Lattley I've notticed by kicker comp r is not as strong as it used to be. I have it In a sealed box but I can feel a bit of air coming out of it around where the sub mounts. Is there supposed to be air coming out or is it normal. I've mounted a few different subs in the box so there are unused screw holes in it. Thanks for the help.

 

I'd turn it a little and use new holes.Also you can replace the foam around the back of the sub. No air should be coming coming out of the box. You might be feeling the air that the sub is pushing. Sub's do get tired over time.

 

Since it is a sealed box, no air should be coming out of the box.