Do your amps ever get real hot when playing with the hatch shut? Do you have fans on them, and if so do you have any pics?
If I am playing at 3/4 volume or more for long periods 2hrs...then they do get hot...yes they have fans on them, but it does help to barely crack the hatch...here are pics...fans are underneath the amp...also, this is when I had the Xantrex unit....blew two of those up, so I switched the Cascade...
http://www.***boat.com/image_center/...CT0106-med.JPG
http://www.***boat.com/image_center/...CT0080-med.JPG