I've never used those 12 V trigger things on gear before. I can see with the APC in the setup, where leaving the preamp/processor in standby mode and using its trigger to start up the rest of the system would be of benefit.
_________________________
Main system:
Integra dhc 9.9
Threshold SA/4e pure class A
Emotiva XPA-1 (2), XPA-5
(2) Threshold S200's
Thiel 3.6 main speakers
(2)Velodyne F1500r subs
Polk RTI28 surrounds
B&W HTM center
OPPO BDP-83 universal player
Samsung HLT6187 led DLP