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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				MS450R 'R' version 8pin on wired harness £120 MS450P22 PluX22 direct plug-in version £115
	MS440		30x15x4mm 1.2A continuous / 2.5A peak 16V direct stay-alive 21pin direct plug-in 3W audio at 4 or 8 ohm 10 Functions With native 16V stay-alive supplied with example capacitor (normally 1000uF 16V)				MS440C 'C' Version (FA3,4,5,6,7,8 outputs are logic-level) £115 MS440D 'D' Version (F0F/F0R/FA1/2/3/4/5/6 are full-power outputs, FA7/8 logic level) - will be supplied as 'C' but re-configured to suit 'D' options £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				MS480R 'R' version 8pin on wired harness £120 MS480F 'F' version 6pin on wired harness £120 MS480P16 PluX16 direct plug-in £115 limited stock held
	MS490		19x9x3mm 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 4 full-power functions				MS490 Wires only - may be supplied as R or F version anyway £105 CLEARANCE no packet, repaired, fully working MS490N 6pin direct plug-in £105 CLEARANCE no packet, repaired, fully working
	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 Replaces MS490				MS491R 'R' version 8pin on wired harness £120 MS491F 'F' version 6pin on wired harness £120 MS491N 6pin direct plug-in £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				MS500R 'R' version 8pin on wired harness £120 MS500F 'F' version 6pin on wired harness £120 MS500N 6pin direct plug-in £115
	MS580		25x11x4mm 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 1W audio at 8 ohm 4 full power Functions plus 2 logic level				MS580N18 Next18 with onboard Tantalums for stay-alive obsolete
	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				MS581N18 Next18 with onboard Tantalums for stay-alive £115 MS581N18G Next18 with wires for external stay-alive Includes 2x mini GoldCaps £115
	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				MS590N18 Micro Next18 obsolete
	MS591		15x9.3x3.1mm 0.7A continuous / 1.5A peak 16V stay-alive possible via SACC16/LifeLink Next18 direct plug-in 1W audio at 8 ohm 6 Functions Replaces MS590				MS591N18 Micro Next18 £120
	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				MS540E24 E24/Next28 £115 low stock available
	MS560		27x14x2.6mm 0.7A continuous / 1.5A peak Stay-alive via LifeLink or STAC0 through pads Kato slide-in board (IET 800, Eurostar etc.) 1W audio at 8 ohm 4 full power Functions				MS560 Kato-style N Gauge sound decoder £115 limited stock available
	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				MS950 Large scale sound decoder Pins for 'L' type socket £165 LOK950P 'L' type adapter plate to take MS950 decoder 61x25x10mm Solder pads £15 LOK950K 'L' type adapter plate to take MS950 decoder 75x25x10mm Screw Terminals £25 MS950LOKP Large scale sound decoder Pins for 'L' type socket Combi-package supplied with LOK950P adapter plate 61x25x15mm (combined height) £180 MS950LOKK Large scale sound decoder Pins for 'L' type socket Combi-package supplied with LOK950K (screw terminal) adapter plate 75x25x10mm (combined height) £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				MS990K Large scale sound decoder Screw terminals £210 MS990L Large scale sound decoder Pins for 'XL' type socket £200 LOK990P 'XL' type adapter plate to take MS990L decoder 62x45x10mm Solder pads for all connections £15 MS990LOKP Large scale sound decoder Pins for 'XL' type socket Combi-package supplied with LOK990P adapter plate Total height plugged in is 18mm £215
	MX645		30x15x4mm 1.2A continuous / 2.5A peak 16V direct stay-alive 3W audio / 10 Functions With native stay-alive supplied with example capacitor				MX645 wires only (no plug) obsolete MX645R 8pin version on wired harness obsolete MX645P22 PluX22 direct plug-in version obsolete
	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				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				MX648 wires only (no plug) obsolete MX648R 8pin on wired harness version obsolete MX648F 6pin on wired harness version obsolete MX648P16 PluX16 direct plug-in version obsolete
	MX649		23x9x4mm 0.7A continuous / 1.5A peak Stay-Alive via LifeLink/SACC16 1W audio / 4 Functions				MX649 wires only (no plug) obsolete MX649R 8pin on wired harness version obsolete MX649F 6pin on wired harness version obsolete MX649N 6pin direct plug-in version obsolete
× Cancel	MX658N18		25x10.5x4mm 0.8A continuous / 1.5A peak Stay-Alive via LifeLink/SACC16 if model provides connections Next18 direct plug-in 1W audio / 4 Functions				obsolete
× Cancel	MX659N18		20x9.5x3mm 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
× Cancel	MX660		42x9x2.5mm 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				£105 limited stock
	MX696KS		69x29x19mm 4A continuous / 10A peak 16V direct stay-alive 10W audio / 8 Functions With stay-alive connections				obsolete
	MX699K		50x40x14mm 6A continuous / 10A peak Stay-Alive Built In 10W audio With native stay-alive onboard 3F SuperCap stay-alive				MX699KS 8 AUX functions version na obsolete MX699KV Full 14 AUX functions version na obsolete
× Cancel	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.				£30
× Cancel	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.				£40