I've been playing around with my kit lately and I have just upgraded my DAC magic with the help of Audio Upgrades, to their level 1 upgrade with the burson opamps and loving the transformation. What I really want to know is how warm your DAC magic runs, I hadn't owned the unit long before I upgrades and can't really remember if the unit ran hot or not. At the moment it is running very warm and I suspect its the addition of the burson opamps which is doing this, but I'm asking for your help so that I can confirm this. I worry that the solder might start melting and something horrible will happen. So does your unit run hot?