I finally ordered my BHK 250 last week (very exciting!). While awaiting its arrival, I was reading the manual and saw that it uses 75W while in ‘Ready’ mode (p. iv of the manual). I assume that this is the same as ‘Standby’ mode referenced on p. 1 (if not, please clarify). This is the equivalent of leaving a 75W light bulb on all the time, which I would not consider as “using little power” (manual, p. 1). I understand the sonic benefits of having a standby mode; my current tube amp, which obviously cannot be left on all the time, takes two hours to sound its best. Leaving the power on might also lengthen the lifespan of some components, but I am not sure about that.
Right now I think I will turn off the back switch if I do not anticipate listening again within 24 hours, but I would appreciate comments about this. Is it a reasonable compromise? Any downside? How long does the BHK 250 take to sound good from a cold start?
The specs for the DS DAC and BHK Preamp show power consumption as 30W and 60W respectively, but give no indication of how much this is reduced when in standby mode. It would be helpful to have this information in order to use our equipment in an environmentally friendly way.