DCC Decoders

The Digitrax DH187A0 is a drop-in light board replacement for HO locomotives - you unscrew the factory DC light board and this Series 7 decoder takes its place, keeping the original lighting positions. It is the standard fit for many Kato, Athearn Genesis and Stewart models, and it brings eight FX7 function outputs at 300mA, far more lighting capability than a two-function decoder. Building a DCC fleet? Browse our DCC Decoders, DCC Speakers, and DCC Accessories. Features Drop-in light board replacement - swaps for the factory DC board in many Kato, Athearn Genesis, Stewart and similar HO locomotives. No harness to route. 8 FX7 function outputs at 300mA - enough for headlights, ditch lights, number boards, cab light and class lights, with prototypical effects on each. 1.0 amp continuous, 2.0 amps peak - ample for single-motor HO diesels. Series 7 platform with back-EMF speed stabilisation for steady low-speed control. Standard NMRA DCC - runs and programs on any DCC system, not just Digitrax. More Information Brand Digitrax Item Number DH187A0 Product Type DCC Mobile Decoder (Drop-In Board) Scale HO Motor Current 1.0 A continuous / 2.0 A peak Function Outputs 8 x FX7, 300 mA Connection Direct board replacement Series Digitrax Series 7 Sound No - motor and function decoder only Condition New FAQ How do I know it will fit my locomotive?Drop-in boards are shape-specific. Pull the shell and compare the factory board footprint, mounting clips and light positions against the DH187A0. It is the usual fit for many Kato, Athearn Genesis and Stewart HO diesels, but check yours before ordering - if it does not match, a wired decoder such as the DH127D is the fallback. Why choose a drop-in board over a plug-in decoder?No harness and no wire to hide, and the lighting stays where the manufacturer put it. On models where the light board also carries the motor contacts, a drop-in is usually the cleanest install you can do. What can I do with eight function outputs?Headlight and rear headlight, ditch lights that alternate with the horn, number boards, cab light, class lights - each output can be assigned its own effect and dimming via CV settings. Does it have sound?No. This is a motor and function decoder. For sound in HO, look at a Digitrax SDXH series decoder or a SoundTraxx unit, plus a speaker.

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The SoundTraxx 885614 is a BLU-PNP8 Blunami digital sound decoder with the GE sound set. Blunami is a Tsunami2 with a Bluetooth radio added, so it runs three ways: as a normal DCC decoder on any NMRA-compliant system, on plain DC, or in wireless mode straight from your phone or tablet. Wireless mode needs no command station and no programming track — an old DC power pack and the free Blunami app are enough, and CVs can be read and changed over Bluetooth while the locomotive is running. The app is free for iOS and Android. This version is a drop-in replacement for the factory AT-style board in many HO diesels, suited to HO to S scale. Features 8 GE prime movers: GE FDL-12, GE FDL-16, GE 7FDL-16, GE Dual FDL-16, GE GEVO G12, GE 44-Ton Center Cab Dual Caterpillar, GE Cummins Switcher, GEVO G12 Tier 4 Over 40 air horns and 13 bells, plus air compressors, couplers and dynamos Bluetooth control from the free Blunami app (iOS and Android) — over 300 settings without editing a single CV by hand Dynamic Digital Exhaust (DDE) automatically matches exhaust volume and RPM to the load on the motor, and the app calibrates it for you Three braking types: independent, train and dynamic braking Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 8 function outputs 16 polyphonic sound channels on a 32-bit processor, with a 7-band equalizer and adjustable reverb CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 885614 Model: BLU-PNP8 Blunami Sound Set: GE Diesel Scale: HO to S scale Decoder Size: 74 x 17 x 5mm Connection: Drop-in AT-style board replacement Max. Motor Stall Current: 2A Function Outputs: 8 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16 polyphonic Processor: 32-bit, 28 functions Control Modes: DC, DCC and Bluetooth wireless Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other GE sound profile decoders. A speaker is not included — browse DCC speakers rated 2 watt or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track and turnouts. FAQ Do I need a DCC system to use this?No. That is the point of Blunami. It runs on a plain DC power pack with no command station at all — you control it from the free Blunami app over Bluetooth. It is also a fully NMRA-compliant DCC decoder if you already run DCC. Does the app work on Android?Yes. The free Blunami app is published for both iOS and Android. (Some older listings and dealer pages still say iOS only — that is out of date.) Is a speaker included?No. Pair it with an 8-ohm speaker rated 2 watt or better that fits your shell. Which prime movers do I get?All 8 listed above, selectable in the app or via CV 123. You are not locked to one engine sound — pick whichever matches your prototype. Will it fit my locomotive?This one measures 74 x 17 x 5mm and connects by drop-in at-style board replacement. Check the space in your shell against that footprint before ordering — other Blunami versions use different connectors and sizes.

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The SoundTraxx 885607 is a BLU-2200 Blunami digital sound decoder with the ALCO sound set. Blunami is a Tsunami2 with a Bluetooth radio added, so it runs three ways: as a normal DCC decoder on any NMRA-compliant system, on plain DC, or in wireless mode straight from your phone or tablet. Wireless mode needs no command station and no programming track — an old DC power pack and the free Blunami app are enough, and CVs can be read and changed over Bluetooth while the locomotive is running. The app is free for iOS and Android. This version is the universal-style Blunami that fits most HO diesels, suited to HO and small S scale. Features 9 ALCO prime movers: ALCO 539 Turbo, ALCO 539 Non-Turbo, ALCO 244 Turbo, ALCO 251A i6, ALCO 251C v12, ALCO 251C v12 Super Charged, ALCO 251C v12 Century Series, ALCO 251C v16, ALCO 251C v16 Super Charged Over 40 air horns and 13 bells, plus air compressors, couplers and dynamos Bluetooth control from the free Blunami app (iOS and Android) — over 300 settings without editing a single CV by hand Dynamic Digital Exhaust (DDE) automatically matches exhaust volume and RPM to the load on the motor, and the app calibrates it for you Three braking types: independent, train and dynamic braking Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 6 function outputs 16 polyphonic sound channels on a 32-bit processor, with a 7-band equalizer and adjustable reverb CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 885607 Model: BLU-2200 Blunami Sound Set: ALCO Diesel Scale: HO and small S scale Decoder Size: 35 x 18 x 6mm Connection: NMRA 9-pin JST harness to hardwire Max. Motor Stall Current: 2A Function Outputs: 6 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16 polyphonic Processor: 32-bit, 28 functions Control Modes: DC, DCC and Bluetooth wireless Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other ALCO sound profile decoders. A speaker is not included — browse DCC speakers rated 2 watt or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track and turnouts. FAQ Do I need a DCC system to use this?No. That is the point of Blunami. It runs on a plain DC power pack with no command station at all — you control it from the free Blunami app over Bluetooth. It is also a fully NMRA-compliant DCC decoder if you already run DCC. Does the app work on Android?Yes. The free Blunami app is published for both iOS and Android. (Some older listings and dealer pages still say iOS only — that is out of date.) Is a speaker included?No. Pair it with an 8-ohm speaker rated 2 watt or better that fits your shell. Which prime movers do I get?All 9 listed above, selectable in the app or via CV 123. You are not locked to one engine sound — pick whichever matches your prototype. Will it fit my locomotive?This one measures 35 x 18 x 6mm and connects by nmra 9-pin jst harness to hardwire. Check the space in your shell against that footprint before ordering — other Blunami versions use different connectors and sizes.

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The SoundTraxx 885030 is a TSU-N18 Tsunami2 digital sound decoder with the EMD-2 sound set. Tsunami2 combines a 16-bit sound system, Hyperdrive2 motor control, Hyperlight lighting effects and a full NMRA-compliant DCC decoder on one board, driven by a 32-bit processor with 16 polyphonic sound channels. This version is the Next18 decoder for N and small HO models, rated 1A and suited to N and small HO models with a Next18 socket. Dynamic Digital Exhaust reads the load on the motor and notches the engine up and down on its own, so the locomotive sounds like it is working for its train. Features 8 EMD-2 prime movers: EMD 567 12-cylinder (no transition), EMD 567C 16-cylinder non-turbo, EMD 645E 12-cylinder non-turbo, EMD 645E 12-cylinder turbo, EMD 645F 16-cylinder turbo, EMD 645E 20-cylinder turbo, EMD 710G 12-cylinder, EMD 710G 16-cylinder Over 40 air horns and 13 bells, plus air compressors, couplers and dynamos Dynamic Digital Exhaust (DDE) matches exhaust volume and RPM to the load on the motor automatically Three braking types: independent, train and dynamic braking Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 6 function outputs 16 polyphonic sound channels on a 32-bit processor, with a 7-band equalizer and adjustable reverb CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 885030 Model: TSU-N18 Tsunami2 Sound Set: EMD-2 Diesel Scale: N and small HO models with a Next18 socket Decoder Size: 25 x 9.5 x 4.1mm Connection: Next18 (N18) socket Max. Motor Stall Current: 1A Function Outputs: 6 Audio Amplifier: 1 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16 polyphonic Processor: 32-bit, 28 functions Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other EMD-2 sound profile decoders. A speaker is not included — browse DCC speakers rated 1 watt or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track and turnouts. FAQ Will this fit my locomotive?It measures 25 x 9.5 x 4.1mm and connects by next18 (n18) socket. Check that against the space in your shell before ordering — other Tsunami2 versions use different connectors and sizes. Is a speaker included?No. Pair it with an 8-ohm speaker rated 1 watt or better that fits your shell. Which prime movers do I get?All 8 listed above, selectable via CV 123. You are not locked to one engine sound — pick whichever matches your prototype. EMD-2 or plain EMD — which do I want?This is the EMD-2 set: less-common EMD prime movers, named by cylinder count. The plain EMD set covers the more common 567/645/710 variants. Does it run on DC?Yes. Tsunami2 runs on a standard DC power pack as well as DCC, though sound and lighting options are limited on DC. Full function control needs a DCC system.

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The SoundTraxx 885004 is a TSU-1100 Tsunami2 digital sound decoder with the Baldwin & Other sound set. Tsunami2 combines a 16-bit sound system, Hyperdrive2 motor control, Hyperlight lighting effects and a full NMRA-compliant DCC decoder on one board, driven by a 32-bit processor with 16 polyphonic sound channels. This version is a compact universal-style decoder for tight installs, rated 1A and suited to small models with minimal space. Dynamic Digital Exhaust reads the load on the motor and notches the engine up and down on its own, so the locomotive sounds like it is working for its train. Features 12 Baldwin & Other prime movers: Baldwin VO, Baldwin 608NA, Baldwin 608A, Baldwin 606NA, Rio Grande Southern Galloping Goose, Dual Whitcomb, Fairbanks-Morse, GE GTEL UP “Slab Side”, GE GTEL UP “Veranda”, GE GTEL UP “Big Blow” A unit, GE GTEL UP “Big Blow” B unit, Cummins QSK19C x3 GenSet Over 40 air horns and 13 bells, plus air compressors, couplers and dynamos Dynamic Digital Exhaust (DDE) matches exhaust volume and RPM to the load on the motor automatically Three braking types: independent, train and dynamic braking Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 4 function outputs 16 polyphonic sound channels on a 32-bit processor, with a 7-band equalizer and adjustable reverb CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 885004 Model: TSU-1100 Tsunami2 Sound Set: Baldwin & Other Diesel Scale: small models with minimal space Decoder Size: 27 x 10.5 x 5mm Connection: Universal-style hardwire Max. Motor Stall Current: 1A Function Outputs: 4 Audio Amplifier: 1 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16 polyphonic Processor: 32-bit, 28 functions Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other Baldwin & Other sound profile decoders. A speaker is not included — browse DCC speakers rated 1 watt or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track and turnouts. FAQ Will this fit my locomotive?It measures 27 x 10.5 x 5mm and connects by universal-style hardwire. Check that against the space in your shell before ordering — other Tsunami2 versions use different connectors and sizes. Is a speaker included?No. Pair it with an 8-ohm speaker rated 1 watt or better that fits your shell. Which prime movers do I get?All 12 listed above, selectable via CV 123. You are not locked to one engine sound — pick whichever matches your prototype. Does it run on DC?Yes. Tsunami2 runs on a standard DC power pack as well as DCC, though sound and lighting options are limited on DC. Full function control needs a DCC system.

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Maximize your model railway's efficiency with the Digitrax DHDP DC dummy plugs. This pack of 5 dummy plugs are specifically designed for HO scale models, improving performance and ensuring reliable operation. Experience seamless connectivity and enhanced functionality with the Digitrax DHDP. Lets you run locos as DC or DCC For DC only operation use the dummy plug with either DHWH or DHWHPS For DCC operation remove the DNDP and replace with a decoder 5-Pack More Information Item # DHDP  Brand Digitrax  MSRP $22.00 TCA Grading C-10 Mint - Brand New Availability In-Stock/Restockable Manuals Instruction Sheet, Specification Sheet, Decoder Manual V1, Decoder Manual V2 (01/2014)

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The TCS A4X is a four-function HO-scale "drop-in" DCC mobile decoder for popular Atlas, Athearn, and Kato diesels — a clean, no-solder upgrade on supported models. Examples include the Athearn F59PHI and F3; Atlas RS-1, RS-3, RS-11, C424, and GP7; and the Kato GP35. If you need more than four functions or plan to run 1.5V bulbs, step up to the A6X. Browse more DCC Decoders and DCC Accessories, or shop the full Train Control Systems lineup. Features Four-function HO drop-in mobile decoder for supported Atlas, Athearn, and Kato diesels. Back-EMF load compensation for superior slow-speed control under load. Quiet Drive super-quiet motor control for buzz-free running. No-solder installation on supported drop-in locomotives. Step up to the A6X for six functions or 1.5V bulbs. More Information Brand Train Control Systems (TCS) Item Number 1000 (A4X) Type DCC Mobile Decoder (drop-in) Functions 4 Fits Many Atlas / Athearn / Kato HO diesels Scale HO Scale Condition New FAQ Will it fit my locomotive?The A4X drops into many Atlas, Athearn, and Kato HO diesels (for example Athearn F59PHI/F3; Atlas RS-1/RS-3/RS-11/C424/GP7; Kato GP35). Check the TCS drop-in chart for your model. Does it include sound?No — it is a motor and function (mobile) decoder. For sound, see the TCS WOW series. A4X or A6X?The A4X covers four-function installs; choose the A6X if you need six functions or the 1.5V bulb supply.

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The SoundTraxx 886002 is a TSU-2200 Tsunami2 digital sound decoder with the Electric sound set. Tsunami2 combines a 16-bit sound system, Hyperdrive2 motor control, Hyperlight lighting effects and a full NMRA-compliant DCC decoder on one board, driven by a 32-bit processor with 16 polyphonic sound channels. This version is the universal-style decoder that fits most HO diesels, rated 2A and suited to HO to S scale. Dynamic Digital Exhaust reads the load on the motor and notches the traction motor up and down on its own, so the locomotive sounds like it is working for its train. Features AC traction motor sound with pantograph up/down (interlocked so the loco will not move with the pantograph down), trolley bell, stop-request bell, pneumatic doors and cab chatter Dynamic Digital Exhaust (DDE) matches traction motor sound to the load on the motor automatically Independent and train brakes with adjustable rates Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 6 function outputs 16 polyphonic sound channels on a 32-bit processor, with a 7-band equalizer and adjustable reverb CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 886002 Model: TSU-2200 Tsunami2 Sound Set: Electric Electric Scale: HO to S scale Decoder Size: 35 x 18 x 6mm Connection: Universal-style hardwire with an NMRA 9-pin JST harness Max. Motor Stall Current: 2A Function Outputs: 6 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16 polyphonic Processor: 32-bit, 28 functions Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other Electric sound profile decoders. A speaker is not included — browse DCC speakers rated 2 watt or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track and turnouts. FAQ Will this fit my locomotive?It measures 35 x 18 x 6mm and connects by universal-style hardwire with an nmra 9-pin jst harness. Check that against the space in your shell before ordering — other Tsunami2 versions use different connectors and sizes. Is a speaker included?No. Pair it with an 8-ohm speaker rated 2 watt or better that fits your shell. Does it run on DC?Yes. Tsunami2 runs on a standard DC power pack as well as DCC, though sound and lighting options are limited on DC. Full function control needs a DCC system.

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The SoundTraxx 885615 is a BLU-PNP8 Blunami digital sound decoder with the ALCO sound set. Blunami is a Tsunami2 with a Bluetooth radio added, so it runs three ways: as a normal DCC decoder on any NMRA-compliant system, on plain DC, or in wireless mode straight from your phone or tablet. Wireless mode needs no command station and no programming track — an old DC power pack and the free Blunami app are enough, and CVs can be read and changed over Bluetooth while the locomotive is running. The app is free for iOS and Android. This version is a drop-in replacement for the factory AT-style board in many HO diesels, suited to HO to S scale. Features 9 ALCO prime movers: ALCO 539 Turbo, ALCO 539 Non-Turbo, ALCO 244 Turbo, ALCO 251A i6, ALCO 251C v12, ALCO 251C v12 Super Charged, ALCO 251C v12 Century Series, ALCO 251C v16, ALCO 251C v16 Super Charged Over 40 air horns and 13 bells, plus air compressors, couplers and dynamos Bluetooth control from the free Blunami app (iOS and Android) — over 300 settings without editing a single CV by hand Dynamic Digital Exhaust (DDE) automatically matches exhaust volume and RPM to the load on the motor, and the app calibrates it for you Three braking types: independent, train and dynamic braking Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 8 function outputs 16 polyphonic sound channels on a 32-bit processor, with a 7-band equalizer and adjustable reverb CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 885615 Model: BLU-PNP8 Blunami Sound Set: ALCO Diesel Scale: HO to S scale Decoder Size: 74 x 17 x 5mm Connection: Drop-in AT-style board replacement Max. Motor Stall Current: 2A Function Outputs: 8 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16 polyphonic Processor: 32-bit, 28 functions Control Modes: DC, DCC and Bluetooth wireless Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other ALCO sound profile decoders. A speaker is not included — browse DCC speakers rated 2 watt or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track and turnouts. FAQ Do I need a DCC system to use this?No. That is the point of Blunami. It runs on a plain DC power pack with no command station at all — you control it from the free Blunami app over Bluetooth. It is also a fully NMRA-compliant DCC decoder if you already run DCC. Does the app work on Android?Yes. The free Blunami app is published for both iOS and Android. (Some older listings and dealer pages still say iOS only — that is out of date.) Is a speaker included?No. Pair it with an 8-ohm speaker rated 2 watt or better that fits your shell. Which prime movers do I get?All 9 listed above, selectable in the app or via CV 123. You are not locked to one engine sound — pick whichever matches your prototype. Will it fit my locomotive?This one measures 74 x 17 x 5mm and connects by drop-in at-style board replacement. Check the space in your shell against that footprint before ordering — other Blunami versions use different connectors and sizes.

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The SoundTraxx 885616 is a BLU-PNP8 Blunami digital sound decoder with the Baldwin & Other sound set. Blunami is a Tsunami2 with a Bluetooth radio added, so it runs three ways: as a normal DCC decoder on any NMRA-compliant system, on plain DC, or in wireless mode straight from your phone or tablet. Wireless mode needs no command station and no programming track — an old DC power pack and the free Blunami app are enough, and CVs can be read and changed over Bluetooth while the locomotive is running. The app is free for iOS and Android. This version is a drop-in replacement for the factory AT-style board in many HO diesels, suited to HO to S scale. Features 12 Baldwin & Other prime movers: Baldwin VO, Baldwin 608NA, Baldwin 608A, Baldwin 606NA, Rio Grande Southern Galloping Goose, Dual Whitcomb, Fairbanks-Morse, GE GTEL UP “Slab Side”, GE GTEL UP “Veranda”, GE GTEL UP “Big Blow” A unit, GE GTEL UP “Big Blow” B unit, Cummins QSK19C x3 GenSet Over 40 air horns and 13 bells, plus air compressors, couplers and dynamos Bluetooth control from the free Blunami app (iOS and Android) — over 300 settings without editing a single CV by hand Dynamic Digital Exhaust (DDE) automatically matches exhaust volume and RPM to the load on the motor, and the app calibrates it for you Three braking types: independent, train and dynamic braking Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 8 function outputs 16 polyphonic sound channels on a 32-bit processor, with a 7-band equalizer and adjustable reverb CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 885616 Model: BLU-PNP8 Blunami Sound Set: Baldwin & Other Diesel Scale: HO to S scale Decoder Size: 74 x 17 x 5mm Connection: Drop-in AT-style board replacement Max. Motor Stall Current: 2A Function Outputs: 8 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16 polyphonic Processor: 32-bit, 28 functions Control Modes: DC, DCC and Bluetooth wireless Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other Baldwin & Other sound profile decoders. A speaker is not included — browse DCC speakers rated 2 watt or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track and turnouts. FAQ Do I need a DCC system to use this?No. That is the point of Blunami. It runs on a plain DC power pack with no command station at all — you control it from the free Blunami app over Bluetooth. It is also a fully NMRA-compliant DCC decoder if you already run DCC. Does the app work on Android?Yes. The free Blunami app is published for both iOS and Android. (Some older listings and dealer pages still say iOS only — that is out of date.) Is a speaker included?No. Pair it with an 8-ohm speaker rated 2 watt or better that fits your shell. Which prime movers do I get?All 12 listed above, selectable in the app or via CV 123. You are not locked to one engine sound — pick whichever matches your prototype. Will it fit my locomotive?This one measures 74 x 17 x 5mm and connects by drop-in at-style board replacement. Check the space in your shell against that footprint before ordering — other Blunami versions use different connectors and sizes.

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The SoundTraxx 885027 is a TSU-N18 Tsunami2 digital sound decoder with the GE sound set. Tsunami2 combines a 16-bit sound system, Hyperdrive2 motor control, Hyperlight lighting effects and a full NMRA-compliant DCC decoder on one board, driven by a 32-bit processor with 16 polyphonic sound channels. This version is the Next18 decoder for N and small HO models, rated 1A and suited to N and small HO models with a Next18 socket. Dynamic Digital Exhaust reads the load on the motor and notches the engine up and down on its own, so the locomotive sounds like it is working for its train. Features 8 GE prime movers: GE FDL-12, GE FDL-16, GE 7FDL-16, GE Dual FDL-16, GE GEVO G12, GE 44-Ton Center Cab Dual Caterpillar, GE Cummins Switcher, GEVO G12 Tier 4 Over 40 air horns and 13 bells, plus air compressors, couplers and dynamos Dynamic Digital Exhaust (DDE) matches exhaust volume and RPM to the load on the motor automatically Three braking types: independent, train and dynamic braking Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 6 function outputs 16 polyphonic sound channels on a 32-bit processor, with a 7-band equalizer and adjustable reverb CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 885027 Model: TSU-N18 Tsunami2 Sound Set: GE Diesel Scale: N and small HO models with a Next18 socket Decoder Size: 25 x 9.5 x 4.1mm Connection: Next18 (N18) socket Max. Motor Stall Current: 1A Function Outputs: 6 Audio Amplifier: 1 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 16 polyphonic Processor: 32-bit, 28 functions Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other GE sound profile decoders. A speaker is not included — browse DCC speakers rated 1 watt or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track and turnouts. FAQ Will this fit my locomotive?It measures 25 x 9.5 x 4.1mm and connects by next18 (n18) socket. Check that against the space in your shell before ordering — other Tsunami2 versions use different connectors and sizes. Is a speaker included?No. Pair it with an 8-ohm speaker rated 1 watt or better that fits your shell. Which prime movers do I get?All 8 listed above, selectable via CV 123. You are not locked to one engine sound — pick whichever matches your prototype. Does it run on DC?Yes. Tsunami2 runs on a standard DC power pack as well as DCC, though sound and lighting options are limited on DC. Full function control needs a DCC system.

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The TCS FL4 is a function-only DCC decoder for any scale, adding up to four extra lighting and effect outputs wherever you need them — commonly used for smoke coils, fireboxes, ditch lights, and step lights. Note: FL-series "Fleet Lighter" decoders do not provide motor control, so pair the FL4 with a separate mobile decoder. Browse more DCC Decoders and DCC Accessories, or shop the full Train Control Systems lineup. Features Function-only decoder — adds up to four lighting and effect outputs. Works in any scale; great for smoke coils, fireboxes, ditch lights, and step lights. Pairs with any mobile (motor) decoder — the FL4 handles lights only. Compact "Fleet Lighter" design fits where a full decoder will not. More Information Brand Train Control Systems (TCS) Item Number 1004 (FL4) Type Function-Only DCC Decoder (Fleet Lighter) Functions 4 Motor Control No (function-only) Scale Any Scale Condition New FAQ Does the FL4 control the motor?No — FL-series decoders are function-only. Use a separate mobile decoder for the motor and let the FL4 drive extra lights and effects. What is it used for?Lighting and effects the main decoder cannot handle — smoke coils, fireboxes, ditch lights, step lights, and similar. What scales can use it?Any scale — it is a small, universal function decoder.

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