Problem: Have a Line Six Spider IV 150 W amp and yesterday while playing at church the amp started smoking from the left side (facing the amp) turned it off and unplugged it since it was smoking….later tried to turn it on…nothing!   Question: Do you have any idea what happened? I bought it in Nov 2012 and it has being working fine. What would repairing the unit will look like ($)?   ​PS. I did have a monitor connected to one of the out 1/4 jacks to hear my guitar while playing. I d