At the same time, Ewald Kienle started to experiment with resonator tubes to improve the sound of the loudspeaker, and he installed the first analogue church organ with resonators in the Catholic Church St. Rochus in Bonn-Duisdorf in 1980.
Ewald Kienle started to experiment with resonator tubes. This was at the same time. This was to improve the sound of the loudspeaker. He installed the first analogue church organ with resonators in the Catholic Church St. Rochus in Bonn-Duisdorf in 1980. This was at the same time.