It is possible to connect 2 pairs of AS10's in one zone, but this will require an additional PS10 power supply. The configuration is as follows:
Connect first the AS10 to a run of CAT5 from the AH10 hub
From the CAT5 output on the 1st AS10, run a length of CAT5 to the CAT5 input on the 2nd AS10, but do NOT connect the brown and brown white wires.
Connect a PS10 to the 2nd AS10 (there is a socket on the AS10 for this).
Connect the passive speakers to their active counterparts.