Yes and no. I came up with a solution that works reasonably well and is still in service:
https://www.audiosciencereview.com/forum/index.php?threads/looking-to-build-a-simple-solution-to-control-12v-amp-trigger.24288/page-2#post-1019792
I was not able to get power out of the USB on the mini...
The new topping E70 dac has a trigger output and they say the dac wakes up from any input. It would be isolated from the avr if connected by optical cable.
If you only need the trigger to provide power during your own sessions, perhaps you could introduce a new, isolated source of power. See reference to a gizmo with its own remote: ASR post
Amazon link
There are a number of gizmos available that may help. Please confirm that you wish to control the pre-amp when then AVR is powered on?
Does the AVR have a trigger output?
Does the pre-amp have a trigger input?
Do you use a programmable remote to which you could add a device to control...
I am sticking with (b) 3.
"How many times will circle A revolve in total?"
Circle A revolves 3 times in its journey around circle B. To claim that the entire journey constitutes an additional revolution, as defined by circle A moving in a curved path around the center of circle B, conflates...
Years back, I had a plug-in electric razor. I used a small device between the razor plug and the wall outlet. It made the razor run faster. I believe it was called a Shaver Jet, but I find no mention of it online. I recall someone said it converted AC to DC, making the motor happier? Do...
Since this has a trigger, I am considering this for my living room TV. The trigger extends the dac as a front end beyond simply adding a volume control, input switch and infrared remote. The trigger - as a simple, reliable power control for an amp - is big for WAF/ease of use.
There are few...