Trigger out is WHEN?

[jojohohanon]

I need a trigger for my sub, which seems to have a faint undiagnosable hum.

I tend to leave my devialet (200 expert) constantly on. 

But I want the sub to be triggered only when playing music. 

When does the Expert 200 send the trigger? On power on, or on actual music playback? 

I would like the latter, but want confirmation that it works before I manufacture the non-standard trigger cable.


thanks!