Shell preparation
The shell of the RS-11 needs holes to allow sound egress; a
bit of thinning inside at the front to create additional space
for the decoder, and some trimming of the plastic number
board/headlight inserts to create additional linear space for
the decoder and speaker. First, I trim back the rear part of the
number board inserts.
Next, I thin out the front of the shell just a bit using a 1/4” 250-
grit sanding drum on a Dremel. The stock shell has about 10.3
mm of space inside, and the LokSound decoder is 10.6 mm
wide; so I thin the shell by about .3 mm. I use digital calipers to
measure, but you can use the decoder to test the fit.
9
9. The sides of the
speaker box are
finished. The wires feed
through the hole.
8
8. A small hole is drilled
in the last side, to feed
the wires through.
