Use a re-designed baffle or enclosure
If you are lucky enough to be working on a model that has
a pre‐designed baffle or enclosure available for it, I recom-
mend you try that method first. Look at [2] shows an enclo-
sure designed by SoundTraxx for the Life‐Like Alco PA using
the venerable 28 mm speaker. SoundTraxx has designed these
for many of the Life‐Like cab diesels. The design places the
speaker inside the enclosure and leaves room for the circuit
board mounted on the frame above the truck. Removing the
board allows the speaker to be outside the enclosure, resulting
in a marginal improvement in the sound; as a result of more
enclosed air volume. Use caulk to seal the holes that were
designed to bring the wires into the enclosure.
2. A SoundTraxx enclosure with a 28 mm speaker in a Pro-
to 2000 Alco PA.
2
DCC Impulses Column - 3
