You know you're an audiophile if--

You think live music events aren't true to the recording and don't sound 'open' and 'musical' compared to your system.

u can't listen to music in a car or if conversing w/ someone or in mono or in the daytime.

you tweak your friend's system
while he is out of town...

You sit for hours in infinite bliss listening to music just to hear what might happen next while all your ADD friends are out twittering.

you spend an excessive amount of time, listening to music, buying and selling components, and talking about the hobby.

what constitutes "excessive" is determined by a panel of psychiatrists or psychologists.

the hobby can be a disease if one neglects other important activities of living.