I've got this amp in open air and the top is so hot, I can only put my hand on it for 5 uncomfortable seconds. It's been on idle and it's that hot. This is my first big amplifier so I am not sure if this is normal or not, but I'm thinking it is not. Can anyone confirm that this is normal or abnormal? If it's abnormal, is there anything that I can do to avoid sending it in for work?

Thanks!!!