Scale Trains Universal #3
 
This is a drop-in speaker for Scale Trains GP30 and SDL39 locomotives. This speaker provides a deeper, clearer, smoother sound with more detail over the stock speakers. Note that these speakers are considerably shallower than the Scale Trains UNI1 and UNI2 speakers. As a result, the increased depth of sound from the SSS speaker will not be as profound in this UNI3 speaker but an improvement will be realized nonetheless.
 
The speaker comes fully assembled and tested.
 
Dimensions: 7mmH x 16mmW x 25mmL
 
VIDEO: https://youtu.be/IG582NYOfpg