I have a weird question: there's a TAF at my local bar, and the ramp's diverter coil makes a loud, dry snapping sound when it activates. Kind of like a knocker that's 100% treble, it's pretty hard to describe.
I finally bought an Addams today, and since I've an acquired taste for this sound, I'd like my machine to sound the same, but I have absolutely no idea how to achieve this.
Any clue?

Thanks for the answers! Any idea how to adjust it so that it slams the cabinet real good?

One other thing: several solenoids are too powerful; the flippers send the ball flying if I hit some target (but most of the miss the reinforced part in the back) or the left ramp, and the thing scoop kickout actually makes the ball jump a little. How can I make them a little softer?

Edit: I also noticed that getting an extra ball fires the knocker. It's the first machine I see doing this, and I don't really see anything related in the menu.

Edit 2 (sorry, I'm forgetful and tired): the bookcase has been damaged and somewhat repaired, but not always even with the playfield so I'll have to change it. Just to make sure: it's not supposed to be somewhat loose when you hit it, is it?