Soundtraxx/Tsunami Accessories

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Accessory Decoderssoundtraxx_logo_180px

SoundTraxx® now offers a lighting decoder for the Blackstone Models™ HOn3 D&RGW Open Platform Jackson and Sharp Passenger Coach, and for the Blackstone Models HOn3 Long Caboose.

Long Caboose Lighting Decoder



Item Description MSRP Lin’s Price
678-810137 Long Caboose Lighting Decoder $39.95 $34.00

Passenger Coach Lighting Kit



Item Description MSRP Lin’s Price
678-810136 Passenger Coach Lighting Kit $39.95 $34.00

Current Keeper



DCC accessory maintains power to the decoder for up to 10 seconds during electrical interruptions.
Item Description MSRP Lin’s Price
678-810140 Current Keeper $26.95 $22.90

SoundCar™ Digital Sound Decoder™

Item Description MSRP Lin’s Price



678-829100 Tsunami SoundCar $59.95 $51.00
678-829110 Tsunami SoundCar 3-pack $135.00 $114.75

Now your train is no longer limited to locomotive sounds! The 16-bit Tsunami SoundCar Digital Sound Decoder™ is the only DCC decoder to replicate railcar sounds, such as the clickety-clack, flange squeal, flat spots, generator, brake cylinders, and glad hand release. It also includes a selection of user-adjustable horns, bells and whistles for cab cars and cabooses. For even more realism, the decoder has four Hyperlight lighting outputs for interior and exterior lights.

These universal-style decoders measure 47mm x 14mm x 8.5mm and are easy to install in N to G scales. They work with any 8-ohm speaker. For the optimal experience, use a SoundCar decoder in every third or fourth car in a consist.
The SoundCar also includes a 2-pin plug for optionally using the SoundTraxx CurrentKeeper™ to maintain sounds and lights during momentary power losses due to finicky wheel pickups and not-so-perfect track.

BIG Sound Features!
The SoundCar decoder features many new and accurate recordings, most of which can be customized to accommodate a variety of rolling stock. Furthermore, the decoder has automated sound sequences and auto-adjusting features for more realistic operation.

SoundCar Sound Effects

  • Brake cylinders
  • Brake squeal
  • Clickety-clack: Adjustable for 2-, 4- and 6-axle cars
  • Coupler clank and pin drop
  • Coupler release with glad hand separation
  • Flange squeal
  • Flat spots
  • Emergency brake valve (“big hole”): Activated when the emergency stop button is pressed
  • Generators: User-adjustable for reefers and passenger cars
  • Hand brake tie down and untie
  • Multiple airhorns, air whistle and bells with adjustable ring rates for cab cars and cabooses
  • Airhorns: Wabco E2, Nathan K5LA and Hancock air whistle
  • Bells: Cast, electronic and gong
  • Retainer bleed-off

Intelligent Consisting — Consisting Made Easy

With the SoundCar, your switching sessions can be more realistic than ever! Our easy-to-use Intelligent Consisting™ lets you add and remove cars from your train without tricky programming. When the mode is activated, you can simply wave a magnet over the cars to quickly cut them in or out of the consist. Just like a brakeman with a brake club, this action is synced with a sound effect of the car’s hand brakes being tied or untied.

Brilliant Lighting Effects

The SoundCar includes four Hyperlight lighting outputs for adding interior and exterior lights. The effects can simulate interior coach lights, marker lamps, flashing rear-end devices (FRED), and more.

Programming Track Booster



The PTB-100 Programming Track Booster is a handy tool for anyone who uses DCC! This device facilitates programming as well as gives some comforting feedback during the programming process. You will instantly know if your decoder has received the programming instruction (or not!) by way of indicator lights on the circuit board. So why might you want (or need) a PTB-100? Certain command stations allow you to read a CV during Service Mode programming, which is useful to verify its current setting.  Sometimes trouble reading or verifying CVs may be due to the design of the command station and the decoder itself.  All decoders communicate back to the command station using what’s called an acknowledgement pulse, which is defined in NMRA RP-9.2.3 as “an increased load on the programming track of at least 60mA for at least 5ms.”  Like most decoders, SoundTraxx Digital Sound Decoders generate the acknowledgment pulse by momentarily applying power to the motor.

If the decoder is otherwise working properly (i.e., responds properly on the mainline to speed and direction commands), but the command station is having trouble reading CV data from the decoder, it may be due to incompatibilities between the electrical requirements of the sound decoder (which are different from conventional decoders due to the added audio circuitry) and the electrical characteristics of the programming track.

In this case, you will need to use a programming track booster, such as the PTB-100.  The PTB-100 amplifies the programming track signals to levels that work best with SoundTraxx Sound Decoders. It is easy to install and inexpensive.  An advantage to using the PTB-100 is that it also provides short circuit detection and some helpful diagnostics.

Item Description MSRP Lin’s Price
678-829002 PTB-100 Programming Track Booster $59.95 $51.00