Tom,
I agree with Al regarding the attenuators, Rothwell vs Harrison Labs and for the reasons he gave. They aren't expensive so you may want to get several different ratings to see which provides the desired level of reducing db (excess gain). For example 4 db reduction may not be enough and 20 db decrease could be too much. These devices are pretty transparent and shouldn't alter the sound quality. I'd shoot for a level that allows you to listen at your typical levels with the VC near or at the 11AM to 12 noon position.
Charles