When your amp cost over $5000.00 and was state of the art in 1980 ... and you presently have it safely tucked away as a spare.
You know you're an audiophile if--
You just got a pair of speakers you can barely move yourself (inverse proportionality with age probably too)
The first house you bought cost less than your current stereo investment (ditto)
You have boxes of cables with which you don't know what to do
The first house you bought cost less than your current stereo investment (ditto)
You have boxes of cables with which you don't know what to do