Is it Safe/ok to Plug Amplifier into Processor

I recently got some used separates, I have a Outlaw 950 and a adcom gfa 7400. Now unfortunately the Adcom doesnt have remote capabilities, therefore I was thinking of plugging it into the Outlaw. Now my question is if it is safe to plug a power amplifier into the processor to allow for shut off when the Processor is turned off.

David