I have personally been in the same situation, frigid amp, and went one more step
and put it a garbage bag and sealed it and YES waited four days which is when it felt like room temp.
barts hates moisture and electronics agree...
Regards,
barts
starting equiment that ic cold from being shipped
Is it a real thing that you court problems if you turn on an ice cold amplifier or pre-amp without waiting 24 hours for temperature to rise. I have long awaited Krell FPB and KCT shipping tomorrow, It's single digits in the Midwet. Should I wait a full 24 hours for the equipment to warm inside before introducing any electricity into the components?