does any r2r ladder dac have standby power mode?


if anybody can help me who has one .I am looking at the audio gd r8 mk2 and the denafrips pontus or venus .do these dac have a standby power mode thanks kully
kully560
I was not worried about power! some dac like bryston have a standby mode ! it was just a question, why do you have second world problems yeesh PS  audio gd runs class A on power supply HOT if you do not know
Well, don’t i feel silly.  What was I even thinking?  Clearly you’ve got a handle on this, so enjoy. 
@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...

I do not have any of these dacs and was just wondering what they did as far as heat swing from a cold start to running hot . also how long it takes to get to a full blossom sound , longevity of parts ? heat kills electronics but class A sound the best. I do not want to leave it on 24/7 so I was just looking for maybe an option in these r2r dacs as there is no details I see in the audio gd and the denafrips sites as I thought maybe the owners would chime in.  thanks for the replies