Complex sentence: 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.
Split into simpler sentences: At the same time, Kienle started to experiment with resonator tubes 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.