SoundTraxx: Premium Model Train Sound Systems

SoundTraxx: Premium Model Train Sound Systems - Squeaky's Trains

SoundTraxx brings new dimensions in digital sound technology to your model railroad. Regardless of your scale or prototype, they have a sound system for you! They manufacture all of their Digital Sound Decoders in the USA, right here in Durango, Colorado. Their professional sound engineers record and edit their sound files and test their decoders multiple times before they ship to ensure top quality.

144 products

  • SoundTraxx 829100 Tsunami SoundCar Digital Sound Decoder for model trains SoundTraxx 829100 Tsunami SoundCar Digital Sound Decoder for model trains - package

    SoundTraxx SoundTraxx 829100 | Tsunami SoundCar Digital Sound Decoder

    1 review

    Out of stock

    The SoundTraxx 829100 is the Tsunami SoundCar — a 16-bit digital sound decoder built for rolling stock rather than locomotives. It has no motor drive at all; it exists to give your cabooses, passenger cars, reefers and stock cars their own sound and lighting. Because the sound comes from the train instead of the engine, you get running sound that moves down the consist: clickety-clack over the rail joints, flange squeal on curves, brake cylinders and coupler clank. SoundTraxx suggests roughly one SoundCar per third or fourth car rather than one in every car. Features 11 air horns and whistles: Nathan K5LA, K5LA Amtrak, K3L, K3LA and P3; Wabco AA2 and E2; Leslie S2B; Hancock air whistle; and two caboose whistles for shoving-platform work 5 bells: modern cast, bronze cast, cast, electronic and gong Clickety-clack configurable for 2-, 4- and 6-axle cars, plus flat spots, flange squeal and brake squeal Full brake system: independent and train brakes, brake cylinders, retainer bleed-off, train line charge, hand brake tie-down and untie, and an emergency “big hole” valve on E-stop Couplers: clank, pin drop and release with glad-hand separation Generators that behave correctly per car type — intermittent for a reefer, constant for a passenger car BeastBanter livestock: cattle or sheep, with a “spook the livestock” function for stock cars 4 lighting outputs with Hyperlight effects including FRED, firebox and stove flicker, and interior/exterior lighting CurrentKeeper ready — quick-plug socket for the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 829100 Model: Tsunami SoundCar Built For: Rolling stock — cabooses, passenger cars, cab cars, reefers, stock cars Scale: N through G scale Decoder Size: 47 x 14 x 8.5mm Connection: Universal-style board with bare, NMRA colour-coded wires Motor Drive: None — this decoder does not drive a motor Current Draw: 15 – 25mA at 14V Function Outputs: 4 (100mA each) Audio Amplifier: 8-Ohm speaker required (not included) Sound Resolution: 16-bit Functions: F0 – F12 Shop the full SoundTraxx range, compare every DCC decoder we stock, browse DCC speakers, or find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track. FAQ Does this go in a locomotive?No. The SoundCar has no motor drive — it is made for the cars behind the engine. Put a Tsunami2, Blunami or Econami in the locomotive and a SoundCar in the train. Do I need one in every car?No. SoundTraxx recommends about one per third or fourth car. The effect is a train that sounds alive along its length, not a row of identical speakers. Which cars is it for?All rolling stock. Cabooses, passenger and cab cars, reefers and stock cars. The generator behaves differently by car type and the clickety-clack is set by axle count, so it can be tuned per car. Is it a Tsunami2?No. It is the Tsunami SoundCar — 16-bit sound, but its own product built for rolling stock, not a Tsunami2 variant. Is a speaker included?No. Use any 8-ohm speaker that fits the car.

    Out of stock

    $51.16

  • SoundTraxx 810090 50 x 90mm Oval Speaker for DCC sound model train installations

    SoundTraxx SoundTraxx 810090 | 50 x 90mm Oval Speaker | Large Scale

    4 reviews

    Out of stock

    The SoundTraxx 810090 is the 50 x 90mm Oval Speaker. This is one of our largest speakers for use with the TSU-4400 in O-scale or larger models. Specifications Item Number: SoundTraxx 810090 Dimensions: 50 x 90 x37.5mm(D) Frequency Response: 230Hz - 20kHz Power: 2 Watts (Nominal) 5 Watts (Peak) Impedance: 8 Ohms More Information Browse all DCC speakers and DCC wiring, shop the full SoundTraxx range, or pick a decoder from our DCC decoders.

    Out of stock

    $15.16

  • SoundTraxx 881006 Econami ECO-21PNEM Steam 1-Amp Sound Decoder for model trains

    SoundTraxx SoundTraxx 881006 | Econami ECO-21PNEM (1-amp) Digital Steam Sound Decoder | HO Scale

    2 reviews

    Out of stock

    The SoundTraxx 881006 is an ECO-21PNEM Steam digital sound decoder. Econami is SoundTraxx’s value line: the same 16-bit sound and Hyperdrive2 motor control as Tsunami2, with a smaller sound library and a lower price. It carries 12 polyphonic sound channels and over 20 Hyperlight lighting effects. It is a full NMRA-compliant DCC decoder rated 1A, connecting by 21-pin dual-row bottom-entry nem connector. Features 16 whistles — Lunkenheimer, Hancock, Baldwin, ATSF, B&O, D&RGW, SP GS-4 No.4449, N&W No.611 and more 4 exhaust chuffs (light, medium, heavy, geared), 6 bells, 4 airpumps plus a vacuum pump, and 4 dynamos Dynamic Digital Exhaust (DDE) notches the exhaust to match the load on the motor Hyperdrive2 motor control for smooth, creep-speed switching Over 20 Hyperlight lighting effects across 6 function outputs 16-bit sound on 12 polyphonic channels, with a 7-band equalizer 28 functions, Flex-Map function remapping and switching mode CurrentKeeper ready — works with the SoundTraxx 810140 CurrentKeeper More Information Item Number: SoundTraxx 881006 Model: ECO-21PNEM Steam Sound Set: Econami Steam Decoder Size: 30.5 x 15.5mm Connection: 21-pin dual-row bottom-entry NEM connector Max. Motor Stall Current: 1A Function Outputs: 6 Audio Amplifier: 2 Watt, 8-Ohm Load DCC Track Voltage: 7V – 22V Sound Channels: 12 polyphonic Sound Resolution: 16-bit Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the Steam / Steam-2 decoders. A speaker is not included — browse DCC speakers rated 2 watt, 8-ohm or better, and find install parts in DCC wiring. Add a SoundTraxx 810140 CurrentKeeper to keep sound alive over dirty track. FAQ How is Econami different from Tsunami2?Both are 16-bit with Hyperdrive2 motor control, 28 functions and 20+ lighting effects. Econami has a smaller sound library (4 chuffs, 16 whistles and 6 bells against Tsunami2’s 10, 90 and 12), 12 sound channels instead of 16, and no reverb. If your prototype is covered by the list above, Econami saves you real money. Is a speaker included?No. Pair it with any 8-ohm speaker rated 2 watt or better that fits your shell. Does it have Dynamic Digital Exhaust?Yes. The Econami steam decoders include DDE, which notches the exhaust automatically with the load on the motor. Will it fit my locomotive?It measures 30.5 x 15.5mm and connects by 21-pin dual-row bottom-entry nem connector. Check that against the space in your shell before ordering.

    Out of stock

    $67.96

  • SoundTraxx 885625 BLU-4408 Blunami EMD-2 Bluetooth DCC sound decoder for model trains SoundTraxx 885625 BLU-4408 Blunami EMD-2 Bluetooth DCC sound decoder for model trains - package

    SoundTraxx SoundTraxx 885625 | BLU-4408 Blunami EMD-2 Diesel Sound Decoder | Multi Scale

    2 reviews

    Out of stock

    The SoundTraxx 885625 is a BLU-4408 Blunami digital sound decoder with the EMD-2 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 big-scale Blunami: a 4-amp motor rating and screw terminals instead of solder joints, suited to S, O and Large Scale. 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 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 885625 Model: BLU-4408 Blunami Sound Set: EMD-2 Diesel Scale: S, O and Large Scale Decoder Size: 69 x 30.5 x 14mm Connection: Screw terminal blocks (no soldering) Max. Motor Stall Current: 4A Function Outputs: 8 Audio Amplifier: 3 Watt, 8-Ohm Load 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 EMD-2 sound profile decoders. A speaker is not included — browse DCC speakers rated 3 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 3 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. EMD-2 or plain EMD — which do I want?This is the EMD-2 set: a second collection of less-common EMD prime movers, called out by cylinder count. The plain EMD set covers the more common 567/645/710 variants. Match the list above to your prototype. Will it fit my locomotive?This one measures 69 x 30.5 x 14mm and connects by screw terminal blocks (no soldering). Check the space in your shell against that footprint before ordering — other Blunami versions use different connectors and sizes.

    Out of stock

    $204.76

  • SoundTraxx 852001 MC1H102P8 DCC Mobile Decoder for model trains

    SoundTraxx SoundTraxx 852001 | DCC Mobile Decoder MC1H102P8 | HO Scale

    1 review

    Out of stock

    The SoundTraxx 852001 is the MC1H102P8 DCC mobile decoder — a motor and lighting decoder without sound, for HO scale locomotives. It is rated 1 amp and connects by nmra 8-pin direct plug. As an MC1 series decoder it operates on DCC only — it needs a command station and will not run on a plain DC power pack. Motor control is SoundTraxx Hyperdrive. Features DCC operation — requires a DCC command station 14 Hyperlight lighting effects across 2 function outputs — Mars Light, Pyle National Gyralite, single and dual strobes, Western-Cullen D312 rotary beacon, Prime Stratolite, Type I and II ditch lights with grade-crossing logic, dimmable headlight, Dyno-Light and FRED Rule 17 or directional lighting control, grade-crossing timers, adjustable flash rate and LED brightness correction Hyperdrive motor control for smooth low-speed running NMRA DCC compliant, made in Durango, Colorado More Information Item Number: SoundTraxx 852001 Model: MC1H102P8 Type: Mobile decoder — motor and lighting, no sound Scale: HO scale Decoder Size: 17 x 17 x 7mm Connection: NMRA 8-pin direct plug Max. Motor Stall Current: 1A Function Outputs: 2 (100mA each) Operating Modes: DCC only Max. Track Voltage: 22V Motor Control: Hyperdrive Shop the full SoundTraxx range, compare every DCC decoder we stock, or find install parts in DCC wiring. Want engine sound as well? Look at the sound decoders instead — this one is motor and lights only. FAQ Does this make engine sound?No. Mobile decoders drive the motor and lights only. For sound, choose a Tsunami2, Blunami or Econami sound decoder. Will it run on my DC power pack?No. This is an MC1 series decoder and is DCC only — it needs a command station. If you need DC too, choose an MC2 series decoder such as the 852002 or 852003. What does the model number mean?MC1H102P8 breaks down as: MC1 series (DCC only), H for HO scale, 1 amp, 02 function outputs, and the connector type. Will it fit my locomotive?It measures 17 x 17 x 7mm and connects by nmra 8-pin direct plug. Check that against your locomotive before ordering — the other MC decoders use different connectors and sizes.

    Out of stock

    $25.96

  • SoundTraxx 810119 28mm Speaker Gasket Kit for DCC sound model train installations

    SoundTraxx SoundTraxx 810119 | 28mm Speaker Gasket Kit

    Out of stock

    The SoundTraxx 810119 is the 28mm Speaker Gasket Kit. Package of four gaskets for mounting SoundTraxx 28mm round speakers (P.N. STX810054). More Information Browse all DCC speakers and DCC wiring, shop the full SoundTraxx range, or pick a decoder from our DCC decoders.

    Out of stock

    $6.20

  • SoundTraxx 885601 BLU-1100 Blunami EMD Bluetooth DCC sound decoder for model trains SoundTraxx 885601 BLU-1100 Blunami EMD Bluetooth DCC sound decoder for model trains - package

    SoundTraxx SoundTraxx 884606 | BLU-1100 Blunami Steam-2 Sound Decoder | N Scale

    1 review

    Out of stock

    The SoundTraxx 884606 is a BLU-1100 Blunami digital sound decoder with the Steam-2 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 most compact decoder in the Blunami line — small enough for N scale, suited to N, HO and small S scale. Features 90 selectable whistles — the Steam-2 library carries 27 more than the standard Steam set, most of them roadname-specific — plus 12 bells, 10 airpumps and 8 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 Independent and train brakes with adjustable rates 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 884606 Model: BLU-1100 Blunami Sound Set: Steam-2 Steam Scale: N, HO and small S scale Decoder Size: 31 x 10.5 x 5mm Connection: Hardwire (single wires) 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 Control Modes: DC, DCC and Bluetooth wireless Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other Steam-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 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 1 watt or better that fits your shell. How is Steam-2 different from the standard Steam set?The chuffs, bells, airpumps and dynamos are the same. The difference is the whistle library: Steam-2 offers 90 whistles versus 63 on the standard set, with many roadname-specific additions. Will it fit my locomotive?This one measures 31 x 10.5 x 5mm and connects by hardwire (single wires). Check the space in your shell against that footprint before ordering — other Blunami versions use different connectors and sizes.

    Out of stock

    $140.76

  • SoundTraxx 885623 BLU-21PNEM8 Blunami EMD-2 Bluetooth DCC sound decoder for model trains SoundTraxx 885623 BLU-21PNEM8 Blunami EMD-2 Bluetooth DCC sound decoder for model trains - package

    SoundTraxx SoundTraxx 885623 | BLU-21PNEM8 Blunami EMD-2 Diesel Sound Decoder

    Out of stock

    The SoundTraxx 885623 is a BLU-21PNEM8 Blunami digital sound decoder with the EMD-2 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 21-pin MTC plug-in Blunami, suited to HO scale and larger. 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 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 885623 Model: BLU-21PNEM8 Blunami Sound Set: EMD-2 Diesel Scale: HO scale and larger Decoder Size: 30.5 x 15.5 x 6.5mm Connection: NEM660 21MTC integral connector Max. Motor Stall Current: 1A Function Outputs: 8 Audio Amplifier: 2 Watt, 8-Ohm Load 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 EMD-2 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. EMD-2 or plain EMD — which do I want?This is the EMD-2 set: a second collection of less-common EMD prime movers, called out by cylinder count. The plain EMD set covers the more common 567/645/710 variants. Match the list above to your prototype. Will it fit my locomotive?This one measures 30.5 x 15.5 x 6.5mm and connects by nem660 21mtc integral connector. Check the space in your shell against that footprint before ordering — other Blunami versions use different connectors and sizes.

    Out of stock

    $135.96

  • SoundTraxx 884808 TSU-21PNEM8 Tsunami2 Steam-2 DCC sound decoder for model trains SoundTraxx 884808 TSU-21PNEM8 Tsunami2 Steam-2 DCC sound decoder for model trains - package

    SoundTraxx SoundTraxx 884808 | TSU-21PNEM8 Tsunami2 (1-amp) Steam-2 Sound Decoder

    Out of stock

    The SoundTraxx 884808 is a TSU-21PNEM8 Tsunami2 digital sound decoder with the Steam-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 21-pin MTC plug-in decoder, rated 1A and suited to HO scale and larger. 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 90 selectable whistles — 27 more than the standard Steam set — plus 10 exhaust chuffs, 12 bells, 10 airpumps and 8 dynamos Dynamic Digital Exhaust (DDE) matches exhaust volume and RPM 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 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 884808 Model: TSU-21PNEM8 Tsunami2 Sound Set: Steam-2 Steam Scale: HO scale and larger Decoder Size: 30.5 x 15.5 x 6.5mm Connection: 21-pin NEM (21MTC) plug Max. Motor Stall Current: 1A Function Outputs: 8 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 Steam-2 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 30.5 x 15.5 x 6.5mm and connects by 21-pin nem (21mtc) plug. 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. How is Steam-2 different from the standard Steam set?The chuffs, bells, airpumps and dynamos are the same. The difference is the whistle library: Steam-2 offers 90 whistles against 63 on the standard Steam set, with many roadname-specific additions. 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.

    Out of stock

    $98.36

  • SoundTraxx 884814 TSU-BH1 Tsunami2 Steam-2 DCC sound decoder for model trains SoundTraxx 884814 TSU-BH1 Tsunami2 Steam-2 DCC sound decoder for model trains - package

    SoundTraxx SoundTraxx 884814 | Tsunami2 TSU-BH2 Steam-2 Digital Sound Decoder

    Out of stock

    The SoundTraxx 884814 is a TSU-BH1 Tsunami2 digital sound decoder with the Steam-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 a drop-in board replacement for Bachmann Sound Value diesels, rated 2A and suited to HO scale Bachmann Sound Value diesels. 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 90 selectable whistles — 27 more than the standard Steam set — plus 10 exhaust chuffs, 12 bells, 10 airpumps and 8 dynamos Dynamic Digital Exhaust (DDE) matches exhaust volume and RPM 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 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 884814 Model: TSU-BH1 Tsunami2 Sound Set: Steam-2 Steam Scale: HO scale Bachmann Sound Value diesels Decoder Size: 97 x 16 x 7.7mm Connection: Drop-in replacement for the Bachmann Sound Value factory board 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 Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other Steam-2 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 97 x 16 x 7.7mm and connects by a drop-in replacement for the bachmann sound value factory board. 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. How is Steam-2 different from the standard Steam set?The chuffs, bells, airpumps and dynamos are the same. The difference is the whistle library: Steam-2 offers 90 whistles against 63 on the standard Steam set, with many roadname-specific additions. Which locomotives is the BH1 for?It is a drop-in replacement for the factory board in Bachmann Sound Value diesels, including the FA-2, FB-2, S-4, E7-A, F-7, SD70ACe, ES44AC, GP30, GP38-2, GP40, GP7, RS-3 and SD40-2. 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.

    Out of stock

    $98.36

  • SoundTraxx 885840 TSU-BH1 Tsunami2 EMD DCC sound decoder for model trains SoundTraxx 885840 TSU-BH1 Tsunami2 EMD DCC sound decoder for model trains - package

    SoundTraxx SoundTraxx 885840 | Tsunami2 TSU-BH1 EMD Diesel Digital Sound Decoder

    Out of stock

    The SoundTraxx 885840 is a TSU-BH1 Tsunami2 digital sound decoder with the EMD 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 drop-in board replacement for Bachmann Sound Value diesels, rated 2A and suited to HO scale Bachmann Sound Value diesels. 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 9 EMD prime movers: EMD 567 No Transition, EMD 567 Non-Turbo, EMD 567 Turbo, EMD Dual 567, EMD 645 Non-Turbo, EMD 645 Turbo, EMD Dual 645 Turbo, EMD 710 Turbo, EMD 710 G3C-T2 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 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 885840 Model: TSU-BH1 Tsunami2 Sound Set: EMD Diesel Scale: HO scale Bachmann Sound Value diesels Decoder Size: 97 x 16 x 7.7mm Connection: Drop-in replacement for the Bachmann Sound Value factory board 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 Shop the full SoundTraxx range, compare every DCC decoder we stock, or see the other EMD / EMD-2 Diesel 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 97 x 16 x 7.7mm and connects by a drop-in replacement for the bachmann sound value factory board. 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. Which prime movers do I get?All 9 listed above, selectable via CV 123. You are not locked to one engine sound — pick whichever matches your prototype. EMD or EMD-2 — which do I want?This is the EMD set: the common 567, 645 and 710 prime movers. The separate EMD-2 set carries a second group of less-common variants called out by cylinder count. Match the list above to your prototype. Which locomotives is the BH1 for?It is a drop-in replacement for the factory board in Bachmann Sound Value diesels, including the FA-2, FB-2, S-4, E7-A, F-7, SD70ACe, ES44AC, GP30, GP38-2, GP40, GP7, RS-3 and SD40-2. 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.

    Out of stock

    $98.36

  • SoundTraxx 851002 MC1Z102SQ DCC Mobile Decoder for model trains SoundTraxx 851002 MC1Z102SQ DCC Mobile Decoder for model trains - package

    SoundTraxx SoundTraxx 851002 | DCC Mobile Decoder MC1Z102SQ

    Out of stock

    The SoundTraxx 851002 is the MC1Z102SQ DCC mobile decoder — a motor and lighting decoder without sound, for Z and N scale locomotives. It is rated 1 amp and connects by attached wire harness (“squid cable”). As an MC1 series decoder it operates on DCC only — it needs a command station and will not run on a plain DC power pack. Motor control is SoundTraxx Hyperdrive. Features DCC operation — requires a DCC command station 14 Hyperlight lighting effects across 2 function outputs — Mars Light, Pyle National Gyralite, single and dual strobes, Western-Cullen D312 rotary beacon, Prime Stratolite, Type I and II ditch lights with grade-crossing logic, dimmable headlight, Dyno-Light and FRED Rule 17 or directional lighting control, grade-crossing timers, adjustable flash rate and LED brightness correction Hyperdrive motor control for smooth low-speed running NMRA DCC compliant, made in Durango, Colorado More Information Item Number: SoundTraxx 851002 Model: MC1Z102SQ Type: Mobile decoder — motor and lighting, no sound Scale: Z and N scale Decoder Size: 13 x 9 x 3mm Connection: attached wire harness (“squid cable”) Max. Motor Stall Current: 1A Function Outputs: 2 (100mA each) Operating Modes: DCC only Max. Track Voltage: 22V Motor Control: Hyperdrive Shop the full SoundTraxx range, compare every DCC decoder we stock, or find install parts in DCC wiring. Want engine sound as well? Look at the sound decoders instead — this one is motor and lights only. FAQ Does this make engine sound?No. Mobile decoders drive the motor and lights only. For sound, choose a Tsunami2, Blunami or Econami sound decoder. Will it run on my DC power pack?No. This is an MC1 series decoder and is DCC only — it needs a command station. If you need DC too, choose an MC2 series decoder such as the 852002 or 852003. What does the model number mean?MC1Z102SQ breaks down as: MC1 series (DCC only), Z for Z and N scale, 1 amp, 02 function outputs, and the connector type. Will it fit my locomotive?It measures 13 x 9 x 3mm and connects by attached wire harness (“squid cable”). Check that against your locomotive before ordering — the other MC decoders use different connectors and sizes.

    Out of stock

    $25.96

© 2026 Squeaky's Trains & Things, Powered by Shopify

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Visa

    Login

    Forgot your password?

    Don't have an account yet?
    Create account