There is no reason to use a trigger, the auto sensing feature works perfectly unless of course you have the volume at inaudible levels. I've got 3 of these and have been using that instead of having to deal with triggers and their setup. I highly recommend. Still amazed at how cool they run - and I have mine in a cabinet. Oppo 103 gets warmer then the amps. Let me know if you have any other questions.
RIP Cricket - my pug and little buddy Jan. 10, 2017
Panasonic 60VT60 (cal by DNice)
Ascend's with RAAL, Love my PSA v1800 and a 7.2.4 speaker config, Oppo 203 w/ 2500+ blu-rays and growing. Yes I still have HD-DVDs too.