ESU 54399 LokSound XL V4.0 DCC Decoder Multi-Pin Connect~ Factory Sound


Out of stock

ESU 54399 LokSound XL V4.0 DCC Decoder Multi-Pin Connect~ Factory Sound


Out of stock

SKU: ESU54399 Categories: ,


With its size of 51mm x 40 mm (2 x 1.57 inches) the LokSound XL V4.0 easily fits in all large gauge locomotives and comes in two different interface versions:

Operational modes

The LokSound XL V4.0 is an absolute universal genius. It is the first and only decoder world-wide, speaking 4 data protocols and can thus be used anywhere. Beside DCC operation with RailComPlus recognition, the decoder will be automatically recognised by M?rklin? command stations via the M4 protocol.

The LokSound XL V4.0 decoder can also be used on analogue DC or AC layouts.

The built-in motor control will learn the motor manners and synchronise the drive and lighting functions with the sound functions.

During DCC operation there will be up to 28 functions available. The decoder will be automatically recognised in a matter of seconds by an ESU ECoS with RailComPlus? detection and show all functions as well.

Motor control

From a LokSound made for larger gauges you expect an excellent motor control and considerable power and deservedly so! LokSound XL V4.0 is equipped with the 5th generation of load control. You can adjust the control frequency adaptively to the speed. So many motors will run even better and softer.

Thanks to the 10 Bit A/D convertor, locos with well-known motors by e.g. B?hler?, Mabuchi?, Faulhaber? or Maxon?, will drive very slowly on the tracks. You can determine a limitation of the load control?s influence with the Dynamic Drive Control (DDC) to control very accurately in station or shunting switch areas. Uphill running also appears very natural with it.


The most important element of the new LokSound V4.0 decoders is the sound chip. This is why we have equipped the LokSound XL V4.0 with an enormous memory of 32 MBit to save up to 276 seconds of original sounds. The LokSound XL V4.0 works with 8 polyphonic channels, i.e. that the decoder is able to play up to 8 different sounds simultaneously, using the 10-Bit mixer and the nearly noiseless D/A convertor.

So we can provide much better monitoring of the original locomotive?s complex elements as it is possible to combine several channels. You?ll recognise the difference at once! The sounds will be transmitted to the loudspeaker using a new digital ?class D? amplifier. The dublex power amplifier, the LokSound XL V4.0 has been equipped with, allows you to hear your locos anytime from the furthest corners of your garden.

Thus you will be able to connect two different loudspeakers and bring out a maximum performance of all in all up to 13 Watts from the decoder.


In larger scaled locos a lot of special functions could be switched or moved. Therefore the new decoder comes with twelve (12!) function outputs with 500mA power/constant current each to control lighting effects or fan motors. Each function output can be adjusted individually in terms of brightness or lighting effects and controls LEDs or light bulbs. Also micro bulbs with a current of 1.8V can be directly used due to an integrated voltage regulator.

Beyond this, the LokSound XL V4.0 decoder controls 4 servos. This allows features such as lifting and lowering pantographs, functional shunting couplings or radius bar (reach rod) changes on steam locomotives. Simply plug in our ESU servos or other commercial servos. Of course, you will be able to synchronise motor, sound and special functions.

The LokSound XL V4.0 decoder is prepared to control external smoke generators.

Three digital inputs can be used for control functions. Thus it is possible to install a reed contact under the locomotive and spread track magnets across the layout to trigger a horn when passing them or ? a brand-new function! ?stop automatically at the station and drive on automatically after a few seconds.

Safe operation

The PowerPack (which is directly integrated on the decoder) reliably buffers all of the decoder?s functions and makes a reliable and trouble-free operation possible.

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