As you are adding in a 12V trigger.. I an wondering if you can give me some info about that implementation.
Is the 12V DC present all the time that the amp needs to be powered on, an when the 12V cuts, the amp powers down to it's standby state?
I am wondering as cooling is a big problem for my receiver. I was thinking as a 80mm computer fan doens't really pull that much power. Would you be able to run the 12v fan off one of those triggers? If it was getting the 12v constant when the receiver is powered on, then you could easily use it to add in a small fan to the case to cool down the unit.
Just thinking out loud for myself.
There are several ways we can achieve this.
a) constant 12V feeding to power on the amp and when the 12V is no longer presented, it shuts off the amp.
b) attached a mic and set a voice command to turn on the amp. I know it's a bit cheesy but heck it's hand free operation and for that I approve!!
See sample video www.youtube.com/watch?v=SThR-jyoplk#t=203
As for the 12V, think of it like you are using a 120V to 12V adaptor inside of the amp. (I am using RS-15-12 http://www.meanwell.com/search/RS-15/RS-15-spec.pdf
) You are free to select the proper size adaptor (1A,2A...etc) to power off your fan or whatever you need that require 12V to operate.
Hopefully this answers your question.