Is the volume actually logarithmic or is it linear? Here is what I want to know...Until I get better speakers, everything but my mains can only handle 100W (mains 150W) and I am also getting a 770, so if the scale is actually logarithmic, I should only have to worry about going from +7db to +10db that would possible damage my speakers (3db is a doubling of power). Anyone have a good answer?