Sound only on one speaker...

I have no idea how it happened, maybe one of my cousins tampered with my mac again

Anyhow, the sound is imbalanced and only generates from the left speaker.

Where do I go to return it to normal?

EDIT: Whoops, sorry, I found out where now...

hehe neye:

that good old search function did you good.

Or he just found it himself via system preferences\sound\output.