Quoted from RJL:
I just received my deadpool le and iron maiden premium machines. The LE has 5 1/4" JBL stage 502's in the backbox and the premium has some really cheap 4" speakers. Has anyone tried upgrading to 5 1/4" and is it worthwhile vs just upgrading the 4" speakers?
I have some 4" pinball pro back box speakers I never used but the mounting studs stern provided are not long enough because the pinball pro speakers have a spacer for the leds. Any ideas on how to handle this?
I did add an external powered sub to the iron maiden which dramatically improved the sound, but it still pales in comparison to the deadpool le (also with external sub). The LE still sounds much better so I think upgrading the back box on the premium is the way to go.
Either way, 4" or 5 1/4" I have a bit of a project so I was hoping to learn from your collective experience.
The spacer rings on your Pinball Pro speakers aren't there for the LEDs....they are there so the speaker can be mounted and the spacer ring leaves room for the tweeter that extends out past the speaker's mounting points in the front. The LED lights are just something they threw in there after I gave them the idea to have lights in the pinball speakers.
That being said, those Pinball Pro speakers should mount fine for you in your Iron Maiden Premium. You will just need to get (4) 6-32 male-female hex standoffs that are 5/8" long. Put those hex posts down on the studs that are coming out of the back of the factory speaker plates and then put the speakers with the rings on them with the factory nuts.
As for adding 5 1/4" speakers in a pro or premium game instead of a 4" speaker....that would take a different speaker plate or at the least some heavy duty remodeling (bigger speaker holes and mounting stud's locations changed). You may be able to order the LE Iron Maiden or Deadpool LE speaker plates from a Stern distributor, but I know Stern sometimes limits sales of LE specific parts to confirmed LE owners.
Keep in mind what I have described above is just the mounting aspect of getting the 5 1/4" speakers in there. I have no idea if anything would have to be changed as far as getting the 5 1/4" speakers to work in the games as they should (electronics wise).