User Guide

Sample Speaker Installations
11
Mounting speaker in hood of engine using a metal grill for the exhaust.
Using the fuel tank as a speaker
baffle is quite easy. In this case the
speaker eminates sound into the
body.
Mounting a speaker facing out from
inside of the body. You have to seal
all edges of the speaker for a proper
baffle.
In the case of a long body, such as the GG1, you can place four speakers inside the
shell. As shown above, the body shell is used as the backside of the baffle The more
speakers, the better the sound (especially when using small speakers as in model
locomotives. Four speakers make an ideal configuration.
Body shell before speaker installation.
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.
Body shell after speaker installation. Speakers are mounted on a card stock formed
shelf and then hot melted in place. Air space is required between the front of the
speakers and the body bottom but the back of the speaker enclosure is completely
sealed to make a good enclosure / baffle! This type of installation yields more sound
per watt than one single speaker.