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LokSound 5 Sound Decoder with NMRA 8-pin Plug
30mm x 15.5mm (1.189" x 0.609")

The LokSound 5 is the most important member of the LokSound family. Due to the combination of digital decoder and sound module on a printed circuit board, the decoder is only 30mm x 15.5mm and can be installed in almost any locomotives in HO, S, or 0 (zero) gauges if the max current draw is under 1.5amps.

Because of different needs in the Global Market we have created two different versions of the LokSound V5, LokSound 5 DCC and the Multi-Protocol LokSound 5.


The LokSound 5 DCC is made for the North American and Australian markets. It is a pure DCC decoder, which supports RailComPlus® and can also be used on DC layouts.


In addition to speaking DCC, Motorola®, Selectrix®, and MFX®/M4 digital languages, LokSound 5 decoders are offered with all common interfaces and always come with an 11 x 15mm "sugar cube" speaker and sound enclosure kit.


Like all family members, the LokSound 5 is a true multiprotocol decoder. It masters the data format DCC as well as Motorola®, Selectrix®, and M4. In the DCC format, 14 to 128 speed steps are as natural as 2- and 4-digit addresses and up to 32 functions. Thanks to RailComPlus®, the decoders log on fully automatically to a suitable, RailComPlus® supporting, digital central unit such as the ESU ECoS or ESU CabControl.

It masters all DCC programming modes and, thanks to RailComPlus® the CV values can be read out on the main track with suitable DCC systems. For DCC systems that can only program the CVs from 1-255, there are auxiliary CVs that allow for programming CV numbers above 255.

Motorola® users benefit from up to 28 speed steps with 255 addresses. Three additional Motorola® addresses enable the triggering of 16 functions. A built-in programming mode also makes reprogramming possible with the venerable Control Unit 6021. The M4 protocol allows automatic logon to MFX® compatible systems.

The LokSound 5 decoder recognizes the Märklin® braking distances as well as ZIMO® HLU brake commands or the Lenz® ABC system. Braking with DCC brake modules or DC voltage is also possible. It also stops with a Selectrix® brake diode. An automatic ABC shuttle allows automatic commuting between two stations.

The LokSound 5 decoder can also be used on analog DC and AC layouts.


The LokSound 5 decoder can play up to 10 channels simultaneously. Each channel can be resolved with up to 16 bit / 31250 kHz and finally offers hi-fi quality on your layout. There is virtually no difference when compared to the original locomotive. A Class D audio power amplifier with up to 3W output powers the speakers, which may have between 4 ohms and 32 ohms impedance. The huge 128 Mbit sound storage provides enough capacity for multiple sounds.

All individual sounds can be individually adjusted in volume. The super flexible sound engine without rigid schedule allows the prototypical simulation of all imaginable locomotives. Three separately adjustable braking functions and two alternative load scenarios give you the maximum control over your locomotives.


We know that you want your locomotives to be as realistic as possible. That's why we packed the LokSound 5 with function outputs. Depending on the interface version, each LokSound 5 decoder offers at least 10 amplified function outputs for lighting. For versions with the Plux22 or 21MTC interface, 4 outputs are added to control servos or logic level outputs. A direct connection for an optional ESU PowerPack is also available. 18 lighting effects are included. The brightness of each output can be set separately. The decoder handles the automatic on and off during uncoupling for ROCO®, Krois®, and Telex® couplings. In order to keep compatible with the thousands of LokSound Selects and LokSound V4 decoders already on the market we made sure to add many of the most popular features of that generation! This includes the Full Throttle features, including the famous Drive Hold!


The motor control of the LokSound 5 has again been fundamentally improved. A variably adjustable PWM clock frequency of 10kHz to 50kHz ensures super quiet operation especially for coreless motors. The typical "humming" is a thing of the past. The load control can now be adapted to difficult cases with up to 10 CVs. The unique "Autotune" function allows the automatic calibration of the decoder to the motor.

The LokSound 5 decoder delivers up to 1.5A motor current, enough juice for older engines.