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Recommendations:

1) Use an air-tight enclosure. If the back of the speaker can be sealed from the front of the speaker by the car body, then okay. But the air path between either sides of the speaker cone must be at least the diameter of the speaker.

2) Install the largest speaker diameter possible. Bass response is proportional to speaker diameter.

Auscision B class (fitted with a v3.5 decoder and 23mm round speaker)

The v3.5 decoder just fits under the shell.The 8 pin plug connects direct to the 8 pin socket provided on the DC board. The DC switch wires can be used to route the speaker wires through the chassis to a speaker mounted in a baffle in the fuel tank. If you are competent, the DC light board can be binned and a bass reflex speaker installed (speaker facing down) above the motor. The decoder would need to be hardwired to the lights. Solderering of all wires should result in a greater long term running reliability, by avoiding the many electrical plugs.

Fitment of a 23mm speaker in the fuel tank can be done, but the LokSound enclosure is too large for the tank. A floor can be mounted in the top of the fuel tank and the speaker mounted in the ~20mm hole in the baffle plate. A piece of PVC electrical tapemust be placed over the hole in the bottom of the tank to ensure the effective enclosurecan be made airtight. The fuel tank valances hide the baffle plate.

Trainorama S class (fitted with a v3.5 decoder and 23mm round speaker)

The v3.5 decoder just fits under the shell. The 8 pin plug connects directly to the 8 pin socket on the DC board. The 23mm 100 ohm speaker and enclosure which come with the v3.5 decoder are mounted in place of the 8 ohm Trainorama speaker which need to be removed. Ensure the enclosure is air tight. Microscale Krystal Klear glue works well. With some work the 28mm LokSound speaker and enclosure may fit.

Austrains T class (fitted with a micro decoder and 16x25mm oval speaker)

The Austrains and Powerline T class models require the micro decoder from Loksound, which comes with the smaller 16x25mm oval speaker. On the Austrains model the decoder plugs into the 8 pin socket on the Austrains light board, and the speaker is located in the fuel tank. LEDs are on option, and the user may want to remove the light board and hardwire the decoder with new LEDs and 1k ohm resistors. The Powerline model requires the speaker (and homemade enclosure) to be fitted above the rear bogie. The chassis should be machined to package a speaker enclosure, so the job is a little more work than for the Austrains model.

Austrains Y class (fitted with a micro decoder and 16x25mm oval speaker)

The Y class requires a micro decoder with the oval speaker. In the installation below, the decoder wires have been soldered to the 8 pin socket of the Austrains light board. As the Y comes with marker lights, the DC ligh board should be retained by those not overly confident with electronics. The long hood headlight should be soldered to the DC board for a more reliable electrical connection. The Austrains chassis provides a sound tunnel and the body acts as an enclosure, so as long as the speaker is sealed to the top of the chassis, good sound will result.

Steam Era Models DERM (fitted with a v3.5 decoder and bass reflex oval speaker)

 Coming soon!