starting equiment that ic cold from being shipped

3 days open/unwrapped just as a safety belt.

The unknown is how much moisture is trapped inside the sealed package, thus my suggestion to open it up to air for such a long period of time.

Maybe open for 24 hours, then placed in drier room that gets less heat (for as long as you can stand:)?

I just measured our wall oven and neither of your Krell's would fit.

DeKay

Hello,

I would open them up and put the components upside down if you are worried about condensation. If it does form and drip it will be at the top of the components where there are no electronics. I would leave them that way for 24 hours to be safe. Once they get acclimated to the room you can set them up and put in standby. This will slowly warm things up. After a few hours turn it on and leave it on for 24 hours to finish charging up the caps. After all that you should be good. Some of these components can take 200-500 hours. So you will definitely be drying it out. I hope this helps. 

Some funny responses. I once blew up an older TV with a picture tube turning it on when I had just taken it out of my garage in winter. It arced, smoked & made some horrible noises in its dying moment. Picture didn’t actually implode which might have been worth the whole thing - it was a old piece of junk. 
 

Now I know better & if I something is cold, I remove from it’s box or boxes & let it sit at room temp for at least 3-4 hours which should do it. Like others mentioned,  Condensation is the cause. 

There is no such thing as a “sealed” amp. At best, a top panel might have a bit of foam to damp it a tad from vibration. Otherwise, any moisture will be present. It certainly isn’t necessary to open anything up, and I highly doubt the conversion of moisture would result in a dripping amp. But as mentioned, it’s just a smart thing to do to wait. This is assuming the amp was below say 40° or so. Much warmer and it is doubtful it would be an issue. Sub freezing? Without doubt let it warm up for a couple of hours. No worries.

@feldmen4 Thanks for the gentlemanly apology Matt, but I took no (zero) offence.
And your expertise in the field is seeming more helpful than not..

@bossa

"My frost knee jerk..." I guess auto correct is warning me to wait
…

I was thinking condensation, so it is either auto-correct…
or
Maybe I pictured it being so cold that the condensation frosted up like a very cold drink?

If it was an auto-correct, then it must be the latest release of the auto-correct s/w, as it got it exactly right.