When I was off work recuperating from my hip replacement I was watching some action move and for some reason there were lots of things blowing up I had the volume cranked up to moderate loud. My wife came home about then and made me turn it down.
I can't imagine anyone has a home system like an Imax sound system. It is a large room with crazy numbers of large speakers. It is like comparing a 60 inch HD TV to that several story tall giant iMax screen. No valid comparison except they are both in color.