I need to mount my genz benz gbe 600 in a rack case. But the cooling fan is mounted on the side, and I'm concerned that it won't get enough air if its in a rack case. I know this model's been around for awhile, and that its probably not a problem. But I love this amp and just want to make sure. Anyone ever have a problem with this setup? Do I need to cut holes in the side of the rack case for ventilation?