I ask this question because I am running out of rack space and will have to stack something on top of my Cinepro 3kIIse amp. I will put a couple of vhs tapes as a spacer in between the amp and one of the following choices: a JVC svhs recorder; my Sampson SVS subwoofer amp; my Pioneer 606 dd/dts LD (hardly ever used anymore); or should I stack my new Monster 7000 Line Conditioner on top of the Cinepro? Will any of these cause "noise" problems? The Cinepro does not have air vents on top of the unit, but can get a little warm during extensive use. The rack is not enclosed and air circulation is not a problem. Help!! I need help and suggestions. Thanks.