I fit a Korg DTR-1000, Ampeg SVT5 and BBE Sonic Maximizer all in one four space rack. I did this by putting in the Ampeg (3u) and the tuner in front, but under the ampeg in the back I put the BBE. thus, my question. Will this cause any heat problems? I mean, everything is basically as tight as it can go and still allow the cables to get through. It sure as HELL beats carrying around my 12u road ready...good lord, I think anything beats that.