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Soundtraxx Tsunami 2 TSU-PNP Sound Decoder, EMD Diesels

$109.95 $87.96 (You save $21.99)

0.12 LBS
Calculated at checkout

The Soundtraxx Tsunami 2 TSU-PNP is a factory board replacement sound decoder suitable for use in many manufacturer’s locomotives such as Atlas, Athearn, Kato, and InterMountain Models. It is suitable for a wide variety of models from HO to S scale, and includes a connector to easily add a CurrentKeeper (STX-810140) to maintain performance over dirty track and switches.

TSU-PNP Specifications

  • Dimensions: 73.7 x 16.8 x 4.8mm
  • Max. Motor Stall Current: 2A
  • Function Outputs: 6
  • Max. Function Current: 100mA (each output)
  • Audio Amplifier: 2 Watts, 8-Ohm Load
  • DCC Track Voltage: 7.5V – 22V
  • Replacement board style decoder

Diesel Features

Tsunami 2 diesel sound decoders are full of new features including over 50 sound effects including engine startup and shutdown, engine prime mover through all eight notches, Straight-to-8, HEP mode, 13 bells, over 40 airhorns, 4 air compressors, dynamic brakes, radiator fans, brake squeal, and more!

  • Contains up to 9 manufacturer specific prime movers (Turbo, Non-turbo, etc.)
  • First ever Diesel Dynamic Digital Exhaust (DDE) for a more authentic operating experience
  • Startup, shutdown and exhaust through 8 notches
  • Automatic or manual notching
  • Functioning dynamic brake with variable load sound and adjustable braking rate
  • Over 40 air horns
  • Selectable compressors, bells, and couplers
  • First ever Fireman Ed is ready to work on the locomotive, with general service, cab sounds and more!
  • Clickety-clack, fueling, and authentic cab chatter add realism
  • Prototypically correct HEP modes and steam heat for authentic passenger train operations

Diesel Sounds

  • EMD 567 (No Transition)
  • EMD 567 Non-Turbo
  • EMD 567D Turbo
  • EMD Dual 567
  • EMD 645 Non-Turbo
  • EMD 645 Turbo
  • EMD Dual 645 Turbo
  • EMD 710
  • EMD 710 G3C-T2
  • Over 40 Air Horns

Listen to Sound Samples



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  1. Great produvt. Easy to install. Great sound 5

    Posted by Unknown on Aug 16th 2018

    Impressed with the Soundtraxx products, their quality and ease of installing. Used this sound decoder for replacement into an Atlas Master Series GP-38.