Yes you can. There is no theoretical limit to the number of network players that you can connect to a single UPnP server though you may be constrained by the strength or robustness of your network or by the available processing power on the UPnP server. In the case of NAS drives this can be quite low and you find you can connect only a small number of network players reliably.Note that Naim network players do not support synchronisation of audio across a number of players. In order to achieve this you may wish to consider a more advanced Multi-room system using StreamNet-enabled hardware from the Naimnet range