This is a Rectify Series drop-in speaker system for Aurora SD60F locomotives. Enjoy louder, fuller and more detailed sound!
 
The solution is pretty simple. The spots they use for speakers are quite small. The Scale Sound Systems Rapido RS11 speaker fits perfectly on top and the driver lines up with the exhaust stack beside the horn. All of the sound comes from where it should! No modifications are required to replace the factory speakers.
 
The speaker comes fully assembled and tested.
 
Dimensions are: 9mmH x 18mmW x 50mmL
 
VIDEO: https://youtu.be/2uoZcgjxkPo