starting equiment that ic cold from being shipped

Think about car audio components.

That's a good point but both Krell and other google responses made me doubt the safety of turning on ice cold equipment.  Condensation could take out boards say some google posts.  It's amazing how cold it stayed the last time.  After 12 hours the amplifier still felt like a block of ice in my living room.

I have always allowed my equipment to warm up before using it.

Unless your home is a swamp, I can't see how condensation would be an issue. Most homes in the cold air of winter have low humidity.

B

Yes, they do but when a cold object meets warm air moisture forms.  Just look at windows.

Yes, let it come to room temperature with low humidity. May want to pop the top to make sure any condensation evaporates with great airflow. Good luck. 😉