How many Xeo Transmitter / Hub / Connect can I use?

Dynaudio recommends using one Xeo Transmitter / Hub / Connect. 

Yet, thanks to the channel Id setting of the Xeo Transmitter / Hub / Connect (A, B, C), up to three Xeo Transmitter / Hub / Connect can be used simultaneously. As all Xeo Transmitter / Hub / Connect use the same wireless frequency and Xeo sends an uncompressed music signal with high data density, the risk of sound dropouts and functional restrictions increases, depending on the frequency utilization (by other routers and devices), while the range is reduced. 

With multiple Xeo Transmitter / Hub / Connect, the individual units should be placed apart from each other if possible.