Drac,
I’ve recently upgraded my Stranger Things Premium. Following suggestions from friends, here are the items I used.
When you replace the cover plates for the speakers, remove the foam if you want to see the speakers.
Rockford Fosgate 5.25” speakers
https://www.amazon.com/dp/B00BF6HX9E
Combo light kit (the $100 option)
http://www.speakerlightkits.com/5.25-SPIKE-2-Speaker-Plates.html
Color plate (red) (insert your choice here)
http://www.speakerlightkits.com/5.25-SPIKE-2-Speaker-Surrounds.html
Here's a link to my local group where I have more pics.
https://pinside.com/pinball/forum/topic/gulf-coast-pinball-club-se-texas-sw-louisiana/page/104#post-6262796
Personally, I did it for the look as much as anything. Since your asking about sounds, I did add the pinnovators kit and a sub last week. All together, the game sounds really good.
I hope this is helpful.
Chris
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