A sound system for acoustically reproducing Q electrical audio signals (wherein Q = 1, 2, 3,...) and establishing N sound zones (wherein N = 1, 2, 3,...), in each of which reception sound signals occur that provide an individual pattern of the reproduced and transmitted Q electrical audio signals, the system comprising: a signal processing arrangement comprising at least one multiple-input multiple-output system (52, 53, 54, 56; 61-68, 71-74) and configured to process the Q electrical audio signals to provide K processed electrical audio signals; and K groups of loudspeakers (69, 70) (with K = 1, 2, 3,...) that are arranged at positions separate from each other and within or adjacent to the N sound zones, each configured to convert the K processed electrical audio signals into corresponding K acoustic audio signals; and a monitoring system (31-33; 39; 44) configured to monitor a listening position of a listener's head relative to a reference listening position; where: each of the K acoustic audio signals is transferred according to a transfer matrix from each of the K groups of loudspeakers to each of the N sound zones, where they contribute to the corresponding reception sound signals; processing of the Q electrical audio signals comprises filtering that is configured to compensate for the transfer matrix so that each of the reception sound signals corresponds to one of the Q electrical audio signals; characteristics of the filtering are adjusted based on the identified listening position of the listener's head; and the monitoring system (31-33; 39; 44) comprise a visual monitoring system configured to visually monitor the listening position of the listener's head relative to a reference listening position; characterized in that the visual monitoring system comprises two optical sensors (31, 33), of which one is disposed above the listener's head and the other is disposed in front of the listener's head. a signal processing arrangement comprising at least one multiple-input multiple-output system (52, 53, 54, 56; 61-68, 71-74) and configured to process the Q electrical audio signals to provide K processed electrical audio signals; and K groups of loudspeakers (69, 70) (with K = 1, 2, 3,...) that are arranged at positions separate from each other and within or adjacent to the N sound zones, each configured to convert the K processed electrical audio signals into corresponding K acoustic audio signals; and a monitoring system (31-33; 39; 44) configured to monitor a listening position of a listener's head relative to a reference listening position; where: each of the K acoustic audio signals is transferred according to a transfer matrix from each of the K groups of loudspeakers to each of the N sound zones, where they contribute to the corresponding reception sound signals; processing of the Q electrical audio signals comprises filtering that is configured to compensate for the transfer matrix so that each of the reception sound signals corresponds to one of the Q electrical audio signals; characteristics of the filtering are adjusted based on the identified listening position of the listener's head; and the monitoring system (31-33; 39; 44) comprise a visual monitoring system configured to visually monitor the listening position of the listener's head relative to a reference listening position; characterized in that the visual monitoring system comprises two optical sensors (31, 33), of which one is disposed above the listener's head and the other is disposed in front of the listener's head. each of the K acoustic audio signals is transferred according to a transfer matrix from each of the K groups of loudspeakers to each of the N sound zones, where they contribute to the corresponding reception sound signals; processing of the Q electrical audio signals comprises filtering that is configured to compensate for the transfer matrix so that each of the reception sound signals corresponds to one of the Q electrical audio signals; characteristics of the filtering are adjusted based on the identified listening position of the listener's head; and the monitoring system (31-33; 39; 44) comprise a visual monitoring system configured to visually monitor the listening position of the listener's head relative to a reference listening position; characterized in that the visual monitoring system comprises two optical sensors (31, 33), of which one is disposed above the listener's head and the other is disposed in front of the listener's head.