Does the PV have an insert on each channel or the mains/monitors?
Does the destroyer have a mic input?
There are a few ways to hook them up but it depends on your system.
I just looked at the system, it doesn't look like it has any way to hook it up other than to plug the mic into the unit. I don't think you can do that with that unit though. There are ones from Sabine that a mic can be plugged into.