We have had a number of loudspeaker customers complain that the speakers don't work in extreme cold because the ferrofluid freezes. Yes, this is a problem that can rip your drivers apart if you take a speaker that's been sitting at -30C and try to instantly get loud sound out of it. When they are outdoor speakers, we recommend a small conditioning signal of low wattage, nothing that will make the coils move, for a few minutes, just to warm up the innards and get the fluid back to being fluid. It may take a short while to get the sound up to normal, but these are the things we have to do with climate change.
I imagine the same holds true for the electronic components. Nothing works as it should when it is as cold as a stone. Give it some time to come to room temperature to avoid the possibility of damaging components.
