FX-4U
MAIN FEATURES

• High volume output - with low power drain

• AutoVol© Automatic volume level The volume increases automatically with loco speed

• Manual volume control

• Digital Sound from digital recordings - of real locomotives for greatest realism

• Engine sound is fully proportional to loco speed
• Easy Installation - just needs a screwdriver
• Reverse power protection
• Power failure detection

• Directly compatible - with Mac•five, IMP, CHIMP, SS-3 Super Shuttle and similar pulse power controllers

• Ancillary Sound Effects - (fixed length, switch operated) such as two tone horns for diesel and electric locos, whistle for steam locos.

• Speaker supplied - choice of 77mm or 66mm 8 ohm impedance

• Optional Extras - (1) Radio control input - to operate two tone horns or whistle, de-glitched to help prevent random operation. (2) External sound input option from CD, MD, or cassette players, radio, or BJ add-on sound modules (3) Steam ‘sync’ input
• Re-programmable in a FLASH!
No need to buy new chips if you want to upgrade a recording

Two versions
FX-4U/2..2 watt amplifier
FX-4U/5..5 watt amplifier

Now available!
The new FX-2A universal interface module for 2 rail and large battery locos in 5” & 7¼” gauge. This allows connection to almost any controller!

Digital Sound Effects

Introducing the FX-4U........

Operating Voltage:

Size: 3.4” x 1.2” x 0.7”, 86.4 x 30.5 x 18(mm).
Operating Voltage:
12v to 26v (with 5 watt amplifier)
10v to 20v (with 2 watt amplifier)
Both types can be run on voltages down to 7v but with increased distortion.
Power Output (maximum RMS):
5 watt amplifier - 5.5 watts (with 8 ohm speaker)
2 watt amplifier - 2.5 watts (with 8 ohm speaker)

Typical Current Consumption: < 0.1A

The FX-4U can be used with conventional 2-rail DC and HF power controllers by adding the FX-2A Universal Interface module. Ideal for 5” and 7¼” G locos.

At last! A digital sound effects card (with UK locos in mind) for battery powered locos, designed specifically for pulse power controllers.
The FX-4U uses digitised recordings of real locomotives, so that your engine can be made to sound just like the real thing!
The sound effect in the FX-4U can be one taken from the BJ sound library or, for a transcription fee, you can have your own recording digitised and programmed into an FX-4U.

This is only the start! The FX-4U has been designed as the heart of a digital sound system. External sound from suitable audio sources can also be played into the FX-4U and mixed with the on-board sound. In addition, several unique options are also in course of development to further exploit this feature!

Currently Available
B.R. Class 37, 52, & 66 diesel locos + horns and engine start
Class 158 Sprinter DMU + horns and engine start
Ffestiniog Funkey Diesel + horn and air brake*. *R/C only

In Preparation
BR Class 31, 47 diesels. Class 9F, Class 5, Bulleid Pacific, & GW Prairie steam locos.