"My frost knee jerk..." I guess auto correct is warning me to wait! Krell advised waiting but had to be asked. There was no proactive warning but after reading other sources, I decided that there is a chance of problems and since shipping costs me around 500 round trip, I will wait. Most things i have read suggest that leaving the items wrapped is a good thing as it hinders condensation from forming inside box and plastic wrapping and acclimates slowly. I will wait at least 24 hours and continue to play my toy stereo from Goodwill.