Description
The SoundTraxx 884012 TSU-2200 Big Steam is a 2-amp universal Tsunami2 Digital Sound Decoder factory-loaded with the Big Steam sound profile — purpose-built for large articulateds and heavy steam power.
Prime mover: Large / articulated steam — features a true UP Big Boy recording, dual chuff exhaust for compound / simple articulateds (Mallets, Challengers, Big Boys, Y-class), Yellowstones, and large 4-8-4 / 2-10-4 heavy power. Up to 12 prime movers / 12 bells / 90 whistles / 40+ airhorns in the library.
- Scale fit: HO and S (also fits some larger scales)
- Format / connector: Universal (9-pin JST Quick Plug + bare wires)
- Function outputs: 6
- Max motor stall current: 2 A
- Dimensions: 35 x 18 x 6 mm
- Tsunami2 sound: Dynamic Digital Exhaust (reactive to throttle / load), functioning locomotive + train brakes, injectors, power reverse, firebox flicker, 16 sound channels, library of prime movers + horns/whistles + bells
- Hyperlight lighting effects: Mars, Gyralight, Rotary beacon, Single/Double Strobe, Ditch, etc.
- Audio amplifier: 2 W into 8 Ω
- DCC track voltage: 7 – 22 V
- Compliance: Standard NMRA DCC (DC + DCC dual mode)
- Special features: 10 exhaust chuffs, dual chuff for articulateds, Reactive Dynamic Digital Exhaust, firebox flicker
- SoundTraxx SKU: 884012 (Walthers 678-884012)
Tip: The Big Steam library is the only Tsunami2 with dual chuff sets — essential for any articulated steam install. Pair with two Mega Bass speakers (810131 wired in series for 16 Ω) for serious low-end.
About SoundTraxx: A USA-made DCC decoder and sound-system specialist founded in 1990 (Durango, Colorado). Product lines: Tsunami2 (premium full-feature digital sound decoders), Econami (value-priced sound decoders), Blunami (Bluetooth-controllable sound), and DCC Mobile Decoders (motor + lighting, no sound). Range also includes miniature speakers (round / oval / Mega Bass / Mini Cube), the CurrentKeeper stay-alive supercap module, and a full set of Quick-Plug harnesses and adapters for clean installs.
In stock at Oakville Model Trains Depot.