Quoted from markmon:Just the sub and its external which a lot of us think is lame.
I have only do the hole speaker up grade on my DE STER WARS . From Pinball Pro . The back box speaker they sent me sounded Thin . The 20+ factory ones sounded better. Used old factory speakers . The Internal was not bad . I only since have used External subs 100 watt or more from pawn shops . make sure you do not disconnect the cabinet speaker if you add a sub . You will lose midrange sound if you do. Wondering why Markmon you think external subs are lame ? I know you have had a lot of pins in your home . I may try a speaker up grade again . It was years ago that I tried pinball Pro maybe they have gotten better.