Description
When upgrading the cabinet speaker in my Stern Star Trek, I ran into a problem I’m sure others have seen: the upgraded subwoofer’s mounting flange was too thick for the factory studs to fully engage the nuts. The speaker would almost fit — but not securely.
Rather than forcing it or swapping hardware, I designed a simple spacer ring that bolts down using the original cabinet studs. The speaker then mounts directly to the spacer with screws, giving you full thread engagement and a rock-solid install.
End result:
- Proper hardware engagement
- No stress on studs or speaker frame
- Secure mounting with no vibration
- Noticeably improved sound performance
Available in 6-inch and 8-inch versions, sized specifically for pinball cabinet installs. Clean, simple solution that just works.
Designed and tested in a Stern cabinet, but applicable to many pinball speaker upgrades that suffer from shallow stud depth.
Designed by Top_Fuel_Friday. Licensed for production and sale by Nimr0d Pinball.
While you’re here, add a set of our Playfield Stands for no additional shipping cost: https://nimr0dpinball.com/product/non-marring-playfield-stands-free-us-shipping/




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