How do I test my home theater to see if it can do "Reference Level"? #1 What is reference level exactly? (And does "Bass" have a different Reference level? If so How do you test for it?) #2 How is it measured and what material is used to assure your theater is doing it? (I have a Radio shack analog meter, if that helps me?) #3 I also have a Video essentials DVD but I haven't opened it yet.....Does it have anything on it, other than just matching the speaker outputs?