"the evil monster"
I have a Monster HTS 3600. I invested in one after lightening (or a power outage during a summer storm - I'm assuming lightening somewhere on the lines) fried my bigscreen TV. Ever had to get a bigscreen (rear projection) TV fixed?? Its a dollar a minute
to get a repair guy out, and $50 as soon as he shows up at the door. I am not so sold on the sonic benefits, I didn't hear anything dramatic. Not saying they don't exist, just saying I didn't notice any, except when my wife turns on the blender, my TV picture does not go staticy (sp?).
Just FYI, the voltage in my house swings about 13V on average. It'll be 120V or so at peak, and as low as 106-107 during high usage periods (winter mostly).