Mar 9, 2010 #1 C costa New member Joined Dec 13, 2008 Messages 12 Reaction score 0 Points 1 What is their purpose and do i need one in my car?
Mar 9, 2010 #2 L LadySmythe New member Joined Mar 9, 2010 Messages 1 Reaction score 0 Points 1 Finds the balance between bass and treble on a car radio.