last site update 21stJuly2022

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Zimo MS Sound Decoders

Introducing the new Zimo MS range of sound decoders - the next generation!

MS brings modern high-performance ARM processors coupled with more memory and 16-bit 44Khz sound playback for better audio - you can really hear the difference.

Improved and simplified support for stay-alive options, as well as new sizes for decoders means that the MS range is truly an exciting step forward in digital audio model railway control.

Largely compatible with existing sound projects (designed for MX), so a huge number of sounds already available, plus many more MS-specific projects that take advantage of the new architecture - YouChoos has reworked almost all projects with vastly improved sounds, but look out for our Crystal sound range which takes full advantage of the MS capabilities with all-new recordings.

128MBit storage means 4 times more sound data than MX, and with redesigned audio logic and circuitry, the clarity is hugely improved as well as supporting a broader range of frequencies for playback. Silent now means silent - no hiss, and loud is louder!

Meet the MS Range

There is an equivalent MS decoder for most of the existing MX range, which will eventually replace the MX decoders, though for a period both will be available.

MS450
De-facto standard for OO and small O gauge
8pin on harness and PluX22 versions
Replaces MX645
30x15x4mm
1.2A continuous / 2.5A peak
16V direct stay-alive
3W/4ohm audio / 10 Functions
With native stay-alive
supplied with example capacitor
MS440
21pin for OO and small O gauge
Switchable with CVs to support the various 21pin standards available
Replaces MX644
30x15x4mm
1.2A continuous / 2.5A peak
16V direct stay-alive
3W/4ohm audio / 8 Functions
With native stay-alive
supplied with example capacitor
MS480
8pin on harness, 6pin on harness and PluX16 for N gauge and small OO
Replaces MX648
19x11x3m
0.8A continuous / 1.5A peak
limited 16V direct stay-alive
1W/8ohm audio / 6 Functions
MS490
8pin on harness, 6pin on harness, or 6pin direct for N gauge and small OO
Replaces MX649
19x9x3m
0.7A continuous / 1.5A peak
limited 16V direct stay-alive
1W/8ohm audio / 4 Functions
MS500
8pin on harness, 6pin on harness, or 6pin direct for N gauge and small OO
No MX equivalent
14x10x3m
0.7A continuous / 1.5A peak
limited 16V direct stay-alive
1W/8ohm audio / 4 Functions
MS580
Next18 Direct plus 'G' variant with no onboard stay-alive but wires for external capacitors
Replaces MX658
25x11x4m
0.8A continuous / 1.5A peak
limited 5V direct stay-alive
1W/8ohm audio / 4 Functions
MS590
Next18 Direct
Replaces MX659
15x10x3m
0.7A continuous / 1.5A peak
16V stay-alive with LifeLink/SACC16
1W/8ohm audio / 4 Functions
MS950
Screw terminal adapter or pins
Replaces MX696
50x23x13m
4A continuous / 10A peak
on board stay-alive
3W/4ohm audio X2 stereo / 11 Functions
MS990
Screw terminals
Replaces MX699
50x40x13m
6A continuous / 10A peak
on board stay-alive
10W/4ohm audio X2 stereo / 15 Functions
STACO1
New stay-alive connection kit
For smaller MS decoders with limited direct stay-alive capabilities
10x7x2mm
Includes 3 mini GoldCaps 0.3F 2.7V (4x12mm each)

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