Abstract: An audio arrangement with a plurality of audio devices and a central device. A unique address is assigned to each audio device of a basic set in a data environment so that the central device can selectively send messages to the audio devices of the basic set. The central device includes a data-technology selection area for a selected set of audio devices from the basic set, and a communication module for activating a notification mode of the audio devices of the selected set. Each of the audio devices includes a human-machine interface and are configured to send a notification message to the central device in the notification mode when the human-machine interface is actuated. The central device lists the audio devices of the selected set in a list area in the order in which the notification message is received at the central device.

Abstract: The invention relates to a sound reinforcement system (400) comprising a loudspeaker (130) and two audio amplifiers (410, 410?), wherein: each audio amplifier (410, 410?) is equipped with an output relay (214), which extends to an amplifier output terminal (116) of the associated audio amplifier, as well as a ground output terminal (118); each of two terminals of the loudspeaker (130) is connected to one of the amplifier output terminals; the ground output terminals (118) of the two audio amplifiers (410, 410?) are connected to one another and/or to ground. The invention also relates to a method for operating a sound reinforcement system (400) of said type.

Abstract: An audio arrangement with a plurality of audio devices and a central device. A unique address is assigned to each audio device of a basic set in a data environment so that the central device can selectively send messages to the audio devices of the basic set. The central device includes a data-technology selection area for a selected set of audio devices from the basic set, and a communication module for activating a notification mode of the audio devices of the selected set. Each of the audio devices includes a human-machine interface and are configured to send a notification message to the central device in the notification mode when the human-machine interface is actuated. The central device lists the audio devices of the selected set in a list area in the order in which the notification message is received at the central device.