The New Micro V4.0 Sound Decoder from ESU
Loksound Micro decoder with NEM651 6-pin harness

The new LokSound micro decoder is an all-in-one driving, function and sound decoder. Is designed for those locomotives with not much space, suitable for N & TT Gauges. The dimensions are 25mm x 10.6mm x 3.8mm.

The LokSound micro V4.0 incorporates a complete digital decoder, which, besides DCC and Motorola®, also understands Selectrix®. Besides the two light outputs there is an integrated sound-section, equal to that of its bigger brothers plus two additional function outputs.

The LokSound micro V4.0 is available as 6-pin NEM651 or 8-pin NEM652 plug version. Every LokSound micro V4.0 decoder comes with a 4 Ohm 16mm x 25mm loudspeaker (0.6 x 1.0 inch) plus sound chamber.

Operation modes
The LokSound micro V4.0 recognises DCC, Selectrix® and the Motorola® protocol. It can be operated with 14, 28 or 128 drive steps or on analogue DC layouts in DCC mode.You can assign the decoders 2-digit (1-127) or 4-digit (1-9999) addresses as well as a consist address.

The Motorola®-protocol allows the operation of the LokSound micro V4.0 decoders with Märklin® control stations 6020®, 6021®, delta®, mobile station® and central station®.

The Selectrix® protocol allows the use of LokSound micro V4.0 decoders with this established system. All established DCC brake systems like the well-known Lenz LG100 and all the new Lenz® ABC brake units with asymmetrical DCC signal are recognised, as well as the braking on DC (with switched polarity) or on Selectrix® diode brake systems. You can also use the well-known Märklin® brake system in DCC-mode.

Of course, this new decoder is able to determine a constant braking distance, so that your locos stop in front of the red signal, no matter what speed your loco is at.

LokSound micro V4.0 decoders are also able to operate on analogue DC and AC layouts.

The decoders can switch automatically between all modes (AC, Motorola®, DC, DCC, Selectrix®) during operation. This is important if some parts of your layout work with analogue control (e.g. fiddle yards).

Motor control
LokSound micro V4.0 is equipped with the improved 5th generation of load control. You can adjust the control frequency with a base frequency of 40kHz. So motors will run better and smoother. The 10 Bit A/D converter makes it possible to drive your loco very slowly.

You can determine a limitation of the load control‘s influence with the Dynamic Drive Control (DDC) to control the locomotive accurately in the station or shunting areas.

The decoder‘s load control is suitable for all common motors, including those by ROCO®, Fleischmann®, Brawa®, Mehano®, Bemo®, Märklin®, Faulhaber® or Maxon®. You can also use AC motors as long as you replace the field winding with a HAMO Magnet.

The load control is well-prepared for all customary motor types, such as ROCO®, Fleischmann®, Brawa®, Mehano®, Bemo®, Märklin®, Faulhaber® or Maxon® motors. 0.75A steady load is more than the above-mentioned motors need and offers enough energy reserves, even for longer block trains.

Sound
The most important element of the new LokSound micro V4.0 decoders is the sound chip. This is why the LokSound micro V4.0 has been equipped with a 32 MBit memory with up to 276 seconds of original sounds.

The LokSound micro V4.0 works with 8 polyphonic channels, i.e. the decoder is able to play up to 8 different sounds simultaneously.

You‘ll recognise the difference at once! The sounds are amplified up to three times louder than before by using a new digital „class D“ amplifier. The Loksound micro V4.0 now requires 4 Ohm speakers! (See our range of Bass Enhanced and Bass Reflex 4 ohm speakers)

Analogue mode
LokSound micro V4.0 decoders can be used on DC as well as on AC layouts. The motor and the synchronisation of all driving, sound and light functions are controllable in analogue mode, too!

Functions
LokSound micro V4.0 decoders have 4 function outputs each with constant current of 150mA. In addition to the standard 4 functions, there are two more non-amplified outputs with logic level. All important light functions like Flash, Gyrolight, Mars light, fire box and so on are provided, including individual dimming of each function.

The decoders provide automatic coupling and decoupling for couplers by Roco®, Krois® and Telex® and from now on even a full beaming head light function.

The LED mode controls the right light effects when using LEDs.

Safe operation
The Loksound micro V4.0 will now also accept an un-interruptible power supply (ESU Art.No. 54670). This energy storage continues to supply the decoder with energy if the power consumption is effected by dirty track for instance.

RailComPlus®
A very important function of the LokSound micro V4.0 decoder is the integrated RailComPlus® function. Your locos will be recognised automatically by an appropriate digital command station and will receive, if needed, a new address. You can forget about cumbersome typing and programming!>br>
Protection
Of course, all function outputs and the motor current output are overload protected. We want you to have fun with your decoder as long as possible!

Future proofed
The firmware of LokSound decoders can be updated any time. This means, the internal software on the decoder‘s memory can be replaced by new versions if necessary. You‘ll simply need the ESU LokProgrammer and a PC.

Sound variations
ESU, as the technological and market leader, takes your needs for sound very seriously. There are already more than 200 sound variations available for the LokSound micro V4.0 in the ESU sound library

If you require a specific sound programmed on your LokSound micro V4.0 decoder please write the ESU V4.0 sound file project number in the notes section of your order.