starting equiment that ic cold from being shipped

@bossa   Any advice from manufactures ... good question?

I would open them up and let them acclimate for 3+ days (mainly because of moisture).

My frost knee jerk at the title was just give em hell.

But then thought about moisture. So I agree with with @dekay (and the others to wait)

But if it is sparks off the sock static low humidity then it shouldn’t matter.

"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.

Just stick 'em in the oven at 100 deg F for a couple hours; will markedly reduce any latent humidity and make your cat happier when you set it up for a listen and they take up residence thereon.

The obvious seems to have passed you by. Ask your dealer. Get anything they say in writing, then you can follow this advice and use it as evidence if you need support / make a warranty claim.