William/Bally WPC Dual 4" Speaker Mounts

thingiverse

If you do not want to cut up your original speaker panel in order to have 2 X 4" speakers vice the tweeter on right 4" midrange on left set up that is in WPC games this will adapt the tweeter T nut mounting location of the tweeter to a 4" speaker as is on the left. The speakers used and shown on TZ are https://pioneer-mea.com/en/products/ts-f1034r/ This is a bit of a trade off in sound since the hole remains the same size as the tweeter on the right but retains the ability to return the game to it's factory form in future should that be desired. I have pushed the speakers back a bit due to using the original hole to get the cone some breathing space. If you use this mod then carefully check the clearance between your boards and the back of the speaker magnets. I found there was sufficient space with 2 original 4" speaker used but if you use other speakers you may find they are deeper so be aware of the depth of speaker you are choosing to use these adapters and double check mounted clearance before powering the game on. Screws are required are 8 x 32. They are intentionally snug to thread so they don't rattle loose. I also recommend 100% infill for strength. In the event you want to bore out the hole I've also provided a hole saw centering jig to start the bores from either side of the bore. In addition to the frames that use two of the original WPC speakers found on the left side of the panel only I have also created files for use with high efficiency 2-way Pioneer TS-F1034R 4" speakers. These are low profile 4 ohm speakers which are highly praised for the price / performance in this mid/high freq type of speaker. This setup works great with TILT!Audio https://tiltaudio.com/