The 8x8 Software Dante License (included with Core 110f processors manufactured with version 8.3 or later) uses eight channels but only four streams. Each transmitting microphone or device produces a separate stream. Depending on the mic or device and its settings, that stream can have one or two channels.
For example, if you use four single-channel mics or devices, these four streams equal the capacity of the 8x8 Software Dante license, even though the channel count is only four.
For a higher channel capacity, order and install the SL-DAN-16-P, which is the 16-channel Software Dante license.
Refer to the Q-SYS Help for more information, including details on channel and stream usage: