I was an MECP certified individual and installed (professionally) stereos for several years, you will excuse me if your experience or knowledge trumps mine.

All I am trying to do is warn a member that he is going to want to avoid that area for an amp nearly 5x the power, unless he adequately tests the temperature while running in this space. When I did my multip amp system in the XF, I dit not consider this area because of these concerns.

To tell someone, 'well the engineer made it work for 200W (and it still doesn't stay very cool) but I am sure 900W will be fine' is irresponsible IMHO

Done trying to help.