The basic principle for successfully building a good loudspeaker is: try it out! Sound tinkerer and math fan Robin Christ also built his own loudspeakers. Despite his extensive experience, he initially created many prototypes before he was able to present a model with a warm sound and "wide stage", i.e. with a strong, room-filling sound. To speed up the design process, the young researcher developed an algorithm to solve the Helmholtz equation using the so-called boundary element method, which he used to simulate sound waves in three-dimensional space. He adapted his algorithm so that it could be run on a computing cluster in order to carry out complex simulations for large loudspeakers in a reasonable amount of time. Christ thus achieved national victory in the field of mathematics/computer science at Jugend forscht 2018.