used to significantly improve room acoustics through wall and ceiling surfaces. Each of these techniques can in itself offer a highly effective acoustic solution. Combined, they are an unbeatable team in terms of aesthetics and sound absorption. So far, however, working with conventional plaster base panels was more like using smooth gypsum plasterboards than a modern installation technique. VoglToptec works quite differently and, above all, without requiring any filler.