Esoteric K-03 / K-01 Leave Power On ?

I have an Esoteric UX-3 and I turn it on a half hour before I listen.  No need to leave it on all the time.

I have a Cary 306 SACD I’m using as a DAC. It has multiple power supplies internally and gets quite warm. In the summertime, I will turn it on a couple of hours before listening, and off when I turn in.
On Friday morning thru Sunday I usually have it on the whole time since I use it often when home. I tend to keep it powered up all winter, less heat and I’m inside more.As an EE in the computer field, It’s usually the current inrush that is most harmful to electronic components.  We recommended they stay powered up constantly for this reason. 

Turn it on the morning you plan to listen to your system that evening. It sounds better after 5-6 hours on, much more organic, even 8 hours on. The key to the sound of the Esoteric is the long burn-in time and power cord. Filters Org and FIR 1.  

Digital should never be turned on it takes one to two days for the digital to sound as good as it normally would.

The act of turning on and off components is much more damaging, and the K01/KO3 will use such a small amount of power you wound't notice any savings. 

Just leave it fully powered on and be happy you are getting the best sound from it.

Dave and Troy
Audio Doctor NJ