@kully560
i don’t understand why you feel a standby mode is important (if it is in fact something different than just powering down the whole unit via an on-off switch)?
even if the audio gd dac runs hot... so you just shut it down when you aren’t listening
what am i missing?
fwiw - denafrips dacs when plugged in to the wall socket, will show a standby l-e-d as 'on'... not sure what internal components are left running and active though...