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Blank Sound DecodersStandard DecodersFunction DecodersAccessory Decoders

BLANK Sound Decoders (with factory/test sound only)

Zimo sound decoders are the industry leaders in terms of features, performance and reliability. All Zimo sound decoders provide the same set of features varying onlyin their physical attributes such as size, motor power output, and number of function outputs.

Which decoder should I choose? Well, this depends on the scale and model you are installing into, how much space you have, and if there are any specific features you need. Contact YouChoos if you need help.

Prices listed below are for factory-default decoders (for no extra cost, choose any YouChoos sound project to have loaded - browse from the sound list rather than here to do this). Speaker is not included.

MS450 30x15x4mm
1.2A continuous / 2.5A peak
16V direct stay-alive (unlimited) with smart-stop
8pin on wired harness or PluX22 direct plug-in
3W audio at 4 ohm or 8 ohm
10 Functions
More Information
MS450Wires only
- may be supplied as R version anyway
Add to basket
£119

MS450R'R' version 8pin on wired harnessAdd to basket
£120

MS450P22PluX22 direct plug-in versionAdd to basket
£115

MS440 30x15x4mm
1.2A continuous / 2.5A peak
16V direct stay-alive
21pin direct plug-in
3W audio at 4 or 8 ohm
8 Functions
With native 16V stay-alive
supplied with example capacitor (normally 1000uF 16V)
More Information
MS440C'C' Version (FA3,4,5,6 outputs are logic-level)Add to basket
£115

MS440D'D' Version (All 8 full-power AUX outputs) - will be supplied as 'C' but re-configured to suit 'D' optionsAdd to basket
£115

MS480 19x11x3.1mm
0.8A continuous / 1.5A peak
16V direct stay-alive (up to 1000uF) or more via LifeLink or STAC01
8pin on wired harness, 6pin on wired harness or PluX16 direct plug-in
1W audio at 8 ohm
6 Functions
More Information
MS480Wires only
- may be supplied as R or F version anyway
Add to basket
£119

MS480R'R' version 8pin on wired harnessAdd to basket
£120

MS480F'F' version 6pin on wired harnessAdd to basket
£120
temp out of stock

MS480P16PluX16 direct plug-inAdd to basket
£115
limited stock

MS491 19x7.8x2.8mm
0.7A continuous / 1.5A peak
16V direct stay-alive (up to 1000uF) or more via LifeLink or STACO
8pin on wired harness, 6pin on wired harness or 6pin direct plug-in
1W audio at 8 ohm
5 full-power functions
More Information
MS491Wires only
- may be supplied as R or F version anyway
Add to basket
£119

MS491R'R' version 8pin on wired harnessAdd to basket
£120

MS491F'F' version 6pin on wired harnessAdd to basket
£120

MS491N6pin direct plug-inAdd to basket
£115

MS500 14x10x3mm
0.7A continuous / 1.5A peak
16V direct stay-alive (up to 1000uF) or more via LifeLink or STAC01
wires-only, or 6pin direct plug-in
1W audio at 8 ohm
4 Functions
More Information
MS500Wires only
- may be supplied as R or F version anyway
Add to basket
£119
low stock

MS500R'R' version 8pin on wired harnessAdd to basket
£120
low stock

MS500F'F' version 6pin on wired harnessAdd to basket
£120

MS500N6pin direct plug-inAdd to basket
£115
low stock

MS581 24.9x10x4mm
0.8A continuous / 1.5A peak
Tantalums on board + 5V direct stay-alive (unlimited), or up to 1000uF/16V via direct solder pads, or unlimited 16V via LifeLink or STAC0
Next18 direct plug-in
3W audio at 4 ohm
6 full power Functions plus 2 logic level
Replaces MS580
More Information
MS581N18Next18 with onboard Tantalums for stay-aliveAdd to basket
£115

MS581N18GNext18 with wires for external stay-alive
Includes 2x mini GoldCaps
Add to basket
£115

MS540 19x8.7x2.8mm
0.8A continuous / 1.5A peak
Up to 1000uF/16V via direct solder pads, or unlimited 16V via LifeLink or STAC0 through pads
Next28/E24 direct plug-in
1W audio at 8 ohm
8 full power Functions plus 4 logic level
More Information
MS540E24E24/Next28
£tbc

coming soon

MS590 15x10x3mm
0.7A continuous / 1.5A peak
16V stay-alive possible via SACC16/LifeLink
Next18 direct plug-in
1W audio at 8 ohm
4 Functions
More Information
MS590N18Micro Next18Add to basket
£120

MS950 50x23x15mm
4A continuous / 10A peak
Big stay-alive on-board
Pins to plug into 'L' type interface
2x 3W audio at 4 or 8 ohms
11 Function Outputs
More Information
MS950Large scale sound decoder
Pins for 'L' type socket
Add to basket
£165

LOK950P'L' type adapter plate to take MS950 decoder
61x25x10mm
Solder pads
Add to basket
£15

LOK950K'L' type adapter plate to take MS950 decoder
75x25x10mm
Screw Terminals
Add to basket
£25

MS950LOKPLarge scale sound decoder
Pins for 'L' type socket
Combi-package supplied with LOK950P adapter plate
61x25x15mm (combined height)
Add to basket
£180

MS950LOKKLarge scale sound decoder
Pins for 'L' type socket
Combi-package supplied with LOK950K (screw terminal) adapter plate
75x25x10mm (combined height)
Add to basket
£190

MS990 50x40x13mm
6A continuous / 10A peak
Big stay-alive on-board
Pins to plug into 'XL' type interface or screw terminal version
2x 10W audio at 4 or 8 ohms
15 Function Outputs (2A total max)
6 servo connections
additional low voltage outputs for 1.5A, 0.5A and 2A
4 switch inputs
More Information
MS990KLarge scale sound decoder
Screw terminals
Add to basket
£210
temp out of stock

MS990LLarge scale sound decoder
Pins for 'XL' type socket
Add to basket
£200
low stock

LOK990P'XL' type adapter plate to take MS990L decoder
62x45x10mm
Solder pads for all connections
Add to basket
£15
temp out of stock

MS990LOKPLarge scale sound decoder
Pins for 'XL' type socket
Combi-package supplied with LOK990P adapter plate
Total height plugged in is 18mm
Add to basket
£215
temp out of stock

MX645
30x15x4mm
1.2A continuous / 2.5A peak
16V direct stay-alive
3W audio / 10 Functions
With native stay-alive
supplied with example capacitor
More Information
MX645wires only (no plug)
obsolete

MX645R8pin version on wired harness
obsolete

MX645P22PluX22 direct plug-in versionAdd to basket
£105
last few

MX644
30x15x4mm
1.2A continuous / 2.5A peak
25V direct stay-alive (16V via LifeLink/SACC16)
21pin direct plug-in
3W audio / 8 Functions
With native 25V stay-alive
supplied with example capacitor
More Information
MX644D'D' Version (All 8 full-power AUX outputs)
obsolete

MX644C'C' Version (5th+6th AUX outputs are logic-level)
obsolete

MX648
20x11x4mm
0.8A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16
1W audio / 6 Functions
More Information
MX648wires only (no plug)
obsolete

MX648R8pin on wired harness version
obsolete

MX648F6pin on wired harness version
obsolete

MX648P16PluX16 direct plug-in versionAdd to basket
£105
one available, no packet

MX649
23x9x4mm
0.7A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16
1W audio / 4 Functions
More Information
MX649wires only (no plug)
obsolete

MX649R8pin on wired harness version
obsolete

MX649F6pin on wired harness version
obsolete

MX649N6pin direct plug-in version
obsolete

MX658N18MX658N1825x10.5x4mm
0.8A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16 if model provides connections
Next18 direct plug-in
1W audio / 4 Functions

obsolete

MX659N18MX659N1820x9.5x3mm
0.7A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16 if model provides connections
Next18 direct plug-in
1W audio / 4 Functions
Slightly less stay-alive on board than then 658 but very very small!

obsolete

MX660MX66042x9x2.5mm
0.8A continuous / 1.5A peak
Extra Stay-Alive via LifeLink/SACC16
Drop-in replacement board to suit many N gauge diesel models (and others)
1W audio / 6 Functions
Solder pad connections
Built-in resistors for LED lighting
Add to basket
£105
a few available again

MX696KS
69x29x19mm
4A continuous / 10A peak
16V direct stay-alive
10W audio / 8 Functions
With stay-alive connections
More Information
obsolete

MX699K
50x40x14mm
6A continuous / 10A peak
Stay-Alive Built In
10W audio
With native stay-alive
onboard 3F SuperCap stay-alive
More Information
MX699KS8 AUX functions version
na
Add to basket
£185
last one

MX699KVFull 14 AUX functions version
na

obsolete

Replacement Zimo N/OO MX6*/MS4*/5* series Sound Decoder (small)Replacement Zimo N/OO MX6*/MS4*/5* series Sound Decoder (small)Send back your damaged Zimo sound decoder for immediate replacement
Contact YouChoos with required project and details
Like-for-like.
Small scale decoders
Includes re-load (YouChoos or free projects) and new doc pack.
Add to basket
£30

Replacement Zimo N/OO MX69*/MS9* series Sound Decoder (large)Replacement Zimo N/OO MX69*/MS9* series Sound Decoder (large)Send back your damaged Zimo sound decoder for immediate replacement
Contact YouChoos with required project and details
Like-for-like.
Large scale decoders
Includes re-load (YouChoos or free projects) and new doc pack.
Add to basket
£40


Standard Decoders

Standard decoders mean that you can control motor and one or more auxilliary/function outputs (for lighting, smoke etc.). These are NOT sound decoders. Choose based on size, motor power output, and required outputs.

Zimo standard decoders are probably the best available for fine motor control and offer a variety of CVs to assist in tuning outputs to get the best from your models.

Ask if you need help choosing! YouChoos holds stock of most of these decoders.

Zimo MX600 25x11x2mm - super thin
0.8A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16
4 Functions
8pin on wired harness version
Affordable Zimo greatness!
More Information
MX600R8pin wiredAdd to basket
£25

Zimo MX615 8.2x5.7x2mm
0.5A continuous / 1A peak
Stay-Alive via LifeLink/SACC16
4 Functions
Available in 6pin direct plug-in version or wires-only version (may be supplied with 6pin or 8pin plug on the end)
Zimo's smallest ever motor decoder!
NOTE: should NOT be used on Analogue systems!
More Information
MX615N6pin directAdd to basket
£36

MX615Wires-only (may be supplied as R 8pin or F 6pin version)Add to basket
£38

Zimo MX616 8x8x2.4mm
0.7A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16
6 Functions
Available in 6pin direct plug-in version or wires-only version (may be supplied with 6pin or 8pin plug on the end)
More Information
MX616N6pin directAdd to basket
£34

MX616Wires-only (may be supplied as 'R' 8pin or 'F' 6pin on harness)Add to basket
£36

Zimo MX617 13x9x2.5mm
0.8A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16/STACO1
4 Functions
Available in 6pin direct plug-in version or wires-only version (may be supplied with 6pin or 8pin plug on the end)
More Information
MX617R8pin on wired harness 'R' versionAdd to basket
£34
limited stock available

MX617F6pin on wired harness 'F' versionAdd to basket
£26
limited stock

MX617N6pin direct plugin 'N' version
obsolete

Zimo MN170 12x8.6x2.3mm
0.7A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16/STACO
6 Functions full power plus 2 Logic Level
Available in 6pin direct plug-in version (N) or 6pin on harness (F) or 8pin on harness (R)
MN based on MS technology
Replaces MX617
More Information
MN170N6pin DirectAdd to basket
£34

MN170F6pin plug on wired harness 'F' versionAdd to basket
£36

MN170R8pin on wired harness 'R' versionAdd to basket
£36

Zimo MN180 13.3x9.5x2.6mm
0.7A continuous / 1.5A peak
Stay-Alive via solder pads to max 15000uF/15V
4 Functions +4 Logic Level
Next18 direct plug-in interface
MN based on MS technology
More Information
MN180N18Next18Add to basket
£34

Zimo MN330 30x15.3x2.5m
1.2A continuous / 2.5A peak
Unlimited direct connection of 15V stay-alive (1000uF included)
10 Functions
PluX22 Direct plug-in version
MN330 replaces MX637P22 and MX633P22
More Information
MN330P22PluX22Add to basket
£34

MN330R8pin on harnessAdd to basket
£36

Zimo MN340 28x15.3x2.5mm
1.2A continuous / 2.5A peak
Stay-Alive 1000uF/16V direct sample included or unlimited 16V direct
8 Functions
21pin 'D' (all full power) and 'C' (FA3-6 Logic Level) switchable by CV
Replaces MX634 and MX638
More Information
MN340C21pin (can be changed 'C'/'D' variants with CV change)Add to basket
£34

Zimo MN300 18x10.5x3.1mm
1A continuous / 1.5A peak
Stay-Alive up to 1000uF/16V direct (sample 1000uF cap included) or greater via LifeLink/SACC16/STACO
6 Functions
Available in 6pin wired (F) version, 8pin wired (R) and PluX16 Direct plugin versions
Replaces MX630
More Information
MN300F6pin wiredAdd to basket
£36

MN300R8pin wiredAdd to basket
£36

MN300P16PluX16 direct pluginAdd to basket
£34

Zimo MX623 20x8.5x2.5mm
0.8A continuous / 1.5A peak
Stay-Alive via LifeLink/SACC16
4 Functions
Available in 6pin wired (F) version on 8pin wires (R) version
More Information
MX623F6pin wiredAdd to basket
£32
last few

MX623R8pin wired
obsolete

Zimo MX630 20x11x3.5mm
1A continuous / 2.5A peak
Stay-Alive via LifeLink/SACC16
6 Functions
Available in 6pin wired (F) version or 8pin wired (R), or PluX16 version
More Information
MX630F6pin wired
obsolete

MX630R8pin wired
obsolete

MX630P16PluX16
obsolete

Zimo MX633 22x15x3.5m
1.2A continuous / 2.5A peak
16V direct stay-alive
10 Functions
8pin on wired harness, or PluX22 direct plug-in versions
More Information
MX633R8pin wired
obsolete

Zimo MX634 20.5x15.5x4mm
1.2A continuous / 2.5A peak
25V direct stay-alive (16V via LifeLink/SACC16)
6 Functions
Available in 8pin wired (R) version or 21pin direct (D - switchable to C)
More Information
MX634R8pin wired
obsolete

MX634D21pin (can be changed to 'C' variant with CV change)
obsolete

Zimo MX635 25x15x4.7mm
1.8A continuous / 2.5A peak
16V direct stay-alive
10 Functions
High power 8pin on wired harness version
Direct connection of 16V capacitors for stay-alive
More Information
MX635R8pin wiredAdd to basket
£42

MX635P22PluX22Add to basket
£40
low stock

Zimo MX636 25x15x3.5mm
1.8A continuous / 2.5A peak
16V direct stay-alive
8 Functions
21pin direct plug-in version
More Information
MX636D21pin
£tbc
temp out of stock

Zimo MX638 Zimo MX638 20.5x15.5x4mm
1.2A continuous / 2.5A peak
Stay-Alive via LifeLink/SACC16 if model provides connections
6 Functions
21pin MTC direct plug-in version
MX638D21pin
obsolete

Zimo MX696N Zimo MX696N 55x29x15mm
4A continuous / 10A peak
16V direct stay-alive
8 Functions with stay-alive facility
Pin/solder connections
MX696NpinsAdd to basket
£90
one remaining


Function Decoders

Function decoders offer ONLY auxilliary/function outputs, and DO NOT have output for controlling motor or sound.

They have a wide variety of applications, but most commonly used to add lighting, smoke, or auto-coupling control to a vehicle that has no motor. For example, many modern steam locos have a DCC decoder socket in the tender, which gives control of the motor, so a separate function decoder can be added in the boiler of that loco to provide control of loco lamps, firebox glow and other special features.

Another common use is to provide DCC control of coach lighting, which is particularly effective where the decoder supports a stay-alive capacitor which helps eliminate flicker.

Zimo MX688N18Zimo MX688N1815x9.5x2.8mm
0.7A 6 Functions
Next18

obsolete

Zimo MX689N18Zimo MX689N1814x9.5x2.1mm
0.7A 8 Functions
Next18
Stay-alive possible via LifeLink from pads on reverse
Add to basket
£25

Zimo MX671 Zimo MX671
10.5x8x2.2mm
0.7A 6 Functions
Available in 6pin direct version (N) or wires only version (wired version includes Ground wire for stay-alive pre-connected).
Direct connection of 25V stay-alive supported
MX671Wires-only (often supplied with 6pin or 8pin plug on the wired harness)Add to basket
£24
temp out of stock

MX671N6pin DirectAdd to basket
£22
limited stock available

Zimo MX686
Zimo MX686
Zimo MX686 20.5x15.5x4mm
1.2A 8 Functions
21pin direct version
MX686D21pin MTC DirectAdd to basket
£30
temp out of stock

Zimo MX685 Zimo MX685 20x11x3.5mm
1A 8 Functions
wires-only version
MX685wires onlyAdd to basket
£26

Zimo MX675 Zimo MX675 25x15x4mm
1.8A, 12 Functions, 2 Servo
wires-only version
MX675Vwires onlyAdd to basket
£34
limited stock

Zimo MX605SL Zimo MX605SL Lighting function decoder for Kato models
MX605SLHeadlight PCB function decoder designed for Kato N gauge models e.g. Class 800Add to basket
£18
temp out of stock
special order

Zimo MX687W Zimo MX687W 28x15.5x4mm
1.2A 8 Functions with stay-alive facility, full feature/power version of MX686
wires-only version
MX687Wwires onlyAdd to basket
£36
limited stock


Accessory Decoders

Accessory decoders are static decoders on your layout, deployed to control points and lighting features. Some allow control of solenoid-style point motors, and others give fine servo-control for slow-action points. You need a DCC controller that understands how to drive accessory decoders (most controllers other than the very basic ones can do this).

Train-Tech PC200 Quad Point DCC ControllerTrain-Tech PC200 Quad Point DCC ControllerControls 4 solenoids by DCC and external switches. Route store sets routes with one command. Features a built-in CDU for efficient operation of solenoid motors. Easy to programme.Add to basket
£43

Train-Tech PC2 Quad Point DCC ControllerTrain-Tech PC2 Quad Point DCC ControllerControls 4 solenoids by DCC (same as PC200 but without external switch connections)). Route store sets routes with one command. Features a built-in CDU for efficient operation of solenoid motors. Easy to programme.Add to basket
£38

DigiKeijs DR4018DigiKeijs DR401816-channel accessory switching decoder (not for servos)
obsolete
use YD8116

YaMoRC YD8008 CDU Solenoid point accessory decoderYaMoRC YD8008 CDU Solenoid point accessory decoderHigh-current, 8-way accessory switching decoder for solenoids
hopefully back before long

YaMoRC YD8116 light switching accessory decoderYaMoRC YD8116 light switching accessory decoder16-way accessory switching decoder for lighting,
2.5A independent outputs, max 5A combined.

hopefully back before long

YaMoRC YD8044 CDU Solenoid point accessory decoder with FrogYaMoRC YD8044 CDU Solenoid point accessory decoder with FrogHigh-current, 4-way accessory switching decoder for solenoids, with Frog switching built-inAdd to basket
£63

DigiKeijs DK50018DigiKeijs DK5001816-channel accessory switching decoder (not for servos). The DK50018 is the next generation of smart devices, equivalent to the DR4018 but with BlueTooth connection to DigiKeijs' iOS/Android app for direct and easy configuration.
obsolete

DigiKeijs DR4018 with 8x MP1 MTB Point MotorsDigiKeijs DR4018 with 8x MP1 MTB Point MotorsIdeal companions: DR4018 16-channel accessory decoder (not for servos), complete with 8x of the excellent MTB MP1 slow-action point motors
obsolete
alternative coming soon

DigiKeijs DR4024DigiKeijs DR40244-channel accessory decoder for servos with 4 additional switching outputs
obsolete
alternative coming soon

DigiKeijs DR4024 KitDigiKeijs DR4024 KitIncludes DR4024 4-channel accessory decoder for servos with 4 additional switching outputs, plus 4 mini-servos and 50cm servo extension cables
obsolete
alternative coming soon

Zimo MX820EZimo MX820E19x11x2mm
1A, 1 point (not servo), 2 inputs

temp out of stock

Zimo MX820VZimo MX820V19x11x3mm
1A, 2 points (not servos), 4 inputs
Add to basket
£34

Zimo MX820XZimo MX820X19x11x2mm
1A, 1 point (not servo), 2 inputs, 8 lights
Add to basket
£38

Zimo MX820YZimo MX820Y19x11x3mm
1A, 2 points (not servos), 4 inputs, 16 lights
Add to basket
£42

Zimo MX820ZZimo MX820Z19x11x3mm
1A, 0 points, 0 inputs, 16 lights

temp out of stock

Zimo MX821SZimo MX821S105x50x11mm
3A, 8 points (3-pin servos), 0 inputs, 0 lights
Add to basket
£66

Zimo MX821VZimo MX821V105x50x11mm
3A, 8 points (3-pin servos), 16 inputs, 16 lights (100mA each), Railcom for feedback of position
Add to basket
£96

DigiKeijs DR5013 Ultimate Reversing Loop ModuleDigiKeijs DR5013 Ultimate Reversing Loop ModuleThe Digikeijs DR5013 digital reverse loop module offers a total solution. This reverse loop module contains many aspects that make it a good module. Think of AutoReverse short circuit detection, busy indication of the reverse sections (T, S1, S2), an integrated Railcom and much more. This reverse loop module also offers you the possibility of easy configuration via a USB connection.
obsolete
alternative coming soon

DigiKeijs DR4050 RGB ControllerDigiKeijs DR4050 RGB ControllerRGB LED controller including accessories to create night/day lighting effects
obsolete


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