For direct on the analogue input of the SA30 you just press direct on the remote (next to the amp button) you’ll see it toggle on / off on the SA30 screen, it needs to be on for the AV input to bypass all processing including Dirac on the SA30.
I was thinking change the SA30 simply because whichever remote I change I’ll have to teach my harmony all the new codes and I suspected the SA30 would be less codes to teach the SA30..
Not sure about the trigger, I don’t see even a trigger output, let alone an input. What I’d do is if I can change the remote codes, then I‘d just get the Harmony to turn the AVR on and also turn on the SA30, although haven’t spent enough time with it yet to work out how / if it can be done.
Yes app is IP.
I think for Dirac, set the SA30 analogue input to Processor Mode, set gain / volume fixed level for PM to 68’ish, then run Dirac on the AVR550 for AV as you normally would, it should run pretty similar to before with no SA30. Then for the SA30 when listenending to music Sources, run Dirac for your two channel stuff (if you want) and assign it to the inputs used by music sources.. Some people don’t particularly like processing on music, I don’t normally, but want to give it a try. When I tried it on the AVR550 is was interested to hear what it did, it was different, better in some ways, but not in every way and I ultimately preferred an external HiFi amp anyway. I want to give the SA30 and Dirac a go for the hell of it, so have an open mind on the results..