Brandon,
I am not familiar with the ADP 470's, but I did just install Studio ADP 590's for my in-laws. They came with a tiny little plastic bracket for wall mounting them (not nearly as solid as the QS8 T brackets).

Are the 470's new or are you trying to find brackets for existing speakers?

Otherwise since the Paradigm ADP's do not have top and bottom drivers, what about just mounting a small shelf for each one?

Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1