Abstract: A coating device (10) coats a metal strip (12) in a melting (14) of a coating metal. For guiding and deviating the metal strip (12), a guiding device (16) is arranged in the melting (14). The guiding device (16) is configured as a magnetic guide with at least one electric guide magnet for the contactless guidance of the metal strip in the melting (14). Thereby, the use of rolls, shafts etc. for guiding the metal strip is avoided so that the coating of the metal strip (12) with the coating metal is of a better quality and has the same quality on both sides of the metal strip (12).

Abstract: The invention relates to an audio reproduction system with an audio signal delivery device (PC, S, VCR) to supply an audio signal (s, r), a data delivery device (S, A) to supply data (d, rd) for control and/or monitoring purposes, a mixing device (M) to mix the audio signal (r), and data (rd) before these are reproduced in combined form, at least one loudspeaker (L1-L5) to reproduce an acoustic sound signal (sw+sd), a receiving device (MIC, C) to receive the sound signal (sw+sd), and a receiver-side data processing device (PC, C) to process the data (sd) contained in the sound signal (sw+sd) and to trigger corresponding actions to be performed.