I've had great success cryoing various types of interconnects including power cords and in each case after a ***long*** break-in period there was definite improvement. I had a conversation with Alan M. Kafton / audio excellence AZ, INC. and we discussed some items you don't want to cryo.
I'm not sure what kind of electronics are inside of the box, but you might contact Alan with that question.
I'm not sure what kind of electronics are inside of the box, but you might contact Alan with that question.