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Sometimes it is necessary to make a small
baffle inside an open shell. Again, make sure
all areas that encase the backside of the
speaker are closed.
Using the fuel tank as a speaker baffle
is quite easy. In this case the speaker
eminates sound into the body.
Mounting speaker in hood of engine using a metal grill for the exhaust.
Sample Speaker Installations
For open body shells it is necessary to
make a speaker baffle instead of using
the body for a baffle. In both cases, the
backside of the speaker is closed off.
Mounting a speaker facing out from
inside of the body. You have to
seal all edges of the speaker for
a proper baffle.
Aristocraft SD45 or other
similar installations.
This locomotive and
others do not have a
cardstock baffle - glue speaker gasket to baffle
proper speaker
installation. It is
necessary to make a
baffle to mount the
speaker with. The baffle
prevents air from
circulating from the front
of the speaker to the rear
of the speaker. Circulating
air prevents the sound
from proper reproduction
and significantly reduces
the volume!
Mount the speaker and
seal all edges with either
"hot melt" or silicone seal.
Make sure that all edges
are properly made air
tight!
In this engine, the sound is
projected through the fans.
Aristocraft relay board (ART-5490)
Dallee Sound Card
Mounted for volume
control access from
the top of the engine
using existing holes.
Final installation. The relay board was mounted with double sided
foam tape (item 388).
11 watt amplifier is located beyond the speaker (not visible).
12
Speaker - Item #667 provides more fidelity and power
than standard speaker provided.
Crest (CRE-55492) 75MHz on board
Wireless Radio Control System
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