Hiya! I've got a Cort Artisan A5 lying around from around 2000/2001. From what I read this bass should have an active/passive switch. I know the new ones actually have a switch, but older ones should have a push/pull knob. Now here comes the tricky part. I've pushed and pulled everything I can push and pull, and nothing seems to click or do anything. I know the bass can't play with an empty battery, I tried that. I also can't find any flat-EQ setting or something like that. Does anyone have more info on this? Is it possible the active/passive pull-knob was introduced later, after my model was made?