What is the name of your system.

Like Sean, I just refer to 'em as rooms. Actually, I kind of refer to all the various components as "gear" whether it be a a pair of headphones or an amplifier. It's all gear that makes music. The gear in the family room, gear in the bedroom, etc.. Since most people think my hobby is bizarre, I find if you walk around looking pensive and mumbling to yourself people will think you're eccentric rather than insane.

We have always called it "Mother." I used to remember why.

I too use "the rig"; however, this is also how I refer to my manhood.

I usually refer to it as "the reference system" or "the Krell". I am sure my wife thinks of it as "the money pit" or "the boat" since I could only afford one. Sometimes we refer to the room it is in like they say "the Theater" but I say "the listening room".

My friends like to gamble a lot and refer to their habits as their whore. According them, everyone has a whore, a term which stands for a hobby or a habit that constantly drain your wallet. Since I don't gamble, they refer to my system as my whore.