This is a Rectify Series drop-in speaker system for current-run Atlas Master RS-1 (possibly RS-3) locomotives. This enclosure is translucent, like the factory enclosure, working as the long-hood headlight's lightpipe. Little to no light-loss will occur. The enclosure comes pre-painted with light-block to reduce light-bleed over the truck (some light may still leak, as it does stock). The speaker uses the factory mounting screws and no modifications are needed to replace the factory speaker.
Alternatively, if you plan to replace the stock lighting with SMD-LEDs, you may choose to order this speaker in the normal black ABS, which has slightly better resonance characteristics than the translucent material.
The speaker comes fully assembled and tested.
Dimensions are: 9mmH x 16.5mmW x 40mm