stupid question !!!

[CDK]

This is a stupid question

but what is
the little box beside the "speaker" and the tweeter???
http://www.jlaudio.com/evolution/images/enlarged/VR650CS.JPG
what is it
and what is it used for?

:|

[JimJ]

It's a crossover...

http://www.the12volt.com/caraudio/cross.asp

[T3mpest]

Crossovers are used to let the tweeter play the high frequencies and the midbass drivers play the lower frequencies. Think of it as a traffic cop for the preout signal.