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828036 TSU-AT1000 Tsunami Cummins QSK19C x3 (GenSet) Diesel Sound Decoder for Atlas HO Genset Diesel Models

Price: $99.95
TopHobbyTrains Super Discount Price: $65.57
Your Savings: $34.38
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The SoundTraxx Tsunami Digital Sound Decoders are compatible with the NMRA Standards and Recommended Practices. 

note: These decoders will fit into many HO scale diesels. 

At Tsunami’s core is a true 32-bit Digital Signal Processor, or DSP, capable of executing over 120 million instructions per second. With this new level of performance, SoundTraxx was able to give Tsunami 14 functions, over 22 individual sounds, and 4 special effects including the ability to alter the exhaust sound automatically in response to changes in the engine load. The motor controller received numerous enhancements as well, including the use of high frequency PWM and load compensation. To keep the size down, only components available in highly miniaturized packages were selected for use in the Tsunami resulting in a form factor that measures almost 30% shorter and 50% thinner than the DSD-150.


  • Compatible with the NMRA DCC Standards and Recommended Practices
  • Supports 7 bit address modes for compatibility with 'simple' systems
  • Programmable acceleration, deceleration, starting voltage
  • Supports 14 bit address modes for addressing any Loco number up to 9,999
  • Supports programming on the main


  • Supports 14, 28, and 128 speed step modes
  • Speed interpolation provides smooth 128 speed step response in any mode
  • Programmable acceleration, deceleration, starting voltage
  • 7 bit consist addressing
  • 15 pre-programmed speed tables and 1 user programmable speed table
  • High Frequency Silent Motor Drive
  • Load Compensation


  • High quality digital sound
  • Individual, adjustable volume controls
  • One watt audio amplifier 
  • Polyphonic Sound Processor
  • 16-bit Audio Processing
  • Playable Whistle
  • 7-band Audio Equalizer
  • Reverb


  • 15 Lighting effects supporting “Rule 17” or automatic direction control

The Tsunami Digital Sound Decoder is rated for the following loads:

Motor Stall Current: 1 AMP Maximum
Function Current: 100mA (each output) 
Audio Amplifier: 1 Watt, 8 ohm load
Track Voltage: 27 Volts Maximum
Dimensions: 1.7"x0.67"x0.28"

Tsunami Digital Sound Decoders work with standard 8 ohm speakers available anywhere - no need to buy 'special' speakers!

Item Number: STX828036
Manufacturer: SoundTraxx
Mfr Part No: STX828036

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