just a couple of questions about an ipod 5g equalizer

[illuzion]

hi, rockbox people
the questions are:
in the graphical eq, you can adjust 3 things, the gain(volume), frequency and Q...

just wondering, what is Q?

also, does the equaliser fully work, i had a 4g colour last year till it got stolen with rockbox in it and had the eq set to match my car, ive been having a hard time setting up the equaliser to match up to my car with my 5g stupid theif stole my perfect 4g from my house...
(a brothers friend)

thanks for your help.

[RotAtoR]

Q is the width; the higher, the narrower range of frequencies affected.

http://en.wikipedia.org/wiki/Equalization_filter