Audio stream network comprising a plurality of network components, wherein the network components comprise at least one source device and a plurality of receiving devices (3a, 3b, 3c), wherein the network components are connected with a network connection, wherein the network connection is using the internet protocol, wherein the source device is adapted to provide an audio stream (4a, 4b, 4c), wherein the audio stream (4a, 4b, 4c) comprises at least one channel, wherein the receiving devices (3a, 3b,3c) are adapted to receive one or more audio stream (4a, 4b, 4c) from at least one of the source devices, wherein the receiving device is adapted to receive (3a, 3b, 3c) the audio stream via (4a, 4b,4c) a stream transmission, wherein the stream transmission is transmitted by the network connection, wherein the stream transmission is a multicast transmission or a unicast transmission (5a, 5c), the audio stream network further comprising a decision unit, wherein the decision unit comprises a user adjustable rule and is adapted to decide if the stream transmission has to be a multicast transmission or a unicast transmission (5a, 5c), wherein the decision unit is adapted to instruct the receiving devices (3a, 3b, 3c) to now receive the multicast transmission, whereby the channel and/or audio stream that is/are transferred into a multicast transmission is removed out of all existing unicast transmissions (5a, 5c), wherein the decision unit comprises a sanity unit, wherein network components comprise a user interface for controlling the sanity unit, wherein the sanity unit is adapted for confirming and/or rejecting the decision of the decision unit by a user interaction. wherein the network components comprise at least one source device and a plurality of receiving devices (3a, 3b, 3c), wherein the network components are connected with a network connection, wherein the network connection is using the internet protocol, wherein the source device is adapted to provide an audio stream (4a, 4b, 4c), wherein the audio stream (4a, 4b, 4c) comprises at least one channel, wherein the receiving devices (3a, 3b,3c) are adapted to receive one or more audio stream (4a, 4b, 4c) from at least one of the source devices, wherein the receiving device is adapted to receive (3a, 3b, 3c) the audio stream via (4a, 4b,4c) a stream transmission, wherein the stream transmission is transmitted by the network connection, wherein the stream transmission is a multicast transmission or a unicast transmission (5a, 5c), the audio stream network further comprising a decision unit, wherein the decision unit comprises a user adjustable rule and is adapted to decide if the stream transmission has to be a multicast transmission or a unicast transmission (5a, 5c), wherein the decision unit is adapted to instruct the receiving devices (3a, 3b, 3c) to now receive the multicast transmission, whereby the channel and/or audio stream that is/are transferred into a multicast transmission is removed out of all existing unicast transmissions (5a, 5c), wherein the decision unit comprises a sanity unit, wherein network components comprise a user interface for controlling the sanity unit, wherein the sanity unit is adapted for confirming and/or rejecting the decision of the decision unit by a user interaction.