You're quite right Kai. The cd player has more clearance than you would think though. The fascia of the Kenwood stands proud of the top of the case by about 5mm and I have already built up the feet on the cd player. However, your point is well made and I will build up the feet another few millimetres. Every little helps. I can't put the cd under the amp as it is much shallower. The amp also has plenty of ventilation from the rear of the top plate where it is not obscured by the cd player.