This speaker was developed to fit the Blackstone HOn3 K-27 tender. The system delivers deep, clear sound with a 1W power rating at 8Ω. While designed for the K-27, it could be suitable for a variety of other tenders.
 
The speaker is 9mmH x 20mmW x 30mmL. It replaces the stock speaker and fits under the stock decoder PCB. No modifications are required, though a little manipulation of the wires may be needed.
 
The speaker comes fully assembled and tested.
 
VIDEO: https://youtu.be/-BW-x4NQUMM