So I have a Onkyo TX-NR686 connected to my Kasa HS-300 as part of my entertainment system and have noticed an interesting behavior. (It sits on it’s own Kasa outlet, so the detection is not a problem).
First the observation:
Whenever I turn it on, it consumes ~55W for exactly 30minutes, then drops to ~38W for the rest of the session. There is no change in volume, input selection, or anything else. Input is a “chromecast with Google TV” dongle connected to one of the HDMI ports and HDMI out is connected to the 4k TV.
Here is the chart for two successive nights, but it is always the same!:
I wonder if anyone can explain this behavior. I am sure there is a reason. Why does it work 17W harder for exactly the first 30 minutes after coming out of standby? (If I turn the receiver to standby and on again, there will be another 30 minutes of 55W). Obviously it is programmed to behave this way, but why??
Note that the specs give a power consumption of 580W (I guess with both zone at max volume!) and a “no-sound” power consumption of 60W. I am nicely below that.
(Sorry, not sure where this post belongs (Stories? Detection? Technical?). Feel free to move it to another area)