The SoundTraxx 885841 is a TSU-BH1 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 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
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 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 885841
Model:
TSU-BH1 Tsunami2
Sound Set:
GE 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 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
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 8 listed above, selectable via CV 123. You are not locked to one engine sound — pick whichever matches 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.
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